Effect of Photoselective Screens in the Development and Productivity of Red and Yellow Sweet Pepper
|
|
- Elinor Farmer
- 6 years ago
- Views:
Transcription
1 Effect of Photoselective Screens in the Development and Productivity of Red and Yellow Sweet Pepper J.Q. Santana, M.A. Balbino, T.R. Tavares, R.S. Bezerra, J.G. Farias and R.C. Ferreira Agronomy and Food Engineering College Federal University of Goiás Goiânia Brazil Keywords: Capsicum annuum var. annuum, protected cultivation, crop ecology, photosynthetically active radiation Abstract Photoselective screens promote better solar radiation quality and attenuate the extreme climatic conditions allowing greater efficiency in the vegetables production in protected crops. In Brazil the sweet pepper is traditionally cultivated in field conditions, but recently there have been investments in screenhouses and greenhouses. This research evaluated the effect of photoselective blue and red screens on the vegetative development and productivity of yellow and red sweet peppers. The experiment was conducted from 19 June to 29 October 2011, in Goiânia, Goiás, Brazil ( S; W, 730 m). The Eppo (yellow) and Margarita (red) hybrids from Syngenta Seeds were cultivated in three treatments: two shading screenhouses with field plots as control. Stem diameter and length, number of leaves, leaf area, total plant mass and mass of leaves were measured. At 40 days the total number, weight, length, diameter and number of fruits lost by sunscald or rotting were measured. The blue and red screens have promoted greater stem growth and smaller number of leaves and fruits. There was no statistical difference for leaf area, showing there is compensation between number and leaf area. The total fruit production per plant occurred in decreasing order from field conditions, to red screen followed of blue. However, the losses by sunscald and rotting was greater than 35% in field conditions, while in the screenhouses the losses were less than 5%. In this way, the production of commercial fruits per plant was higher under red screenhouse than under the blue screenhouse and in the field. The photoselective red screen promoted greater plant growth and a slight increase (4%) in the commercial fruits yield for Brazilian Midwest climatic conditions. INTRODUCTION In the north, south and in the southeast Brazilian regions, where the climate is temperate and semi-tempered, the cultivation in protected environment aimed to minimize the effects of winter ensuring that way, continuous production of food. In tropical regions as the midwest of Brazil the average annual temperature is above 20 C, with only two defined seasons (dry and wet). Thus, the production of vegetables is predominantly in open conditions, with high productivity, especially in the dry season. However, in the last 10 years the use of screened and greenhouses to produce vegetables and fruits of high commercial value has increased in order to gain in productivity and quality, especially in the rainy season. The market has launched several models of screens to replace the black shading whose main objective is to protect the plants from direct solar radiation. These materials of low density polyethylene (LDPE) are of various colors (blue, red, yellow, gray) with specific functions. The red color screens transfer more of the solar radiation wave spectrum in the red and far red and diffuse solar radiation passing through the screen, being efficient in plant development (Li, 2006). The blue screens of the spectrum providing solar radiation at a wavelength of nm, intensify the phototropism and photosynthesis (Rodrigues, 2002). Several studies (Shahak et al., 2006; Rajapakse and Shahak, 2007; Shahak et al., Proc. 7 th IS on Light in Horticultural Systems Eds.: S. Hemming and E. Heuvelink Acta Hort. 956, ISHS
2 2008) demonstrated the use of photoselective screens causes an increase in productivity and quality of tomato, pear, apple, strawberry, grape and green pepper. However, there are few papers that focus on the tropical regions as midwest Brazil. The aim of this study was to evaluate the development and productivity of two hybrid peppers, red and yellow, under red and blue photoselective screens, at the bioclimatic conditions of the tropical Brazilian region. MATERIALS AND METHODS The experiment was conducted from 19 June 2011 to 31 October 2011 in Goiânia, Goiás, Brazil ( S; W, and 730 m). The climate is classified as Aw for the Köppen-Geiger climatic classification (Kottec et al., 2006). It is hot and semi-humid with well-defined dry season, from May to September, with average annual temperature of 23.2 C, with average maximum and minimum of 29.8 and 17.9 C, respectively. The average annual rainfall is 1,575.9 mm and the average total annual sunshine is 2,588.1 h. Eppo (yellow) and Margarita (red) hybrids were grown, from Syngenta Seeds. Two screenhouses were used, each of m in height (installed in the SE-NW direction). Both red and blue photoselective screens (Polysack, Israel) were characterized with 40% shade rating. As control field conditions (opened area) were used demarked with the same dimensions of the screenhouses. For the three treatments six beds were prepared 1.0 m wide, 14.0 m long and 0.3 m high, with 1.0 m spacing between them. Transplant in double rows was carried out, with plant spacing of cm in the plot (approximately 26,666 plants/ha). Altogether 140 plants were transplanted for each cultivar per treatments, providing six independent populations. Polyethylene mulching film with double-sided and drip irrigation was used. The fertilizations were carried out in accordance with the recommendations for this crop. The plants were tutored and driving was done in vertical wires with horizontal ribbon. Meteorological parameters, such as, the solar radiation (SR), photosynthetically active radiation (PAR), temperature and air relative humidity were obtained from continuous records by sensors coupled to dataloggers (Spectrum, model Series 2000). The measurements were taken every ten seconds and their average values were recorded every 15 minutes. The SR and PAR were measured by pyranometers and quantum sensors, respectively. All sensors were installed in the center of each screenhouse and in open field at a height of 1.5 m tall. Average air temperature, average air humidity, and accumulated degrees-day, rate of real shading, SR and PAR accumulated averages were determined. Moreover, in order to verify the PAR use efficiency the ratio of PAR accumulated for the fruits per plant was calculated. The degree-days were calculated using basal body temperature of 10 C (Goto and Tivelli, 1998). ANOVA was performed as a completely randomized design (three environment as treatment and day as repetition) and the averages were compared by Scott-Knott test at 5% significance level. At 120 days after transplanting, and 24 days after the beginning of the productive period the diameter and stem length, leaf number, leaf area, total plant mass and mass of leaves for a sample of 32 plants of each population were measured. From the 96 th to 135 th days after transplanting the number of fruits per plant and total yield per plant in another sample of 32 plants were determined. It was adopted as the fruit harvest point that over 50% of red or yellow. In the same period were determined the production of commercial fruits per plant and the percentage of fruits lost by blight in another 32 plants. For such classification is hoped that the fruits reach the commercial standard (more than 90% of the fruit in red or yellow). In addition for 100 fruits of each population were determined the mass, length and diameter. Statistical analysis was performed by comparing independent populations and to compare the means using the Student t test at 5% significance level. RESULTS AND DISCUSSION The red screen promoted higher meteorological data (Table 1) than blue screen. 494
