Increasing the efficiency of forecasting winegrape yield by using information on spatial variability to select sample sites
|
|
- Lorin Horton
- 6 years ago
- Views:
Transcription
1 Increasing the efficiency of forecasting winegrape yield by using information on spatial variability to select sample sites Andrew Hall, Research Fellow, Spatial Science Leo Quirk, Viticulture Extension Officer Mark Wilson, Technical Officer Jim Hardie, Professor, Winegrowing Innovation NWGIC, Wagga Wagga Introduction Grower estimates of seasonal winegrape production can differ from winery deliveries by an average of 33%. The impact of this mismatch is high, not only for wineries, which spend considerable amounts of money on harvest preparation and logistics, but also for suppliers, who need to match inventory to demand, and for the seasonal negotiation of grape prices, for which accurate supply forecasts are needed. The collective cost of this uncertainty in grape supply volume to Australian wineries has been estimated at $200 million a year. Greater levels of accuracy in forecasting seasonal grapevine yield would obviously benefit wine producers and other sectors of the industry. An important cause of inaccuracy in yield forecasting is the spatial variability within vineyard blocks. The underlying cause of spatial variability in grapevine performance is often the inherently variable nature of soils particularly in terms of depth and water-holding capacity but it may also be topography or management practices, such as spatial variations in irrigation dripper rates. One yield-monitoring study of several regions of Australia found variation of up to 10 fold within Cabernet Sauvignon vineyards. For this reason, extensive sampling is needed to produce data that are representative of this variability within vineyards. Estimates of yield in vineyards presently rely on random or group sampling of vines and their developing grape bunches between budburst and harvest. The average of the factors used to calculate yield namely, bunch number and bunch weight per vine in the sample set is then multiplied by the number of vines in the block to produce the forecast for the whole block. Increasing the numbers of samples taken can improve the difference between the expected and actual yields, but this requires increased cost and effort. These impediments can be overcome by reducing the number of sampled vines by segregating the vine population into zones of known variation using precision technologies such as electromagnetic (EM) surveying of soil conditions, aerial remote sensing of vine canopies, or harvest yield monitoring. The yield forecast study We now have some preliminary results from a study that is investigating the benefits of using spatial information to reduce the number of samples needed to describe the
2 variability of yield within a vineyard block and hence reduce the sampling time taken to obtain accurate estimates of yield. The study uses two trial sites, one in the Hunter Valley and the other in the Riverina, both comprising mature (more than 10 years old) Shiraz grapevines. On both blocks, 54 sample sites are hand-harvested within a week before the blocks are commercially harvested. The total fruit weight at each site is recorded. The variability of the Hunter Valley site was initially mapped by an EM-38 soil survey conducted while the soil profile was relatively moist (Figure 1). Geographic information system software was then used to split the block into three zones of equal variability. Each of these three zones was further divided into six sub-zones. Three grapevines were selected from within each of the sub-zones to give 54 sample sites. Figure 1 (a) EM-38 soil survey of Hunter Valley vineyard site. (b) Three-zone map made from the EM-38 data. (c) Eighteen-subzone map, showing the 54 sample sites selected (three within each subzone). The Riverina site has 54 sample sites that are categorised in a similar way, but the sample sites change because they are selected each season from canopy vigour data derived from remote-sensing images taken of the site (Figure 2). Each grapevine is individually described using a computer program and ranked by canopy vigour. Sample grapevines are then selected at intervals on the ranked list of grapevines to best characterise the overall variability of the block. Each grapevine in the Riverina trial is placed into categories that are equivalent to the Hunter Valley site s zone and subzone designations.
