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Crop 245 : Plant Breeding  Question Paper

Crop 245 : Plant Breeding  

Course:Agriculture

Institution: Kenya Methodist University question papers

Exam Year:2014



KENYA METHODIST UNIVERSITY

END OF 3''RD ''TRIMESTER 2014 (FT) EXAMINATION
FACULTY : SCIENCE & TECHNOLOGY
DEPARTMENT : AGRICULTURE AND NATURAL RESOURCES
UNIT CODE : CROP 245
UNIT TITLE : PLANT BREEDING
TIME : 2 HOURS




INSTRUCTIONS

Answer Question One and any Two other Questions

SECTION A – 30 MARKS

Question One

Discuss five objectives of plant breeding.

(10 Mks)

Some people think that plant breeding has been used by developed countries to exploit poor countries. What do you think about it? Discuss.

(10 Mks)

Discuss two advantages of self pollination of plants in relation with plant breeding.

(10 Mks)

SECTION B – 40 MARKS

Answer any two questions in this Section

Question Two

Discuss how the following concepts are used in plant breeding.

Yield

(5 Mks)

Harvest Index

(5 Mks)

Water use efficiency

(5 Mks)

Early maturity

(5 Mks)

Question Three
Discuss five mechanisms used by plants to respond to adverse environmental conditions. (20 Mks)

Question Four

Explain how the following tools are used in plant breeding:

Tissue culture

(10 Mks)

Cross-pollination.

(10 Mks)




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