3 The red screen promoted less shading (48.23 and 59.27% for SR and PAR, respectively) than the blue screen (38.58 and 52.68% for SR and PAR, respectively). This difference between the nominal shading (40%) and the measured one may be due either to interaction between the colors screens or to the meteorological factors (Stamps, 2009). The 10% difference in shading between the screens, is certainly the main factor that explains the lower values of SR, average temperature and degree days, and relative humidity of blue screen over the red one. The PAR, in turn, over the rate of shading may have been influenced by the color of the screen. Experiments conducted in southern Brazil (Costa et al., 2011), have shown that the PAR level under the blue screen on the cloudy days was lower than the values measured under red and blue screen measured with the same nominal shading between 8:00 am and 5:00 pm. These results also agree with another experiment (Leite et al., 2008) carried out in the Brazilian southeastern region, monitoring the PAR between 9:00 am and 5:00 pm in the cultivation of several Phalaenopsis and hybrids. About the effect of treatments on the vegetative plant growth, there was no significant difference between the hybrid pepper for stem diameter, stem length, stem mass, leaf mass, leaf area and chlorophyll total plant content (Table 2). The hybrid Eppo had lower stem mass in blue screen and the Margarita hybrid showed no difference between the treatments. There was difference between the treatments for stem length, leaf mass and leaf number. Plants under the screens showed greater stem length, fewer leaves and less total leaf mass. Thus, there is the typical behavior of plants in low light saturation; the plants were taller, with fewer leaves, but leaves with greater area. Rajapakse and Shahak (2007) suggested 30% or less shading rate instead of 40% because of the limitation caused by excessive shading on the vegetable development. For the production characteristics (Table 3), there was no difference between hybrids for pepper fruit number per plant, fruit weight and total yield per plant. About the treatments, the number of fruits per plant and total production occurred in decreasing order from field conditions to red and blue screens, respectively; in turn, the fruit mass average was higher in blue screen surpassing the red screen and field condition that did not differ. Comparing colored screens such as, red, blue, reflective (aluminized) and absence of shading in the greenhouse, Costa et al. (2011) obtained yield per strawberry plant, in decreasing order from the treatment without shadowing to red, blue, and reflective screens, respectively. The highest yields occurred in the field conditions and under red screen over blue one can be explained by greater exposure to red and far red radiation during growth and leaf development. According to Kasperbauer and Hamilton (1984) the relationship between red and far red solar radiation influences the development of chloroplasts to ensure the most efficient plant survival, which possibly influenced the photosynthetic capacity, promoting a higher productivity. Atkinson et al. (2006) explained the lower productivity obtained under blue screen due to the redirection of photoassimilates for leaf area production in order to increase the solar radiation gathering, leaving less energy for the formation of fruit. In turn, the ratio between the PAR and the cumulative fruit total production per plant (Fig. 2) indirectly informs the PAR conversion efficiency in fruit mass. There was no difference between the screens, which were more efficient than field conditions. This result supports the hypothesis that production of peppers were inherent by the shading and not by the changes in the spectrum of solar radiation promoted by the colored screens. For fruit diameter and its length (Table 3) there was no difference between hybrids. But, there is interaction between screens and hybrids. The hybrid Margarita promoted diameter in descending order from blue screen (which it was also greater than Eppo ), followed by field conditions and red screen (in both they were lower than Eppo ). The hybrid Eppo had a greater diameter in the red screen. But, in the other treatments did not differ. For fruit length, the hybrid Margarita had higher averages than Eppo under blue screen and field conditions. But it did not differ in the red screen. Thus, 495
4 there is positive interaction between blue screen and red sweet pepper, which Margarita reached greater length and diameter in blue screen. Likewise, there was positive interaction between red screen and yellow sweet pepper. Eppo had a greater diameter in red screen. On the percentage of fruit loss (Table 3), Eppo hybrid showed higher losses than Margarita in field conditions. This demonstrates the Eppo blight sensitivity under the sun. When comparing the treatments for the two hybrids, the screens did not differ from each other and the greatest losses were observed in the field conditions. In literature several studies (Rajapakse and Shahak, 2007; Stamps, 2009) demonstrated improvement in fruit quality and an increase in commercial fruit production due to the use of colored shading screens. In addition to protection against direct solar radiation avoiding damage to the fruit epidermis, these screens promote better solar radiation distribution within the plant canopy, improving the size, ripeness, color and taste of the fruits. On the production of commercial fruits per plant (Table 3), hybrids differed only in field conditions, where Margarita was more productive than Eppo, considering the further loss of Eppo. Regarding the treatment, it was found for Margarita that the red screens did not differ to field conditions, but both outperformed the blue screen. For the Eppo hybrid, the red screen promoted greater production (increase of 4%) than field conditions and blue screens, which did not differ from each other. Fallik et al. (2009) comparing red and black screen on the sweet pepper production, found an increased production of commercial fruits in red screens. However, if the economic feasibility would be calculated of investing in a screened structure to achieve a real increase in production of only 4% (Table 3), certainly it does not recommend the use of screens in