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Sbt2153:Survey Of East African Crops Question Paper

Sbt2153:Survey Of East African Crops

Course:Bachelor Of Crop Protection

Institution: Meru University Of Science And Technology question papers

Exam Year:2011

QUESTION ONE – (30 MARKS)
a) Describe the crop classification according to their life span. (6 Marks) b) Explain the following terms i. Naturally self-pollinated crops ii. Naturally cross-pollinated crops iii. Epiphytic plants iv. Scrophytic plants v. Zygotic – embryogenesis (10 Marks) c) Explain coffee harvesting procedures. (4 Marks) d) Describe the major pests of coffee in Kenya. (6 Marks) e) Why is fermentation important in coffee processing? (4 Marks)
QUESTION TWO (20 MARKS)
a) Describe the Tea Ecological requirement. (6 Marks) b) Explain the Ecological effects of shade in Tea production. (6 Marks) c) Describe the Nursery management of pyrethrum. (4 Marks) d) Differentiate between agronomic crops from horticultural crops. (4 Marks)
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QUESTION THREE (20 MARKS)
a) Explain the three essential elements that are used in defining an agro-ecological zone(AEZ) (6 Marks) b) Differentiate between an Ecosystem from an Agro-Ecological Family. (4 Marks) c) Describe the classification of vegetables according to their family. (8 Marks) d) By giving an example, explain what Biocidal crops are. (2 Marks)
QUESTION FOUR (20 MARKS)
a) Outline two major pest, their economic importance and control in the following crops i. Wheat (Triticum vulgerel L.) ii. Maize (zea mays L) iii. Sorghum (sorghum bicolor L.) (10 Marks) b) Discuss the role of crop production in socio-economic development of the Kenyan agricultural community. (10 Marks)
QUESTION FIVE (20 MARKS)
Despite advances in Agricultural research and Technology in Kenya, crop yields are far below their potential. What are the major causes of these depressed yields and how can they be improved. (20 Marks)

Sbt2153:Survey Of East African Crops Question Paper

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