3 Figure 2 The Riverina site. This close-up of the remotely sensed image of the vineyard contains computer-generated vine-location information. NVDI, normalised difference vegetation index A computer simulation is then used to calculate the potential error of making yield estimates with fewer sample sites. The simulation selects different sub-sets of samples incorporating rules that take into account the variability of the site. The number of randomly selected samples required to achieve the equivalent potential error were then calculated using an established method. Results of the study so far In the first year of the trial, the yield forecasts that we obtained by multiplying the yields from the hand-harvested samples by the total block row length were far greater than the machine-harvested totals, so it was clear that an adjustment had to be made for the difference between hand- and machine-harvesting. In the second year, when a multiplier factor was used to take this difference into account, we obtained more accurate forecasts for both blocks: 6.4% and 4.6% greater than the actual yields for the Riverina and Hunter Valley sites, respectively. Using all 54 sample vines produced a similar level of accuracy at both sites, which is an encouraging result to date. However, more seasons of data collection are required before we can be confident that the method of selecting the 54 sample vines and the annual modification multiplier are reliable. To achieve the same level of potential error in an estimate, the number of random samples required is consistently greater than the equivalent number of samples selected by using spatial information. For example, the four instances of yield forecasts using nine sample sites that were selected by incorporating spatial knowledge produced potential errors equivalent to those with a sampling technique
4 that would have needed to use 17, 33, 33 and 13 randomly selected sites. This represents a significant gain in estimation accuracy if the same number of samples is used, or in sampling efficiency, allowing fewer samples to be collected to achieve the same level of potential error. It should be noted that the simulations using nine sample sites selected with the aid of spatial information still produced potential errors of ±10% to ±23%. To achieve estimates with potential errors of about ±5% requires 36 sample sites selected with the aid of spatial information. Take-home messages (1) Our early results show that, compared with random sampling, use of EM-38 soil electrical conductivity maps (used on the Hunter Valley block) or remotesensing imagery (used on the Riverina block) significantly increases the accuracy of yield estimation. Using the same number of samples selected using spatial data increases estimation accuracy over simple random site selection. Alternatively, fewer samples can be used to achieve the same level of accuracy. (2) A multiplication factor is required to take into account differences between estimates based on mean yield of sample vines multiplied by total vineyard area and the actual machine harvested yield. Using multiplication factors generated from the previous year s data, overall estimation accuracy was reduced to about ±5%. (3) The greater the spatial variability in yield, the greater the number of samples that is needed to get accurate yield forecasts. The high level of spatial variability typical of single vineyard blocks (including those used in this study) resulted in large potential errors in the estimates of yield, in the region of ±10% to 25%, using nine sample sites selected with the aid of spatial information describing the block variability. Acknowledgments This study is supported by the Wine Growing Futures Program. Project assisted by Charles Sturt University s Spatial Data Analysis Network (CSU-SPAN), David Lamb, John Hornbuckle, Rod Muldune, Wyndham Estate Wines, and Hancock Farm Company. References and further reading Bramley R.G.V., Hamilton R.P. (2004). Understanding variability in winegrape production systems 1. Within vineyard variation in yield over several vintages. Australian Journal of Grape and Wine Research 10:
5 Clingeleffer P.R., Dunn G., Krstic M., Martin S. (2001). Crop Development, Crop Estimation and Crop Control to Secure Quality and Production of Major Wine Grape Varieties: A National Approach. Grape and Wine Research and Development Corporation, Wayville, SA. Dunn G.M., Martin S.R. (1998). Optimising vineyard sampling to estimate yield components. The Australian Grapegrower & Winemaker 414a: Dunn G.M., Martin S.R. (2003). The current status of crop forecasting in the Australian wine industry. In Bell S.M., De Garis K.A., Dundon C.G., Hamilton R.P., Partridge S.J., Wall G.S. (eds.) Proceedings, ASVO Seminar Series: Grapegrowing at the Edge. Tanunda, South Australia, Australian Society of Viticulture and Oenology, Adelaide, SA. Hall A., Louis J., Lamb D. (2003). Characterising and mapping vineyard canopy using high-spatial-resolution aerial multispectral images. Computers & Geosciences 29: Martin S., Dunstone R., Dunn G. (2003). How to Forecast Winegrape Deliveries. Department of Primary Industries, Tatura, Victoria. Wolpert J.A., Vilas E.P. (1992). Estimating vineyard yields: introduction to a simple, two-step method. American Journal of Enology and Viticulture 43:
Yield prediction any closer to getting it right?
Yield prediction any closer to getting it right? Associate Professor Gregory Dunn Research Leader (Viticulture), NSW DPI Deputy Director, National Wine and Grape Industry Centre June 22 nd 2016 www.nwgic.org
More informationFleurieu zone (other)
Fleurieu zone (other) Incorporating Southern Fleurieu and Kangaroo Island wine regions, as well as the remainder of the Fleurieu zone outside all GI regions Regional summary report 2006 South Australian
More informationCoonawarra COONAWARRA VINTAGE OVERVIEW. Vintage Report. Overview of vintage statistics
South Australia Coonawarra COONAWARRA VINTAGE OVERVIEW Victoria Vintage Report The 2005 vintage will be remembered as comparatively compact with average to slightly below average yields and warm dry conditions
More informationAdelaide Plains Wine Region
SA Winegrape Crush Survey Regional Summary Report 2017 Adelaide Plains Wine Region Adelaide Plains Vintage overview OVERVIEW OF VINTAGE STATISTICS A total of 3,496 tonnes of Adelaide Plains winegrapes
More information1. Continuing the development and validation of mobile sensors. 3. Identifying and establishing variable rate management field trials
Project Overview The overall goal of this project is to deliver the tools, techniques, and information for spatial data driven variable rate management in commercial vineyards. Identified 2016 Needs: 1.