the Brazil midwest weather conditions. Maybe using 30% shading would be able to achieve higher productivity (Rajapakse and Shahak, 2007). In an experiment carried out in Serbia with sweet pepper 40 and 50% shading were compared (Ilić et al., 2011). The authors also concluded that lower rates of shading promote increased production, regardless of the screen colors. The complexity and variability of natural radiation on one side, and the multiple reactions of plant response on the other one, make it difficult to predict how a given manipulation of natural solar radiation will affect vegetative responses (Stamps, 2009). Thus, this study confirms the need for further studies regarding the use of photoselective screens in tropical regions as the midwest of Brazil, especially regarding the most appropriate rate of shading and color interaction between the screens and the different cultures and cultivars. CONCLUSIONS 1. The use of 40% shading screens or more shading rate in the bioclimatic conditions of Goiânia, Goiás, Brazil leads the etiolation plants, greater length of stem and fewer leaves, when compared to field conditions. 2. There is no difference between hybrids Margarita and Eppo for most features. The hybrids differ only in fruit shape, as expected, and on the Eppo susceptibility to the blight, causing greater loss percentage of fruits. 3. The photoselective screens, especially the blue one, promote reduction on the number of fruits and total yield per plant. In contrast, they promote more fruit mass. 4. The use of screens reduces losses by sun blight in sweet peppers production, especially for the Eppo hybrid. 5. The blue screen had the lowest commercial fruits production per plant. 6. The red screen promotes slight increase in the commercial fruits yield per plant, compared to the field conditions, mainly for the Eppo hybrid, which promoted an increase of 4%. ACKNOWLEDGEMENTS The authors are grateful for the Coordination of Improvement of Higher Education 496
5 Personnel (CAPES), for the scholarship granted to the first author. Literature Cited Atkinson, C.J., Dodds, P.A.A., Ford, Y.Y., Miére, J.L.E., Taylor, J.M., Blake, P.S. and Paul, N Effects of cultivar, fruit number and reflected photosynthetically active radiation on Fragaria ananassa productivity and fruit ellagic acid and ascorbic acid concentrations. Annals of Botany, Londres 97(3): Costa, R.C., Calvete, E.O., Reginatto, F.H., Cecchetti, D., Loss, J.T., Rambo, A. and Tessaro, F Telas de sombreamento na produção de morangueiro em ambiente protegido. Horticultura Brasileira 29: Costa, R.C Teores de clorofila, produção e qualidade de frutos de morangueiro sob telas de sombreamento em ambiente protegido.. Dissertação de Mestrado. Universidade de Passo Fundo. Disponível em rosianicastoldi.pdf. Acesso em Janeiro de Fallik, E., Alkalai-Tuvia, S., Parselan, Y., Aharon, Z., Elmann, A., Offir, Y., Matan, E., Yehezkel, H., Ratner, K., Zur, N. and Shahak, Y Can colored shade nets maintain sweet pepper quality during storage and marketing? Acta Hort. 830: Goto, R. and Tivelli, S.W (org.) Produção de hortaliças em ambiente protegido: condições subtropicais. São Paulo: UNESP. 319p. Ilić, Z., Milenković, L., Đurovka, M. and Kapoulas, N The effect of color shade nets on the greenhouse climate and pepper yield. 46 th Croatian and 6 th International Symposium on Agriculture. Opatija. Croatia, p Leite, C.A., Ito, R.M., Lee, G.T.S., Ganelevin, R. and Fagnani, M.A Light spectrum management using colored nets to control the growth and blooming of Phalaenopsis. Acta Hort. 770: Li, J.C Uso de mallas en invernaderos. Horticultura Internacional n. extra: Kasperbauer, M.J. and Hamilton, J.L Chloroplast structure and starch grain accumulation in leaves that received different red and far-red levels during development. Plant Physiology 74: Kottek, M., Grieser, J., Beck, C., Rudolf, B. and Rubel, F World map of the Köppen-Geiger climate classification updated. Meteorologische Zeitschrift 15(3): (5). Rodrigues, L.R.F Técnicas de cultivo hidropônico e de controle ambiental no manejo de pragas, doenças e nutrição vegetal em ambiente protegido. Jaboticabal: Funep. Rajapakse, N.C. and Shahak, Y Light quality manipulation by horticulture industry. p In: G. Whitelam and K. Halliday (eds.), Light and Plant Development, Blackwell Publishing, UK. Shahak, Y., Yehezkel, H. and Matan, E Colored shade nets improve production in bell peppers. Gan Sade Vameshek April, p (in Hebrew). Shahak, Y., Ratner, K., Giller, Y.E., Zur, N., Or, E., Gussakovsky, E.E., Stern, R., Sarig, P., Raban, E., Harcavi, E., Doron, I. and Greenblat-Avron, Y Improving solar energy utilization, productivity and fruit quality in orchards and vineyards by photoselective netting. Acta Hort. 772: Stamps, R.H Use of colored shade netting in horticulture. J. HortScience 44(2):
6 498 Tables Table 1. Averages weather data for each treatment during the experimental period (19 June to 10 October 2011). Goiânia, Goiás, Brazil. Treatments RH T SR PAR Accumulated SR Accumulated PAR Degree-days Real Shading (%) (%) ( C) (MJ m -2 ) (MJ m -2 ) (MJ m -2 ) (MJ m -2 ) ( C day) SR PAR Red screen a b b 4.28 b Blue screen a c c 3.65 c Field condition b a a 9.05 a CV (%) Legend: RH relative humidity; T temperature; SR global solar radiation; PAR photosynthetically active radiation. Averages with the same letter within the column do not differ by Scott-Knott test at 5%. Table 2. Average vegetative characteristics of Margarita and Eppo sweet pepper hybrid grown in Goiânia, Goiás, Brazil. Treatments Stem diameter (mm) Stem lenght (cm) Stem mass (g) Leaf mass (g) Leaf number (u) Foliar area (m 2 ) Chlorophyll (Spad Index) RSP YSP RSP YSP RSP YSP RSP YSP RSP YSP RSP YSP RSP YSP Red screen aa aa aa aa aa aa ab ab 330 ab 323 ab 1.13 aa 1.15 aa aa aa Blue screen aa aa aa aa aa ab ab ab 319 ab 273 ab 1.16 aa 0.88 aa aa aa Field condition aa aa ab ab aa aa aa aa 447 aa 411 aa 1.04 aa 0.94 aa aa aa CV (%) Legend: RSP red sweet pepper ( Margarita hybrid); ASP yellow sweet pepper ( Eppo hybrid). Averages with the same minuscule letter within the line and capital letter within the column do not differ by Scott-Knott test at 5%. Chlorophyll measured with SPAD-502 (MINOLTA). 498
7 Table 3. Average productive characteristics of Margarita and Eppo sweet pepper hybrid grown in Goiânia, Goiás, Brazil. Treatments Fruits/plant (unit) Fruit mass (g) Fruit diameter (mm) Fruit lenght (cm) Total fruit mass/plant (kg) Discarded fruit (%) Commercial fruit mass/plant (g) RSP YSP RSP YSP RSP YSP RSP YSP RSP YSP RSP YSP RSP YSP Red screen 9.59aB 9.06aB 194.8aB 246.3aA 64.8bC 75.82aA 13.25aB 13.13aA 1.86aB 1.79aB 5aB 6aB 1.77aA 1.74aA Blue screen 6.88aC 7.06aC aA aA 76.03aA 71.74bB 15.46aA 13.41bA 1.65aC 1.58aC 4aB 5aB 1.62aB 1.56aB Field 12.25aA 12.71aA aB aB 68.42bB 71.79aB 13.75aB 12.98bA 2.32aA 2.36aA 20bA 35aA 1.88aA 1.68bB condition CV (%) Legend: RSP red sweet pepper ( Margarita hybrid); ASP yellow sweet pepper ( Eppo hybrid). Averages with the same minuscule letter within the line and capital letter within the column do not differ by Scott-Knott test at 5%
