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:2014
QUESTION ONE – (30 MARKS)
(a) Explain the environmental factors that induce flowering in coffee plants. (5 Marks) (b) What are the ecological effects of shade in tea production. (5 Marks) (c) Describe crop classification according to their life span. (5 Marks) (d) Explain the following: (i) Zygotic - embryogenesis (ii) Naturally cross-pollinated crops (iii) Epiphytic plants (iv) Zero tillage (5 Marks) (e) Explain the horticultural maturity of maize. (5 Marks) (f) Explain the nursery management of pyrethrum. (5 Marks)
QUESTION TWO – (20 MARKS)
(a) Describe the major pests of bean (Phaseolus Vulgaris). (5 Marks) (b) Explain the black arm effect in cotton (Gossypium SPP). (5 Marks) (c) Discuss the role of crop production in socio-economic development of the Kenya rural community. (10 Marks)
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QUESTION THREE – (20 MARKS)
(a) Explain why cereals are important and widely grown in East Africa. (8 Marks) (b) By using any of the Biocidal crops, suggest a cropping system that can be used to control and reduce pests damage in crop production. (12 Marks)
QUESTION FOUR – (20 MARKS)
(a) Explain the symptoms and control measures of the following pests; (i) Berry borer (Hypotheremus hampei) (ii) Potato tuber moth (Phthorimea operculella) (iii) Birds (quelea SPP) (iv) Stalk borer (Chillo partellus) (8 Marks)
(b) Discuss tobacco (Nicotiarra tobacum) as a crop. (12 Marks)
QUESTION FIVE – (20 MARKS)
(a) Explain the measures you would take as hygiene and control precautions against storage pests before and after storing grains. (10 Marks) (b) Explain the ratooning nature of sugarcane and describe the advantages of this cropping system. (10 Marks)
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