More informationAdelaide Hills Wine Region
SA Winegrape Crush Survey Regional Summary Report 2017 Adelaide Hills Wine Region Adelaide Hills Vintage overview VINTAGE REPORT The annual rainfall in 2016 (1240mm at Lenswood) was the highest in the
More informationGeographic Information Systemystem
Agenda Time 9:00:-9:20 9-20 9:50 9:50 10:00 Topic Intro to GIS/Mapping and GPS Applications for GIS in Vineyards Break Presenter Kelly Bobbitt, Mike Bobbitt and Associates Kelly Bobbitt, Mike Bobbitt and
More informationSA Winegrape Crush Survey Regional Summary Report 2017 South Australia - other
SA Winegrape Crush Survey Regional Summary Report 2017 South Australia - other Vintage overview South Australia (other) includes the GI region of Southern Flinders Ranges, the Peninsulas zone, and the
More informationNational Vintage Report 2017
Wine Australia for Australian Wine At a glance summary Crush grew by 5 per cent to 1.93 million tonnes The total estimated value of the Australian winegrape crush is $1.22 billion an increase of 13 per
More informationDevelopment of smoke taint risk management tools for vignerons and land managers
Development of smoke taint risk management tools for vignerons and land managers Glynn Ward, Kristen Brodison, Michael Airey, Art Diggle, Michael Saam-Renton, Andrew Taylor, Diana Fisher, Drew Haswell
More informationState summary OVERVIEW OF VINTAGE STATISTICS State and regional overview. Source of fruit. Projections of future supply and demand
State summary OVERVIEW OF VINTAGE STATISTICS 2001 State and regional overview The total crush of South Australian winegrapes in 2001 was 678,821 tonnes. This compares with 482,157 tonnes in 2000 an increase
More informationGrowing Cabernet Sauvignon at Wynns Coonawarra Estate
Growing Cabernet Sauvignon at Wynns Coonawarra Estate The influence of vintage, clones and site Ben Harris Vineyard Manager Wynns Coonawarra Estate Coonawarra Red and White Winegrape Varieties Red (90%)
More informationCoonawarra Wine Region. Regional summary report WINEGRAPE UTILISATION AND PRICING SURVEY 2007
Coonawarra Wine Region Regional summary report 2007 WINEGRAPE UTILISATION AND PRICING SURVEY 2007 45 46 Coonawarra Vintage overview Vintage report A low yielding vintage, with warm ripening conditions,
More informationHow to forecast. wine grape deliveries. Using Grape Forecaster
How to forecast wine grape deliveries Using Grape Forecaster How to Forecast Wine Grape Deliveries using Grape Forecaster Department of Primary Industries 2003 Authors Stephen Martin, Rebecca Dunstone
More informationWorld of Wine: From Grape to Glass Syllabus
World of Wine: From Grape to Glass Syllabus COURSE OVERVIEW Have you always wanted to know more about how grapes are grown and wine is made? Perhaps you like a specific wine, but can t pinpoint the reason
More informationBig Data and the Productivity Challenge for Wine Grapes. Nick Dokoozlian Agricultural Outlook Forum February
Big Data and the Productivity Challenge for Wine Grapes Nick Dokoozlian Agricultural Outlook Forum February 2016 0 Big Data and the Productivity Challenge for Wine Grapes Outline Current production challenges
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 informationAirborne Remote Sensing for Precision Viticulture in Niagara. Ralph Brown School of Engineering University of Guelph
Airborne Remote Sensing for Precision Viticulture in Niagara Ralph Brown School of Engineering University of Guelph Why the interest in precision viticulture? Highly variable regions in Niagara due to
More informationLanghorne Creek Wine Region
SA Winegrape Crush Survey Regional Summary Report 2017 Langhorne Creek Wine Region Vintage overview VINTAGE REPORT The Langhorne Creek wine region experienced a long, slow vintage in 2017, beginning with
More informationA Method For Extracting Detailed Information From High Resolution Multispectral Images Of Vineyards
A Method For Extracting Detailed Information From High Resolution Multispectral Images Of Vineyards Andrew Hall* 1,2 ; John Louis 1,2 ; David Lamb 1,2 1 Cooperative Research Centre for Viticulture, PO
More informationArchival copy. For current information, see the OSU Extension Catalog: https://catalog.extension.oregonstate.edu/em9070
EM 9070 June 2013 How to Measure Grapevine Leaf Area Patricia A. Skinkis and R. Paul Schreiner Figure 1. A leaf area template can be easily made using typical office supplies. The template, above, is being
More informationWashington Wine Commission: Wine industry grows its research commitment
PROGRESS EDITION MARCH 22, 2016 10:33 PM Washington Wine Commission: Wine industry grows its research commitment HIGHLIGHTS New WSU Wine Science Center a significant step up for industry Development of
More informationPadthaway PADTHAWAY VINTAGE OVERVIEW
Padthaway 82 PADTHAWAY VINTAGE OVERVIEW Vintage Report 2003 was another trouble-free year, with the exception of some splitting, reinforcing that Padthaway is an ideal climate for premium grape production.