8 Figures Fig. 1. Regression of PAR SR within each treatment (FC Field Conditions; RSc Red Screen; BSc Blue Screen). 120 Accumulated PAR / Yield per plant RSP YSP Environment Fig. 2. PAR efficiency use. Legend: 1 Red Screen; 2 Blue Screen; 3 Field Conditions. RSP red sweet pepper ( Margarita hybrid); ASP yellow sweet pepper ( Eppo hybrid). 500
Flowering and Fruiting Morphology of Hardy Kiwifruit, Actinidia arguta
Flowering and Fruiting Morphology of Hardy Kiwifruit, Actinidia arguta Chantalak Tiyayon and Bernadine Strik Department of Horticulture, Oregon State University 4017 ALS, Corvallis, OR 97331, USA Email:
More informationBell peppers (Capsicum annuum L.) grown under diffuse glass. Christien Sauviller Research Centre Hoogstraten Meerle, Belgium
Bell peppers (Capsicum annuum L.) grown under diffuse glass Christien Sauviller Research Centre Hoogstraten Meerle, Belgium Pepper production in Belgium Bell pepper: red, green, yellow, orange Heated greenhouse
More informationRegression Models for Saffron Yields in Iran
Regression Models for Saffron ields in Iran Sanaeinejad, S.H., Hosseini, S.N 1 Faculty of Agriculture, Ferdowsi University of Mashhad, Iran sanaei_h@yahoo.co.uk, nasir_nbm@yahoo.com, Abstract: Saffron
More informationInfluence of Cultivar and Planting Date on Strawberry Growth and Development in the Low Desert
Influence of Cultivar and Planting Date on Strawberry Growth and Development in the Low Desert Michael A. Maurer and Kai Umeda Abstract A field study was designed to determine the effects of cultivar and
More informationUsing Growing Degree Hours Accumulated Thirty Days after Bloom to Help Growers Predict Difficult Fruit Sizing Years
Using Growing Degree Hours Accumulated Thirty Days after Bloom to Help Growers Predict Difficult Fruit Sizing Years G. Lopez 1 and T. DeJong 2 1 Àrea de Tecnologia del Reg, IRTA, Lleida, Spain 2 Department
More informationNAME OF CONTRIBUTOR(S) AND THEIR AGENCY:
TITLE OF PROJECT: Evaluation of Topaz (propiconazole) for transplant size control and earlier maturity of processing tomato. NAME OF CONTRIBUTOR(S) AND THEIR AGENCY: J.W. Zandstra, Ridgetown College, University
More informationRelationship between Mineral Nutrition and Postharvest Fruit Disorders of 'Fuerte' Avocados
Proc. of Second World Avocado Congress 1992 pp. 395-402 Relationship between Mineral Nutrition and Postharvest Fruit Disorders of 'Fuerte' Avocados S.F. du Plessis and T.J. Koen Citrus and Subtropical
More informationWALNUT HEDGEROW PRUNING AND TRAINING TRIAL 2010
WALNUT HEDGEROW PRUNING AND TRAINING TRIAL 2010 Carolyn DeBuse, John Edstrom, Janine Hasey, and Bruce Lampinen ABSTRACT Hedgerow walnut orchards have been studied since the 1970s as a high density system
More informationPlant Population Effects on the Performance of Natto Soybean Varieties 2008 Hans Kandel, Greg Endres, Blaine Schatz, Burton Johnson, and DK Lee
Plant Population Effects on the Performance of Natto Soybean Varieties 2008 Hans Kandel, Greg Endres, Blaine Schatz, Burton Johnson, and DK Lee Natto Natto soybeans are small (maximum of 5.5 mm diameter),
More information(36) PROHEXADIONE-CALCIUM AFFECTS SHOOT GROWTH AND YIELD OF LEMON, ORANGE AND AVOCADO DIFFERENTLY
(36) PROHEXADIONE-CALCIUM AFFECTS SHOOT GROWTH AND YIELD OF LEMON, ORANGE AND AVOCADO DIFFERENTLY Lauren C. Garner, Yusheng Zheng, Toan Khuong and Carol J. Lovatt 1 ABSTRACT Lemon (Citrus limon L.) and
More informationInfluence of GA 3 Sizing Sprays on Ruby Seedless
University of California Tulare County Cooperative Extension Influence of GA 3 Sizing Sprays on Ruby Seedless Pub. TB8-97 Introduction: The majority of Ruby Seedless table grapes grown and marketed over
More informationEffects of Preharvest Sprays of Maleic Hydrazide on Sugar Beets
Effects of Preharvest Sprays of Maleic Hydrazide on Sugar Beets F. H. PETO 1 W. G. SMITH 2 AND F. R. LOW 3 A study of 20 years results from the Canadian Sugar Factories at Raymond, Alberta, (l) 4 shows
More informationEffect of Storage Period and Ga3 Soaking of Bulbs on Growth, Flowering and Flower Yield of Tuberose (Polianthes Tuberosa L.) Cv.
Vol.5 No. 1, 28-32 (2016) Received: Sept.2015; Accepted: Jan, 2016 Effect of Storage Period and Ga3 Soaking of Bulbs on Growth, Flowering and Flower Yield of Tuberose (Polianthes Tuberosa L.) Cv. Double
More informationNEW ZEALAND AVOCADO FRUIT QUALITY: THE IMPACT OF STORAGE TEMPERATURE AND MATURITY
Proceedings V World Avocado Congress (Actas V Congreso Mundial del Aguacate) 23. pp. 647-62. NEW ZEALAND AVOCADO FRUIT QUALITY: THE IMPACT OF STORAGE TEMPERATURE AND MATURITY J. Dixon 1, H.A. Pak, D.B.
More information21/06/2009. Metric Tons (000) '95 '96 '97 '98 '99 '00 '01 '02 '03 '
How Increasing Temperatures Have Reduced Yields and Quality of Californian i Tree Fruit in Warm Years Ted DeJong Department of Plant Sciences UC Davis While much of the climate change discussion is focused
More informationTHE EFFECT OF DIFFERENT APPLICATIONS ON FRUIT YIELD CHARACTERISTICS OF STRAWBERRIES CULTIVATED UNDER VAN ECOLOGICAL CONDITION ABSTRACT
Gecer et al., The Journal of Animal & Plant Sciences, 23(5): 2013, Page: J. 1431-1435 Anim. Plant Sci. 23(5):2013 ISSN: 1018-7081 THE EFFECT OF DIFFERENT APPLICATIONS ON FRUIT YIELD CHARACTERISTICS OF
More informationANALYSIS OF CLIMATIC FACTORS IN CONNECTION WITH STRAWBERRY GENERATIVE BUD DEVELOPMENT
AGRICULTURAL SCIENCES (CROP SCIENCES, ANIMAL SCIENCES) ANALYSIS OF CLIMATIC FACTORS IN CONNECTION WITH STRAWBERRY GENERATIVE BUD DEVELOPMENT Ieva Kalniņa 1,, Sarmīte Strautiņa 1 Latvia University of Agriculture
More informationResearch Progress towards Mechanical Harvest of New Mexico Pod-type Green Chile
Research Progress towards Mechanical Harvest of New Mexico Pod-type Green Chile Dr. Stephanie Walker swalker@ Introduction New Mexico Chile NM pod type chile peppers (C. annuum) -Introduction with New
More informationANALYSIS OF THE EVOLUTION AND DISTRIBUTION OF MAIZE CULTIVATED AREA AND PRODUCTION IN ROMANIA
ANALYSIS OF THE EVOLUTION AND DISTRIBUTION OF MAIZE CULTIVATED AREA AND PRODUCTION IN ROMANIA Agatha POPESCU University of Agricultural Sciences and Veterinary Medicine, Bucharest, 59 Marasti, District
More informationPERFORMANCE OF HYBRID AND SYNTHETIC VARIETIES OF SUNFLOWER GROWN UNDER DIFFERENT LEVELS OF INPUT
Suranaree J. Sci. Technol. Vol. 19 No. 2; April - June 2012 105 PERFORMANCE OF HYBRID AND SYNTHETIC VARIETIES OF SUNFLOWER GROWN UNDER DIFFERENT LEVELS OF INPUT Theerachai Chieochansilp 1*, Thitiporn Machikowa
More informationEffect of Sowing Time on Growth and Yield of Sweet Corn Cultivars
International Journal of Current Microbiology and Applied Sciences ISSN: 2319-7706 Volume 6 Number 4 (2017) pp. 777-782 Journal homepage: http://www.ijcmas.com Original Research Article https://doi.org/10.20546/ijcmas.2017.604.097
More informationFLOWERING OF TOMATO IN RELATION TO PRE-PLANTING LOW TEMPERATURES
FLOWERING OF TOMATO IN RELATION TO PRE-PLANTING LOW TEMPERATURES G. Noto; G. La Malfa Istituto di Orticoltura e Floricoltura Università' degli Studi Catania - Italy Abstract The results of two trials carried
More informationWhat Went Wrong with Export Avocado Physiology during the 1996 Season?
