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Crop 551: Crop Physciology Question Paper

Crop 551: Crop Physciology

Course:Master Of Science In Agricultural & Rural Development

Institution: Kenya Methodist University question papers

Exam Year:2013

KENYA METHODIST UNIVERSITY
FACULTY OF SCIENCE AND TECHNOLOGY
DEPARTMENT OF AGRICULTURE
END OF SEMESTER EXAMINATION FOR MASTER OF SCIENCE IN AGRICULTURAL & RURAL DEVELOPMENT, APRIL, 2013
UNIT TITLE : CROP PHYSIOLOGY
UNIT CODE : CROP 551

TIME: 3 HOURS
INSTRUCTIONS
Answer all questions in section A and three questions in Section B.
SECTION A
Question One
Explain four ways in which plants adapt to water stress according to Levitt’s drought adaption mechanisms.
(8 Marks)

Describe the three phases of the plant sigmoid growth curve.
(6 Marks)

Discuss the role of pollination in fruit development.
(4 Marks)

Explain what is meant by "senescence" and give two examples of phyto-hormones involved in senescence and the role each one of those hormones plays.
(6 Marks)

List four major plant nutrients and the role played by each nutrient.
(6 Marks)
SECTION B
Question Two
Discuss eight ways in which water stress affects plant performance and product quality. (15 Marks)
Question Three
Discuss ten factors that affect the rate of photosynthesis in plants. (15 Marks)
Question Four
Explain the term evapo-transpiration and discuss six factors affecting the rate of evapo-transpiration in plants. (15 Marks)

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