More informationWorld of Wine: From Grape to Glass
World of Wine: From Grape to Glass Course Details No Prerequisites Required Course Dates Start Date: th 18 August 2016 0:00 AM UTC End Date: st 31 December 2018 0:00 AM UTC Time Commitment Between 2 to
More informationSA Winegrape Crush Survey Regional Summary Report Barossa Valley Wine Region (including Barossa Zone - other)
SA Winegrape Crush Survey Regional Summary Report 2016 Barossa Valley Wine Region (including Barossa Zone - other) Explanations and Definitions INTAKE (CURRENT VINTAGE) DATA Definition of regions Regions
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 informationTreating vines after hail: Trial results. Bob Emmett, Research Plant Pathologist
Treating vines after hail: Trial results Bob Emmett, Research Plant Pathologist Treating vines after hail: Trial results Overview Hail damage recovery pruning trial Background and trial objectives Post-hail
More informationOptimising harvest date through use of an integrated grape compositional and sensory model
Optimising harvest date through use of an integrated grape compositional and sensory model Alain DELOIRE, Katja ŠUKLJE, Guillaume ANTALICK, Campbell MEEKS, John W. BLACKMAN & Leigh M. SCHMIDTKE National
More informationBarossa Valley BAROSSA VALLEY VINTAGE OVERVIEW. Vintage report. Overview of vintage statistics
Barossa Valley 34 BAROSSA VALLEY VINTAGE OVERVIEW Greenock Tanunda Nuriootpa Angaston Truro Vintage report Season 2002/03 was a mixed bag of hot dry conditions, dominated by a single heavy rainfall event
More informationBarossa Valley BAROSSA VALLEY VINTAGE OVERVIEW. Vintage report. Overview of vintage statistics
Barossa Valley 34 BAROSSA VALLEY VINTAGE OVERVIEW Vintage report Turo A heavy fruitset initially had predictions for high yields in the Barossa, but bunch thinning aound veraison brought crop levels back
More informationOUTLINE Plan of the talk. Introduction Vineyards are variable in space The efficient vineyard project. The field site in Sonoma Results
UCCE Sonoma County Grape Day February 8, 2017 Assessing variability in the vineyard through a spatially explicit selective-harvest approach A case study in Sonoma L. Brillante, A. Beebee, R. Yu, J. Martinez,
More informationVineyard Cash Flows Tremain Hatch
Vineyard Cash Flows Tremain Hatch thatch@vt.edu New grape growers Contemplating retirement or other transitions and considering viticulture and winemaking Alternative crop to existing farm operation Questions
More informationPractical Aspects of Crop Load and Canopy Management
Practical Aspects of Crop Load and Canopy Management Jim Wolpert Extension Viticulturist Department of Viticulture and Enology University of California, Davis Penn State Grape Day August 10, 2011 Presentation
More informationCut the cost of coffee in an instant
Case Study Cut the cost of coffee in an instant If you produce instant coffee you could cut packaging costs by more than 20% by moving to Best in Class packaging weights. That s the conclusion of WRAP
More informationFact Sheet VITICULTURE
Assessing soil health in a vineyard Fact Sheet Introduction As grape and wine producers become more concerned about the long-term sustainability of their vineyards and winemaking businesses, an interest
More informationGrape Growers of Ontario Developing key measures to critically look at the grape and wine industry
Grape Growers of Ontario Developing key measures to critically look at the grape and wine industry March 2012 Background and scope of the project Background The Grape Growers of Ontario GGO is looking
More informationWrattonbully WRATTONBULLY VINTAGE OVERVIEW. WRATTONBULLY PRICE AND BAUME DATA - VINTAGE 2002 Table See map of Wrattonbully GI on page 104.