South African Avocado Growers Association Yearbook 1997. 20:88-92 What Went Wrong with Export Avocado Physiology during the 1996 Season? F J Kruger V E Claassens Institute for Tropical and Subtropical
More informationThe aim of the thesis is to determine the economic efficiency of production factors utilization in S.C. AGROINDUSTRIALA BUCIUM S.A.
The aim of the thesis is to determine the economic efficiency of production factors utilization in S.C. AGROINDUSTRIALA BUCIUM S.A. The research objectives are: to study the history and importance of grape
More informationAMINOFIT.Xtra, SOME TEST RESULTS
FRUITS WALNUT CHERRY PLUM PEAR APPLE STRAWBERRY VEGETABLES ORNAMENTALS, SOME TEST RESULTS POTATO ONION TOMATO MELON LETTUCE BERMUDA GRASS ORCHID PELARGONIUM CHRYSANTHEMUM on WALNUT (Australia 23) DO YOU
More informationEffects of Plastic Covers on Canopy Microenvironment and Fruit Quality. Matthew Fidelibus Viticulture & Enology UC Davis
Effects of Plastic Covers on Canopy Microenvironment and Fruit Quality Matthew Fidelibus Viticulture & Enology UC Davis Justification and importance Table grapes are costly to produce Late-harvested fruit
More informationINFLUENCE OF SEED VIGOUR ON CROP GROWTH AND YIELD OF BSH-1 HYBRID SUNFLOWER UNDER NORMAL AND COMPENSATED SEED RATES
INFLUENCE OF SEED VIGOUR ON CROP GROWTH AND YIELD OF BSH-1 HYBRID SUNFLOWER UNDER NORMAL AND COMPENSATED SEED RATES V.P. Kalappa, K. Somasekhara and P. Balakrishna University of Agricultural Sciences,
More informationJoseph G. Alfieri 1, William P. Kustas 1, John H. Prueger 2, Lynn G. McKee 1, Feng Gao 1 Lawrence E. Hipps 3, Sebastian Los 3
Joseph G. Alfieri 1, William P. Kustas 1, John H. Prueger 2, Lynn G. McKee 1, Feng Gao 1 Lawrence E. Hipps 3, Sebastian Los 3 1 USDA, ARS, Hydrology & Remote Sensing Lab, Beltsville MD 2 USDA,ARS, National
More informationWhat Effect do Nitrogen Fertilization Rate and Harvest Date Have on Cranberry Fruit Yield and Quality?
What Effect do Nitrogen Fertilization Rate and Harvest Date Have on Cranberry Fruit Yield and Quality? Bernadine Strik, Professor of Horticulture Extension Berry Crops Specialist, Oregon State University
More informationEffects of Drying and Tempering Rice Using a Continuous Drying Procedure 1
RICE QUALITY AND PROCESSING Effects of Drying and Tempering Rice Using a Continuous Drying Procedure 1 J.W. Fendley and T.J. Siebenmorgen ABSTRACT The objective of this research was to determine the effects
More informationINFLUENCE OF ENVIRONMENT - Wine evaporation from barrels By Richard M. Blazer, Enologist Sterling Vineyards Calistoga, CA
INFLUENCE OF ENVIRONMENT - Wine evaporation from barrels By Richard M. Blazer, Enologist Sterling Vineyards Calistoga, CA Sterling Vineyards stores barrels of wine in both an air-conditioned, unheated,
More informationResearch - Strawberry Nutrition
Research - Strawberry Nutrition The Effect of Increased Nitrogen and Potassium Levels within the Sap of Strawberry Leaf Petioles on Overall Yield and Quality of Strawberry Fruit as Affected by Justification:
More informationUNIVERSITY OF CALIFORNIA AVOCADO CULTIVARS LAMB HASS AND GEM MATURITY AND FRUIT QUALITY RESULTS FROM NEW ZEALAND EVALUATION TRIALS
: 15-26 UNIVERSITY OF CALIFORNIA AVOCADO CULTIVARS LAMB HASS AND GEM MATURITY AND FRUIT QUALITY RESULTS FROM NEW ZEALAND EVALUATION TRIALS J. Dixon, C. Cotterell, B. Hofstee and T.A. Elmsly Avocado Industry
More informationA new approach to understand and control bitter pit in apple
FINAL PROJECT REPORT WTFRC Project Number: AP-07-707 Project Title: PI: Organization: A new approach to understand and control bitter pit in apple Elizabeth Mitcham University of California Telephone/email:
More informationIrrigation of Sunflowers in Northwestern Kansas
Proceedings of the 2013 Irrigation Association Technical Conference, Austin, Texas, November 4-8, Available from the Irrigation Association, Falls Church, Virginia Irrigation of Sunflowers in Northwestern
More informationPlant root activity is limited to the soil bulbs Does not require technical expertise to. wetted by the water bottle emitter implement
Case Study Bottle Drip Irrigation Case Study Background Data Tool Category: Adaptation on the farm Variety: Robusta Climatic Hazard: Prolonged dry spells and high temperatures Expected Outcome: Improved
More informationGenotype influence on sensory quality of roast sweet pepper (Capsicum annuum L.)
ORIGINAL SCIENTIFIC PAPER Genotype influence on sensory quality of roast sweet pepper (Capsicum annuum L.) Galina Pevicharova, Velichka Todorova Maritsa Vegetable Crops Research institute, Brezovsko shosse
More informationResults from the studies of the yield parameters of Hungarian sunflower after pre-sowing electromagnetic treatment of the seeds
Results from the studies of the yield parameters of Hungarian sunflower after pre-sowing electromagnetic treatment of the seeds Laszlo Romhany, Sándor Vágvőlgyi, Ivan Palov, Kiril Sirakov, Svetoslav Zahariev,
More informationTesting Tomato Hybrids for Heat Tolerance at West Tennessee Experiment Station, Jim E. Wyatt and Craig H. Canaday. Interpretative Summary
Testing Tomato Hybrids for Heat Tolerance at West Tennessee Experiment Station, 2000 Jim E. Wyatt and Craig H. Canaday Interpretative Summary The highest yielding early tomato hybrid in both spring and
More informationPGR Strategies to Increase Yield of Hass Avocado
PGR Strategies to Increase Yield of Hass Avocado Continuing Project: Year 2 of 4 Project Leader: Carol J. Lovatt (951) 827-4663 E-mail: carol.lovatt@ucr.edu Department of Botany and Plant Sciences, UC
More informationWINE GRAPE TRIAL REPORT
WINE GRAPE TRIAL REPORT Stellenbosch, Western Cape Louisvale 2008/09 season Introduction A trial was conducted in the Stellenbosch area on an older wine grape vineyard to determine whether AnnGro alone,
More informationTHE NATURAL SUSCEPTIBILITY AND ARTIFICIALLY INDUCED FRUIT CRACKING OF SOUR CHERRY CULTIVARS
THE NATURAL SUSCEPTIBILITY AND ARTIFICIALLY INDUCED FRUIT CRACKING OF SOUR CHERRY CULTIVARS S. Budan Research Institute for Fruit Growing, Pitesti, Romania sergiu_budan@yahoo.com GENERALITIES It is agreed
More informationMidwest Cantaloupe Variety Trial in Southwest Indiana 2015
Midwest Cantaloupe Variety Trial in Southwest Indiana 2015 Wenjing Guan, Daniel S. Egel, and Dennis Nowaskie Southwest Purdue Agriculture Center, Vincennes, IN, 47591 Introduction Cantaloupe is one of
More informationCHEMICAL THINNING OF APPLE UNDER NORWEGIAN CONDITIONS. WHAT WORKS?
