THE UNIVERSITY OF TRINIDAD & TOBAGO

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1 THE UNIVERSITY OF TRINIDAD & TOBAGO FINAL ASSESSMENT/EXAMINATIONS APRIL 2011 Course Code and Title: Programme: Date and Time: STUDENT ID Number: Miscellaneous Crops Diploma in Agriculture Friday 15 th April :00 p.m. 4:00 p.m. Duration: 3 hours PLEASE READ ALL INSTRUCTIONS CAREFULLY BEFORE YOU BEGIN THIS EXAMINATION Instructions to Candidates 1. This paper has 9 pages. 2. You are required to answer all questions in Section A. 3. You are required to answer all questions in Section B. 4. You are required to answer one question in Section C. 5. You must return the question paper along with your answer booklet to and other writing paper to the Invigilator at the end of the assessment/examination. Key Examination Protocol 1. Students please note that academic dishonesty (or cheating) includes but is not limited to plagiarism, collusion, falsification, replication, taking unauthorised notes or devices into an examination, obtaining an unauthorised copy of the examination paper, communicating or trying to communicate with another candidate during the examination, and being a party to impersonation in relation to an examination. 2. The above mentioned and any other actions which compromise the integrity of the academic valuation process will be fully investigated and addressed in accordance with UTT s academic regulations. 3. Please be reminded that speaking without the Invigilator s permission is NOT allowed. The University of Trinidad & Tobago Page 1 of 9

2 SECTION A - Multiple Choice (30 marks) Answer all questions in this section. 1. Some important varieties of Mango in the Caribbean are: a. Graham, Pink Lady, Kandahar b. Kandahar, Smooth Cayenne, Vert c. Vert, Rose, Kandahar d. Noel s Special, Kandahar, Pink Lady 2. Mango belongs to the Family: a. Malvaceae b. Anonaceae c. Mangiferaceae d. Anacardiaceae 3. Which of the following variety is the best used as rootstock for grafting of Mango: a. Julie Mango b. Rose Mango c. Starch Mango d. Buxton Spice Mango 4. Breadfruit was introduced into the Caribbean by: a. Christopher Columbus b. Sir Walter Raleigh c. Winston Churchill d. Captain William Bligh 5. Breadfruit can be best stored at: a. Temperature of 12ºC b. Temperature of 5 ºC -10ºC c. Temperature of 15 ºC -18ºC d. Temperature of 20ºC 6. The seeded variety of Breadfruit is: a. Atorcarpus altilis b. Artocarpus nobilis c. Atocarpus nobilis d. Artocarpus altilis 7. Purple Passion Fruit has a: a. More acidic flavour and rounded in shape b. Pleasant acidic flavour with a moderately strong vine c. Pleasant acidic flavour with a more vigorous and productive vine d. Pleasant acidic flavour and tolerant to many soil borne diseases The University of Trinidad & Tobago Page 2 of 9

3 8. Flowers of the Yellow Passion Fruit: a. Opens in the afternoon and closes at night b. Opens in the afternoon and closes the following day c. Opens early in the morning and closes before noon d. Opens early in the morning and closes at night 9. Which one of the following is not an advantage of pruning in passion fruit: a. Increase fruit yield b. Increase number of vines c. Increase aeration d. Decrease in diseases 10. Thecla basilides is a major pest of a. Pineapple b. Mango c. Papaya d. Passion Fruit 11. Pineapple Fruits are ready to be harvested: a. 7-9 months after flower induction b months after flower induction c. 5-6 months after flower induction d months after flower induction 12. Slips of Pineapple plants are: a. Cluster of leaves at the top of the fruit b. Plants produced at the base of the mother plant originating from leaf axils c. Cluster of leaves found at the base of the fruit d. Plants produced at the base of the fruit and on the flower stalk of the fruit 13. A deficiency in potassium in pineapple plants would result in: a. A bigger fruit b. Decrease in Brix level c. Increase in slip production d. Increase in photosynthesis 14. Hyvar X is used in Pineapple production. Hyvar X is: a. A weedicide b. A fungicide c. A chemical used to artificially induce flowering d. A propagating material The University of Trinidad & Tobago Page 3 of 9

4 16. The main purpose of Precooling Pineapple fruits are: a. To cool fruits in the field prior to harvest b. To remove field heat immediately after harvest c. To cool fruits to a temperature of 5ºC d. All of the above 17. Some popular varieties of Papaya are: a. Black Antigua, Santa Cruz Giant, Pink Lady b. Kent. Black Antigua, Solo c. Solo, Tainung, Kent d. Tainung, Pink Lady, Santa Cruz Giant 18. Symptoms of Bunchy Top Disease of Papaya plants are: a. Oily streaks that appear on leaf stalks and stems and yellowing of leaves b. Leaves roll inwards c. Ring spots appear on stems, leaf stalks and fruits d. Premature dropping of fruits 19. The sex type of the Papaya plant determines: a. Fruit Quality b. Fruit Shape c. Fruit Maturity d. Fruit Size 20. Cat Face in Papaya Fruits is most likely due to: a. Variations in environmental conditions b. Insect attack c. Improper use of weedicides d. Poor planting material 21. Papaya Ring Spot Virus in Papaya is spread by: a. Leafhoppers b. Aphids c. Thrips d. Ants 22. The Dwarf Type Coconut is: a. Cross pollinated b. Matures in 5-7 years c. Self pollinated d. Used mainly for Copra The University of Trinidad & Tobago Page 4 of 9