Wrattonbully WRATTONBULLY VINTAGE OVERVIEW Vintage report The spring patterns this year have been as wet as we have seen for a decade, soil moisture profiles at the end of winter were full, and frosts
More informationSA Winegrape Crush Survey Regional Summary Report Adelaide Hills Wine Region
SA Winegrape Crush Survey Regional Summary Report - 2013 Adelaide Hills Wine Region Adelaide Hills Vintage overview Vintage report Leading into September, the Adelaide Hills experienced near average winter
More informationBVM PROSPECTUS. DAMIAN ADAMS Ph E MIKE CROAD Ph E
BVM PROSPECTUS Berakah Vineyard Management is a market leader in all aspects of vineyard operations, from vineyard establishment through to cost-leading vineyard management and wine company relationship
More informationExpressions of Interest:
Expressions of Interest: Independent Industry Membership of the National Wine and Grape Industry Centre (NWGIC) Board Expressions of interest are invited for membership of the National Wine and Grape Industry
More informationClare Valley Wine Region
SA Winegrape Crush Survey Regional Summary Report 2017 Clare Valley Wine Region Vintage overview VINTAGE REPORT The vintage kicked off in the last week in February in the early subregions and in earnest
More informationMurray Darling & Swan Hill Wine Grape Crush Report 2016 Vintage
Murray Darling & Swan Hill Wine Grape Crush Report 2016 Vintage Table of contents Murray-Darling Swan Hill GI wine regions 3 Survey Data Methodology and Definitions 4 Section 1: Summary Data & Yearly Trends....
More informationAustralian wine: Production, sales and inventory
Wine Australia providing insights on Australian Wine Australian wine: Production, sales and inventory 2016 17 January 2018 Key takeaways The 2017 vintage saw historically high production for the second
More informationMonterey County Ranch Johnson Canyon Road Gonzales, CA Acres
Monterey County Ranch 31701 Johnson Canyon Road Gonzales, CA 523.15 Acres Introduction Located in California s Central Coast in the heart of the Salinas Valley lies the Gallo family s Monterey County Ranch.
More informationEstimating and Adjusting Crop Weight in Finger Lakes Vineyards
Estimating and Adjusting Crop Weight in Finger Lakes yards (Material handed out at a Finger Lakes grower twilight meeting July, 2001) Copyright 2001 Robert Pool Reviewed by Jodi Creasap Gee, 2011 Why estimate
More informationAdelaide Hills Wine Region. Regional summary report WINEGRAPE UTILISATION AND PRICING SURVEY 2007
Adelaide Hills Wine Region Regional summary report 2007 WINEGRAPE UTILISATION AND PRICING SURVEY 2007 21 22 Adelaide Hills Vintage overview Vintage report The 2006/2007 season will long be remembered by
More informationINVESTIGATIONS INTO THE RELATIONSHIPS OF STRESS AND LEAF HEALTH OF THE GRAPEVINE (VITIS VINIFERA L.) ON GRAPE AND WINE QUALITIES
INVESTIGATIONS INTO THE RELATIONSHIPS OF STRESS AND LEAF HEALTH OF THE GRAPEVINE (VITIS VINIFERA L.) ON GRAPE AND WINE QUALITIES by Reuben Wells BAgrSc (Hons) Submitted in fulfilment of the requirements
More informationMcLaren Vale wine region. Regional summary report WINEGRAPE UTILISATION AND PRICING SURVEY 2007
McLaren Vale wine region Regional summary report 2007 WINEGRAPE UTILISATION AND PRICING SURVEY 2007 79 80 McLaren Vale Vintage overview Vintage report A dry winter, followed by a dry spring, saw a reduction
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 informationRiverland RIVERLAND VINTAGE OVERVIEW 1 SA UTILISATION AND PRICING SURVEY Vintage Report. Overview of vintage statistics
Riverland RIVERLAND VINTAGE OVERVIEW Vintage Report If any year can be described as perfect, 2002 would have been it weatherwise. A good long cool period with no heat shocks for ripening led to large crops
More informationBuying Filberts On a Sample Basis
E 55 m ^7q Buying Filberts On a Sample Basis Special Report 279 September 1969 Cooperative Extension Service c, 789/0 ite IP") 0, i mi 1910 S R e, `g,,ttsoliktill:torvti EARs srin ITQ, E,6
More informationFACTORS DETERMINING UNITED STATES IMPORTS OF COFFEE