CHEMICAL THINNING OF APPLE UNDER NORWEGIAN CONDITIONS. WHAT WORKS? Frank Maas & Mekjell Meland Norwegian Institute of Bioeconomy Research NIBIO Ullensvang CONTENT PRESENTATION Introduction Frank Maas Background
More informationCOMPARISON OF CORE AND PEEL SAMPLING METHODS FOR DRY MATTER MEASUREMENT IN HASS AVOCADO FRUIT
New Zealand Avocado Growers' Association Annual Research Report 2004. 4:36 46. COMPARISON OF CORE AND PEEL SAMPLING METHODS FOR DRY MATTER MEASUREMENT IN HASS AVOCADO FRUIT J. MANDEMAKER H. A. PAK T. A.
More informationTo study the effects of four different levels of fertilizer NPK nutrients, applied at a ratio of N:P 2
98 E4 Effect of different levels of fertilizer NPK nutrients on growth, yield and economic parameters of coffea arabica (V. catimor) grown on the ferralitic soils of entral ighlands, Vietnam Objective
More informationEFFECT OF TOMATO GENETIC VARIATION ON LYE PEELING EFFICACY TOMATO SOLUTIONS JIM AND ADAM DICK SUMMARY
EFFECT OF TOMATO GENETIC VARIATION ON LYE PEELING EFFICACY TOMATO SOLUTIONS JIM AND ADAM DICK 2013 SUMMARY Several breeding lines and hybrids were peeled in an 18% lye solution using an exposure time of
More informationVivekanandan, K. and G. D. Bandara. Forest Department, Rajamalwatta Road, Battaramulla, Sri Lanka.
Vivekanandan, K. and G. D. Bandara. Forest Department, Rajamalwatta Road, Battaramulla, Sri Lanka. LEUCAENA SPECIES RESISTANCE TO PSYLLID (H ETERO PSYLLA CUBANA CRAWFORD) IN SRI LANKA Introduction. Giant
More informationEFFECT OF CURING AND SEAL PACKAGING ON PEEL AND PULP WEIGHT LOSS PERCENTAGE OF SCUFFING DAMAGED AND UNDAMAGED CITRUS FRUIT.
200 EFFECT OF CURING AND SEAL PACKAGING ON PEEL AND PULP WEIGHT LOSS PERCENTAGE OF SCUFFING DAMAGED AND UNDAMAGED CITRUS FRUIT. Dr. M. Akram Tariq, 1 Ex Professor A. K. Thompson, 2 Ali Asghar Asi 3 and
More informationEffects of Seedling Age, and Different Levels of N, K and K/N on Quality and Yield of Tomato Grown in Perlite Bag Culture
Effects of Seedling Age, and Different Levels of N, K and K/N on Quality and Yield of Tomato Grown in Perlite Bag Culture Sureyya ALTINTAS*, Servet VARIS, Ömer KESKIN, İbrahim KURU Namık Kemal University,
More informationD Lemmer and FJ Kruger
D Lemmer and FJ Kruger Lowveld Postharvest Services, PO Box 4001, Nelspruit 1200, SOUTH AFRICA E-mail: fjkruger58@gmail.com ABSTRACT This project aims to develop suitable storage and ripening regimes for
More informationINCREASING PICK TO PACK TIMES INCREASES RIPE ROTS IN 'HASS' AVOCADOS.
: 43-50 INCREASING PICK TO PACK TIMES INCREASES RIPE ROTS IN 'HASS' AVOCADOS. J. Dixon, T.A. Elmlsy, D.B. Smith and H.A. Pak Avocado Industry Council Ltd, P.O. Box 13267, Tauranga 3110 Corresponding author:
More informationVibration Damage to Kiwifruits during Road Transportation
International Journal of Agriculture and Food Science Technology. ISSN 2249-3050, Volume 4, Number 5 (2013), pp. 467-474 Research India Publications http://www.ripublication.com/ ijafst.htm Vibration Damage
More informationMechanical Canopy and Crop Load Management of Pinot Gris. Joseph P. Geller and S. Kaan Kurtural
Mechanical Canopy and Crop Load Management of Pinot Gris Joseph P. Geller and S. Kaan Kurtural 3.6 million tons of wine grapes grown in CA More than 50% comes from the San Joaquin Valley More than 60%
More informationAt harvest the following data was collected using the methodology described:
TITLE OF PROJECT: Processing standard sweet corn cultivar evaluations - Pillsbury 2006. NAME OF CONTRIBUTOR(S) AND THEIR AGENCY: J.W. Zandstra and R.C. Squire, University of Guelph, Ridgetown Campus, Ridgetown,
More informationUnderstanding Nitrogen, Phosphorus, and Potassium in Grapes. R. Paul Schreiner USDA - ARS - HCRL Corvallis, OR
Understanding Nitrogen, Phosphorus, and Potassium in Grapes R. Paul Schreiner USDA - ARS - HCRL Corvallis, OR Research Profile Schreiner Lab Root Physiology in Grapes Defining & Characterizing AMF Diversity
More informationEFFECTS OF KAOLIN CLAY PARTICLE FILM ON LEAF TEMPERATURE, NUT TEMPERATURE AND SUNBURN SUSCEPTIBILITY IN WALNUT
EFFECTS OF KAOLIN CLAY PARTICLE FILM ON LEAF TEMPERATURE, NUT TEMPERATURE AND SUNBURN SUSCEPTIBILITY IN WALNUT Bruce Lampinen, Kathy Kelley Anderson, Sam Metcalf, and Claudia Negrón ABSTRACT Sunburn occurred
More information18 PHOTOSYNTHESIS AND CARBOHYDRATE PARTITIONING IN CRANBERRY
18 PHOTOSYNTHESIS AND CARBOHYDRATE PARTITIONING IN CRANBERRY Teryl R. Roper, Marianna Hagidimitriou and John Klueh Department of Horticulture University of Wisconsin-Madison Yield per area in cranberry
More informationEffect of Pruning Severity and Branch Quality on Fruit Set and Fruit Dry Weight of Packham s Triumph Pears (Pyrus communis L.)