5 23. The Malayan Dwarf Type Variety of Coconut is: a. Resistant to Red Ring Disease b. Susceptible to Lethal Yellowing c. Resistant to Bud Rot d. Resistant to Lethal Yellowing 24. Copra is also known as: a. The coir b. The mesocarp c. The milk d. The endosperm 25. Ginger belongs to the Family: a. Caricaceae b. Zingerberaceae c. Moraceae d. Sapotaceae 26. Ginger can be best identified as a: a. Rhizome b. Bulb c. Corm d. Underground stem 27. Ginger can be harvested when: a. 4-5months b. Rhizomes are whitish in colour c. Approximately 250g weight d. Large and thick with many branches 28. Scientific Name of Avocado is: a. Mangifera indica b. Persea americana c. Cocos nucifera d. Spondias mombin The University of Trinidad & Tobago Page 5 of 9

6 29. The different types of Avocado are: a. Lula, Taylor, Pollock b. Lula, Taylor, Sunrise c. Simmonds, Sunrise, Hayden d. Hayden, Lula, Kent 30. Avocado belongs to the Family: a. Malvaceae b. Sapotaceae c. Lauraceae d. Zingerberaceae The University of Trinidad & Tobago Page 6 of 9

7 SECTION B Short Answers (80 marks). Answer all Questions in this Section. 1. a. List four (4) major differences between the Tall Type and Dwarf Type Coconut. (2marks) b. Briefly describe Propagation of Coconuts c. Name two (2) pests and two (2) diseases of Coconut (2marks) d. List six (6) factors which contributed to the decline in the Coconut Industry in any named Caribbean Country. Give two (2) recommendations which you think can revitalize industry. 2. a. Describe Artificial Induction in Pineapples and list three (3) advantages of Artificial Induction in Pineapple Production. b. Illustrate the different stages in the growth and development cycle of Pineapple and discuss what occurs at each stage of development. c. List four (4) maturity indices for harvesting of Pineapple (2marks) d. List four (4) main problems which contribute to post harvest losses and quality deterioration in pineapple. (2marks) 3. a. List four (4) Varieties of Mango grown in the Caribbean (2marks) b. List four (4) Uses of Mango (2marks) c. State the two (2) ways Mango can be classified (1mark) d. List three (3) characteristics for each of the groups mentioned in (c) e. List four (4) criteria that are used in selecting Mango for export (2marks) 4. a. State the two (2) cultivars of Passion Fruit (1mark) b. List three (3) differences between the two types mentioned in (a) c. Name three (3) types of trellising system used in Passion Fruit Production and list one (1) advantage and one (1) disadvantage of each type. (6marks) The University of Trinidad & Tobago Page 7 of 9

8 5. a. The sex of the Papaya plant determines the shape of the fruit. Briefly discuss. b. Name three (3) popular varieties of Papaya cultivated in the Caribbean and list three (3) characteristics of any named variety mentioned. c. What is the difference between open pollinated varieties and hybrid varieties of Papaya plants. (2marks) d. List two (2) pests and two (2) diseases of Papaya. (2marks) 6. a. List four (4) uses of Breadfruit. (2marks) b. List three (3) methods by which Breadfruit can be propagated (2marks) c. List three (3) maturity indices one can use to determine time of harvest for Breadfruit. d. List three (3) differences between Breadnut and Breadfruit. 7. a. List three (3) primary products/types of Ginger b. Briefly describe the propagation of Ginger (4marks) c. Outline land preparation for the cultivation of Ginger 8. a. Briefly explain flowering in Avocado (5marks) b. Explain why it is necessary to have mixed stands of Avocado versus a pure Stand of Avocado (5marks) The University of Trinidad & Tobago Page 8 of 9

9 SECTION C Essay Type Questions (20 marks). Each question is worth 20 marks. Answer any one (1) Question in this Section. 1. You are a recent graduate of the UTT, ECIAF Campus, and newly employed with NAMDEVCO. You have been assigned duties to design and implement a Post Harvest System for Mango. Illustrate and discuss a Post Harvest Handling System for Mango from time of harvest to its final destination for the International Market. 2. Pineapple farmers in the Tableland area are faced with many problems and limitations which heavily impact on the production, yield and quality of their crops. As an Agriculture Extension Officer outline the various problems faced by these farmers and the recommendations/measures you think that can be put into place to overcome these problems. 3. You have recently acquired one hectare (1ha) of leased land in the Wallerfield area. You have decided to cultivate the area in Papaya for a potential market in United States. Outline a production system for Papaya, taking into the consideration the establishment, management, cultural practices and the harvesting and post harvest techniques of the crop. The University of Trinidad & Tobago Page 9 of 9