12 November 1953 FACTORS DETERMINING UNITED STATES IMPORTS OF COFFEE The present paper is the first in a series which will offer analyses of the factors that account for the imports into the United States
More informationVineyards in New Zealand
Vineyards in New Zealand 36,192 Ha (28,231 white, 7960 red) -Sauvignon blanc 21016 Ha (58%) Average vineyard size 17.4 Ha Most planted on ancient riverbeds with well drained soils Almost all are irrigated
More informationMcLaren Vale Wine Region
SA Winegrape Crush Survey Regional Summary Report 2017 McLaren Vale Wine Region Vintage overview VINTAGE REPORT Vintage 2017 in the McLaren Vale Wine Region was judged highly successful for both grape
More informationTechnical Memorandum: Economic Impact of the Tutankhamun and the Golden Age of the Pharoahs Exhibition
Technical Memorandum: Economic Impact of the Tutankhamun and the Golden Age of the Pharoahs Exhibition Prepared for: The Franklin Institute Science Museum Prepared by: Urban Partners November 2007 Economic
More informationThe Economic Impact of Wine and Grapes in Lodi 2009
The Economic Impact of Wine and Grapes in Lodi 2009 Prepared for the Lodi District Grape Growers Association and the Lodi Winegrape Commission May 2009 A S T O N E B R I D G E R E S E A R C H R E P O R
More informationCurrent and Future Technologies for Wine Grape Crop Estimation
Current and Future Technologies for Wine Grape Crop Estimation Luis Sanchez E&J Gallo Winery 16th Annual Enology & Viticulture Conference & Tradeshow Penticton, BC / July 20, 2015 Vineyard Yield Forecasting
More informationVineyard variability in Marlborough, New Zealand: Characterising spatial and temporal changes in fruit composition and juice quality in the vineyard
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 17 19 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 Vineyard variability in Marlborough, New Zealand: Characterising spatial and temporal
More informationStrategies for reducing alcohol concentration in wine
Strategies for reducing alcohol concentration in wine Cristian Varela Senior Research Scientist Alcohol in Australian wine 2014 2005 Average 13.6% 14.5% Ethanol Godden et al. 2015 Why is alcohol increasing?
More informationTemperature effect on pollen germination/tube growth in apple pistils
FINAL PROJECT REPORT Project Title: Temperature effect on pollen germination/tube growth in apple pistils PI: Dr. Keith Yoder Co-PI(): Dr. Rongcai Yuan Organization: Va. Tech Organization: Va. Tech Telephone/email:
More informationDONOR PROSPECTUS March 2017
DONOR PROSPECTUS March 2017 Barons of Barossa Inc. 8 Sturt Street ANGASTON SA 4343 ABN 37 820 572 699 Donor Prospectus Introduction Your generous donations are essential to the success of. We have developed
More informationEnvironmental Monitoring for Optimized Production in Wineries
Environmental Monitoring for Optimized Production in Wineries Mounzer SALEH Applications Engineer Agenda The Winemaking Process What Makes a great a Wine? Main challenges and constraints Using Technology
More informationLate season leaf health CORRELATION OF VINEYARD IMAGERY WITH PINOT NOIR YIELD AND VIGOUR AND FRUIT AND WINE COMPOSITION. 6/22/2010
// Not all vineyard blocks are uniform This is because of soil variation primarily, especially in factors which affect the supply of water This has a direct effect on vine vigour, which in turn has a direct
More informationThe Implications of Climate Change for the Ontario Wine Industry
The Implications of Climate Change for the Ontario Wine Industry Tony B. Shaw Department of Geography and Cool Climate Oenology and Viticulture Institute Brock University Climate Change Most scientists
More informationSouth Australia other Regional summary report 2009
South Australia other Regional summary report 2009 South Australia (other) Vintage overview South Australia (other) includes the GI region of Southern Flinders Ranges, the Peninsulas zone, and the vineyards
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 informationFind the wine you are looking for at the best prices.