Effect of Pruning Severity and Branch Quality on Fruit Set and Fruit Dry Weight of Packham s Triumph Pears (Pyrus communis L.) L.P. Reynolds, G. Jacobs and K.I. Theron Department of Horticultural Science
More informationStructural optimal design of grape rain shed
Available online at www.sciencedirect.com Procedia Engineering 31 (2012) 751 755 International Conference on Advances in Computational Modeling and Simulation Structural optimal design of grape rain shed
More information1. Title: Identification of High Yielding, Root Rot Tolerant Sweet Corn Hybrids
Report to the Oregon Processed Vegetable Commission 2007 2008 1. Title: Identification of High Yielding, Root Rot Tolerant Sweet Corn Hybrids 2. Project Leaders: James R. Myers, Horticulture 3. Cooperators:
More information2014 Agrium AT Fertilizer Trial Glen R. Obear and Bill Kreuser, Ph.D University of Nebraska-Lincoln. Objectives
2014 Agrium AT Fertilizer Trial Glen R. Obear and Bill Kreuser, Ph.D University of Nebraska-Lincoln Objectives The objective of this research was to quantify turf response to slow- and controlled-release
More informationTHE ANNUAL PRODUCTION AND UTILIZATION OF DRY MATTER OF AN AVOCADO (Persea americana Mill.) TREE SUMMARY
1999. Revista Chapingo Serie Horticultura 5:89-94. THE ANNUAL PRODUCTION AND UTILIZATION OF DRY MATTER OF AN AVOCADO (Persea americana Mill.) TREE G. Adar Gaaton, 25130 Israel. Fax. 972-4-9858413. E-mail:
More informationResponse of Three Brassica Species to High Temperature Stress During Reproductive Growth
Response of Three Brassica Species to High Temperature Stress During Reproductive Growth S. V. Angadi 1 *, H. W. Cutforth 1, P. R. Miller 2, B. G. McConkey 1, M. H. Entz 3, S. A. Brandt 4 and K. M. Volkmar
More informationTHE EVALUATION OF WALNUT VARIETIES FOR CALIFORNIA S CENTRAL COAST REGION 2007 HARVEST
THE EVALUATION OF WALNUT VARIETIES FOR CALIFORNIA S CENTRAL COAST REGION 2007 HARVEST William W. Coates ABSTRACT Walnut varieties sometimes have different tree and nut characteristics in the cool Central
More informationTemperature Limitations for Flowering in Strawberry and Raspberry
Temperature Limitations for Flowering in Strawberry and Raspberry A. Sønsteby Arable Crops Division Norwegian Institute for Agricultural and Environmental Research Kapp Norway O.M. Heide Department of
More informationCOMPARISON OF SEEDING RATES AND COATING ON SEEDLING COUNT, ROOT LENGTH, ROOT WEIGHT AND SHOOT WEIGHT OF CRIMSON CLOVER
COMPARISON OF SEEDING RATES AND COATING ON SEEDLING COUNT, ROOT LENGTH, ROOT WEIGHT AND SHOOT WEIGHT OF CRIMSON CLOVER V.A. Corriher, G.W. Evers and P. Parsons 1 Cool season annual legumes, especially
More informationNon-Structural Carbohydrates in Forage Cultivars Troy Downing Oregon State University
Non-Structural Carbohydrates in Forage Cultivars Troy Downing Oregon State University Contact at: OSU Extension Service, Tillamook County, 2204 4 th St., Tillamook, OR 97141, 503-842-3433, Email, troy.downing@oregonstate.edu
More informationEvaluation of 16 Phytophthora capsici-tolerant Pepper Cultivars in Southwest Michigan
Evaluation of 16 Phytophthora capsici-tolerant Pepper Cultivars in Southwest Michigan Dr. Ron Goldy and Virginia Wendzel Southwest Michigan Research and Extension Center Benton Harbor, Michigan Objective
More informationEffect of Planting Date and Maturity Group on Soybean Yield in the Texas South Plains in 2001
Effect of Planting Date and Maturity Group on Soybean Yield in the Texas South Plains in 2001 Calvin Trostle, Extension Agronomy, Lubbock, (806) 746-6101, c-trostle@tamu.edu Brent Bean, Extension Agronomy,
More informationResults and Discussion Eastern-type cantaloupe
Muskmelon Variety Trial in Southwest Indiana 2016 Wenjing Guan, Daniel S. Egel and Dennis Nowaskie Southwest Purdue Agricultural Center, Vincennes, IN, 47591 Introduction Indiana ranks fifth in 2015 in
More informationCanola and Frost What happens to the seed?
Canola and Frost What happens to the seed? Robert Park Oilseed Specialist MAFRI Growing Degree Days 2004 Examples of low temperature impact on Growing Degree Day accumulation 1 : Location Edmonton Saskatoon
More informationEvaluation of 17 Specialty Pepper Cultivars in Southwest Michigan
Evaluation of 17 Specialty Pepper Cultivars in Southwest Michigan Ron Goldy Southwest Michigan Research and Extension Center Benton Harbor, Michigan Objective To evaluate the performance of 17 specialty
More informationStudies in the Postharvest Handling of California Avocados
California Avocado Society 1993 Yearbook 77: 79-88 Studies in the Postharvest Handling of California Avocados Mary Lu Arpaia Department of Botany and Plant Sciences, University of California, Riverside
More informationCanopy Management. M of W 08/02/2012. Plumpton College
Canopy Management M of W 08/02/2012 Plumpton College You recently accepted the vineyard manager position of an established vineyard. Discuss the core issues that you will focus on that will affect wine
More informationCARTHAMUS TINCTORIUS L., THE QUALITY OF SAFFLOWER SEEDS CULTIVATED IN ALBANIA.
CARTHAMUS TINCTORIUS L., THE QUALITY OF SAFFLOWER SEEDS CULTIVATED IN ALBANIA. Valdete VORPSI, Fatos HARIZAJ, Nikoll BARDHI, Vjollca VLADI, Erta DODONA Faculty of Agriculture and Environment, Agriculture
More informationEffect of Sowing Rate on Seed Yield and Yield Components of Narbon Vetch (Vicia narbonensis L.) Under Rainy Condition in Semi-Arid Regions of Turkey
ORIGINAL SCIENTIFIC PAPER Effect of Sowing Rate on Seed Yield and Yield Components of Narbon Vetch (Vicia narbonensis L.) Under Rainy Condition Gaziosmanpasa University, Faculty of Agriculture, Department
More informationUse of Plant Growth Regulators to Increase Fruit Set, Fruit Size and Yield and to Manipulate Vegetative and Floral Shoot Growth
Proceedings of the California Avocado Research Symposium, October 30, 2004. University of California, Riverside. California Avocado Commission. Pages 96-107. Use of Plant Growth Regulators to Increase
More informationLecture 4. Factors affecting ripening can be physiological, physical, or biotic. Fruit maturity. Temperature.
Lecture 4. Factors affecting ripening can be physiological, physical, or biotic. Physiological factors relate to fruit maturity or environmental factors, which affect the metabolism of fruit and banana.
