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Hort 221: Plant Propagation  Question Paper

Hort 221: Plant Propagation  

Course:Bachelor Of Science In Horticulture

Institution: Egerton University question papers

Exam Year:2013



ANSWER ALL QUESTIONS

1. Distinguish between the following:
a. Leaf cuttings and leafy cuttings. (4 Marks)
b. ISTA and AOSA (2 Marks)
c. Dedifrentiation and organogenesis. (4 Marks)
d. The tetrazolium test and the fast green test. (2 Marks)
e. Direct seed priming and osmotic seed priming (6 Marks)
f. Periclinal chimera and mericlinal chimera (2 Marks)
2. Discuss the following:
a. The procedure of eliminating pathogens from vegetative propagation materials. (7 Marks)
b. The process of graft union formation (5 Marks)
c. The importance of curing corms and how to break bud dormacy in tubers. (6 Marks)
d. Factors affecting the generation of cuttings (14 Marks)
3.(a) Describe the classification of seed based on storage longevity. (10 Marks)
(b) Describe the non-genetic variations in clones (09 Marks)
4.(a) Illustrate and describe cleft grafting and the whip and tongue grafting. (9 Marks)
(b) Illustrate and describe shield budding and ring budding. (6 Marks)
(c) Illustrate and describe mount layering and air layering. (8 Marks)




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