Media Kit 2017 Wine-Searcher Find the wine you are looking for at the best prices. Wine-Searcher is dedicated to finding and pricing wine. Thanks to some seriously smart tech, Wine-Searcher brings the
More informationHow LWIN helped to transform operations at LCB Vinothèque
How LWIN helped to transform operations at LCB Vinothèque Since 2015, a set of simple 11-digit codes has helped a fine wine warehouse dramatically increase efficiency and has given access to accurate valuations
More informationEden Valley Wine Region. Regional summary report WINEGRAPE UTILISATION AND PRICING SURVEY 2007
Eden Valley Wine Region Regional summary report 2007 WINEGRAPE UTILISATION AND PRICING SURVEY 2007 57 58 Eden Valley Vintage overview Vintage report Average winter rainfall for the Eden Valley region is
More informationFlowering 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 informationChardonnay Winemaking insights in Margaret River. Glenn Goodall
Chardonnay Winemaking insights in Margaret River Glenn Goodall Chardonnay in Margaret River The History The Terroir Clonal selection dominance of Gingin. Chardonnay and the Regional paradox?... Chardonnay
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 informationWine On-Premise UK 2018
Wine On-Premise UK 2018 T H E M E N U Introduction... Page 5 The UK s Best On-Premise Distributors... Page 7 The UK s Most Listed Wine Brands... Page 17 The Big Picture... Page 26 The Style Mix... Page
More informationARIMNet2 Young Researchers Seminar
ARIMNet2 Young Researchers Seminar How to better involve end-users throughout the research process to foster innovation-driven research for a sustainable Mediterranean agriculture at the farm and local
More informationScientific Research and Experimental Development (SR&ED) Tax Credit
Scientific Research and Experimental Development (SR&ED) Tax Credit David Spicer, LLB, CA - BDO Dunwoody LLP Melanie Thomson, BSc, Dip.AIT - BDO Dunwoody LLP BC Wine Grape Council 10 th Annual Enology
More informationVintage Report At a glance. Total crush in Australia past 10 years
Vintage Report 2016 t a glance rush up by 6 per cent to an estimated 1.81 million tonnes rush in warm irrigated regions down 0.6 per cent and cool/temperate regions up 26 per cent Red crush increased its
More informationYield Comparisons of Bt and Non-Bt Corn Hybrids in Missouri in 1999
Integrated Pest & Crop Management Newsletter University of Missouri-Columbia Vol. 9, No. 22 Article 2 of 5 December 17, 1999 Yield Comparisons of Bt and Non-Bt Corn Hybrids in Missouri in 1999 Full-season
More informationWine Grape Crush Survey
DEPARTMENT OF PRIMARY INDUSTRIES Wine Grape Crush Survey 2009 Murray Darling / Swan Hill ACKNOWLEDGEMENTS The information contained in this survey was collected, analysed and published by Department of
More informationUsing tractor mounted optical sensors to assess grapevine canopy decline
Using tractor mounted optical sensors to assess grapevine canopy decline Kerry DeGaris 1,2, Mark Sosnowski 3, Pete Balnaves 1,4 and Catherine Kidman 1,2 1 Limestone Coast Grape and Wine Technical Council
More informationMischa Bassett F&N 453. Individual Project. Effect of Various Butters on the Physical Properties of Biscuits. November 20, 2006
Mischa Bassett F&N 453 Individual Project Effect of Various Butters on the Physical Properties of Biscuits November 2, 26 2 Title Effect of various butters on the physical properties of biscuits Abstract
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 informationHarvesting Soybean. Soybean Loss. John Nowatzki Extension Agricultural Machine Systems Specialist
Harvesting Soybean John Nowatzki Extension Agricultural Machine Systems Specialist Field studies in soybean harvesting have shown that a 10 percent or higher harvest loss is not uncommon, but studies also
More informationWine On-Premise UK 2016
Wine On-Premise UK 2016 T H E M E N U Introduction... Page 5 The UK s Best On-Premise Distributors... Page 7 The UK s Most Listed Wine Brands... Page 17 The Big Picture... Page 26 The Style Mix... Page
More information2016 STATUS SUMMARY VINEYARDS AND WINERIES OF MINNESOTA
IN PARTNERSHIP WITH THE NORTHERN GRAPES PROJECT, AN USDA SPECIALITY CROPS RESEARCH INITIATIVE PROGRAM, NIFA 2016 STATUS SUMMARY VINEYARDS AND WINERIES OF MINNESOTA Brigid Tuck and William Gartner INTRODUCTION