More informationJ. Environ. Sci. & Natural Resources, 9(1): , 2016 ISSN
Effects of Nitrogen Phosphorus Potassium and Sulphur on Growth Yield and Nutrient Content of Strawberry (Fragaria ananassa) C. A. Afroz 1*, M. A. H. Shimul 2, M. Ikrum 3, M. A. Siddiky 4 and M. A. Razzaque
More informationEFFECTS OF HIGH TEMPERATURE AND CONTROLLED FRUITING ON COTTON YIELD
Chapter 6 57 EFFECTS OF HIGH TEMPERATURE AND CONTROLLED FRUITING ON COTTON YIELD Carl F. Ehlig USDA-ARS Brawley, California INTRODUCTION The fruit load is the primary cause for mid-season decreases in
More informationFinal Report to Delaware Soybean Board January 11, Delaware Soybean Board
Final Report to Delaware Soybean Board January 11, 2017 Delaware Soybean Board (susanne@hammondmedia.com) Effect of Fertigation on Irrigated Full Season and Double Cropped Soybeans Cory Whaley, James Adkins,
More informationSUDAN EXPERIENCE IN Reducing Post harvest losses SALAH BAKHIET& WIDAD ABDELRAHMAN
8 TH MEETING OF THE COMCEC AGRICULTURE WORKING GROUP ANKARA OCTOBER 2016 SUDAN EXPERIENCE IN Reducing Post harvest losses SALAH BAKHIET& WIDAD ABDELRAHMAN Reducing Post harvest losses in Horticultural
More informationIMPACT OF RAINFALL PRIOR TO HARVEST ON RIPE FRUIT QUALITY OF HASS AVOCADOS IN NEW ZEALAND
Proceedings V World Avocado Congress (Actas V Congreso Mundial del Aguacate) 2003. pp. 629-634. IMPACT OF RAINFALL PRIOR TO HARVEST ON RIPE FRUIT QUALITY OF HASS AVOCADOS IN NEW ZEALAND H.A. Pak 1, J.
More informationEvaluation of 18 Bell Pepper Cultivars In Southwest Michigan
Evaluation of 18 Bell Pepper Cultivars In Southwest Michigan Dr. Ron Goldy and Kyle Ferrantella, Southwest Michigan Research and Extension Center, 1791 Hillandale Road, Benton Harbor, Michigan 49022 goldy@msu.edu
More informationSpecialty Cantaloupe Variety Performance
Specialty Cantaloupe Variety Performance Petrus Langenhoven, Ph.D. Horticulture and Hydroponics Crops Specialist February 13, 2018 1 Outline of Presentation Background Materials and Methods Results Conclusion
More informationPERFORMANCE OF FOUR FORAGE TURNIP VARIETIES AT MADRAS, OREGON, J. Loren Nelson '
PERFORMANCE OF FOUR FORAGE TURNIP VARIETIES AT MADRAS, OREGON, 1986-1987 J. Loren Nelson ' ABSTRACT Forage turnips (cv. Purple Top, Rondo, Forage Star, Barive) were evaluated at the Madras site of the
More informationEvaluation of Jalapeno, Big Chili, Poblano, and Serrano Chili Pepper Cultivars in Central Missouri
Evaluation of Jalapeno, Big Chili, Poblano, and Serrano Chili Pepper Cultivars in Central Missouri Steven Kirk, Catherin Bohnert, and David Johnson Lincoln University Cooperative Extension-Commercial Vegetable
More informationFungicides for phoma control in winter oilseed rape
October 2016 Fungicides for phoma control in winter oilseed rape Summary of AHDB Cereals & Oilseeds fungicide project 2010-2014 (RD-2007-3457) and 2015-2016 (214-0006) While the Agriculture and Horticulture
More informationEvaluation of 15 Bell Pepper Cultivars in Southwest Michigan
Evaluation of 15 Bell Pepper Cultivars in Southwest Michigan Ron Goldy Southwest Michigan Research and Extension Center Benton Harbor, Michigan Objective To evaluate the performance of 15 bell pepper cultivars
More informationAWRI Refrigeration Demand Calculator
AWRI Refrigeration Demand Calculator Resources and expertise are readily available to wine producers to manage efficient refrigeration supply and plant capacity. However, efficient management of winery
More informationIs fruit dry matter concentration a useful predictor of Honeycrisp apple fruit quality after storage?
Is fruit dry matter concentration a useful predictor of Honeycrisp apple fruit quality after storage? T.L. Robinson 1, A.D. Rufato 2, L. Rufato 3 and L.I. Dominguez 1 1Dept. of Horticulture, NYSAES, Cornell
More informationEvaluation of Insect-Protected and Noninsect-Protected Supersweet Sweet Corn Cultivars for West Virginia 2014
Evaluation of Insect-Protected and Noninsect-Protected Supersweet Sweet Corn Cultivars for West Virginia 2014 Lewis W. Jett, David Workman, and Brian Sparks West Virginia University According to the 2012
More informationMaterials and Methods
Objective OREGON STATE UNIVERSITY SEED LABORATORY SUMMIT SEED COATINGS- Caldwell ID Final Report April 2010 Effect of various seed coating treatments on viability and vigor of two blends of Kentucky bluegrass
More informationRelation between Grape Wine Quality and Related Physicochemical Indexes
Research Journal of Applied Sciences, Engineering and Technology 5(4): 557-5577, 013 ISSN: 040-7459; e-issn: 040-7467 Maxwell Scientific Organization, 013 Submitted: October 1, 01 Accepted: December 03,
More informationColorado State University Viticulture and Enology. Grapevine Cold Hardiness
Colorado State University Viticulture and Enology Grapevine Cold Hardiness Grapevine cold hardiness is dependent on multiple independent variables such as variety and clone, shoot vigor, previous season
More informationFORAGE YIELD AND SOILBORNE MOSAIC VIRUS RESISTANCE OF SEVERAL VARIETIES OF RYE, TRITICALE, AND WHEAT
FORAGE YIELD AND SOILBORNE MOSAIC VIRUS RESISTANCE OF SEVERAL VARIETIES OF RYE, TRITICALE, AND WHEAT Scott Staggenborg, Robert Bowden, Brian Marsh, and Victor Martin* Winter annuals such as wheat, rye,
More informationSUGAR AND ACID METABOLISM IN CITRUS FRUIT. Karen E. Koch 1
SUGAR AND ACID METABOLISM IN CITRUS FRUIT Karen E. Koch 1 Two important horticultural questions in this area are: 1. What affects sugar levels in citrus fruit? 2. What affects acid levels in citrus fruit?
More informationFALL TO WINTER CRANBERRY PLANT HARDINESS
FALL TO WINTER CRANBERRY PLANT HARDINESS Beth Ann A. Workmaster and Jiwan P. Palta Department of Horticulture, University of Wisconsin-Madison Protection of cranberry plants from frost and freezing temperatures
More informationManagement of Croploadon Honeycrispto optimize fruit quality and return bloom
2009 Orchard and Vineyard Show MSHS Trust Management of Croploadon Honeycrispto optimize fruit quality and return bloom Jim Flore, Phil Schwallier, Paolo Sabbatini, and Lynne Sage, MSU Research supported
More information