More informationGrowing high quality Shiraz in the Barossa
Growing high quality Shiraz in the Barossa Chris Rogers St Hallett Wines The Barossa first vineyards planted around 1842 Barossa zone ~169,000 hectares 1 13,655 hectares total vineyard, 7140 hectares of
More informationA.P. Environmental Science. Partners. Mark and Recapture Lab addi. Estimating Population Size
Name A.P. Environmental Science Date Mr. Romano Partners Mark and Recapture Lab addi Estimating Population Size Problem: How can the population size of a mobile organism be measured? Introduction: One
More informationCauses and Prevention of Thompson Seedless Berry Collapse
Causes and Prevention of Thompson Seedless Berry Collapse Davinder Singh, Michael Treeby, Kristen, Pitt and Peter Clingeleffer 7 th International Table Grape Symposium, November 2014 CSIRO AGRICULTURE
More informationMastering Measurements
Food Explorations Lab I: Mastering Measurements STUDENT LAB INVESTIGATIONS Name: Lab Overview During this investigation, you will be asked to measure substances using household measurement tools and scientific
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 information2011 Regional Wine Grape Marketing and Price Outlook
Center for Crop Diversification Survey CCD-SV-1 2011 Regional Wine Grape Marketing and Price Outlook Timothy Woods and Matthew Ernst Dr. Woods is an Extension Professor at the University of Kentucky. Mr.
More informationMonthly Economic Letter
Monthly Economic Letter Cotton Market Fundamentals & Price Outlook RECENT PRICE MOVEMENT After falling in the days surrounding the release of last month s USDA report, NY futures and the A Index were mostly
More informationRiverland RIVERLAND VINTAGE OVERVIEW. Vintage Report. Overview of vintage statistics
Riverland RIVERLAND VINTAGE OVERVIEW Vintage Report Overview of vintage statistics The 2005 growing season was almost perfect in the Riverland. Although there were rain events in both December and January,
More informationCoffee weather report November 10, 2017.
Coffee weather report November 10, 2017. awhere, Inc., an agricultural intelligence company, is pleased to provide this map-and-chart heavy report focused on the current coffee crop in Brazil. Global stocks
More informationMultiple Imputation for Missing Data in KLoSA
Multiple Imputation for Missing Data in KLoSA Juwon Song Korea University and UCLA Contents 1. Missing Data and Missing Data Mechanisms 2. Imputation 3. Missing Data and Multiple Imputation in Baseline
More informationMarch 2017 DATA-DRIVEN INSIGHTS FOR VINEYARDS
March 2017 DATA-DRIVEN INSIGHTS FOR VINEYARDS What do great wine, water on mars and drones have in common? Today: Drone Technologies in Viticulture AGENDA Technology Context: big data, precision ag, drones
More informationDo lower yields on the vine always make for better wine?
Grape and wine quality Increasing quality Do lower yields on the vine always make for better wine? Nick Dokoozlian Viticulture, & Enology E&J Gallo ry Do lower yields on the vine always make for better
More informationClimate effects on grape production and quality at Kumeu, New Zealand
20th International Congress on Modelling and Simulation, Adelaide, Australia, 1 6 December 2013 www.mssanz.org.au/modsim2013 Climate effects on grape production and quality at Kumeu, New Zealand S Shanmuganathan
More informationOF THE VARIOUS DECIDUOUS and
(9) PLAXICO, JAMES S. 1955. PROBLEMS OF FACTOR-PRODUCT AGGRE- GATION IN COBB-DOUGLAS VALUE PRODUCTIVITY ANALYSIS. JOUR. FARM ECON. 37: 644-675, ILLUS. (10) SCHICKELE, RAINER. 1941. EFFECT OF TENURE SYSTEMS
More informationGrapevine flowering of the Marlborough Region: Sauvignon blanc
Grapevine flowering of the Marlborough Region: Sauvignon blanc Amber K. PARKER, Tobias SCHULMANN, Andrew STURMAN, Robert AGNEW, Peyman ZAWAR-REZA, Marwan KATURJI, Eila GENDIG and Michael TROUGHT Aim To
More informationThe 2006 Economic Impact of Nebraska Wineries and Grape Growers
A Bureau of Business Economic Impact Analysis From the University of Nebraska Lincoln The 2006 Economic Impact of Nebraska Wineries and Grape Growers Dr. Eric Thompson Seth Freudenburg Prepared for The
More information