Third Semester M.Sc. Botany -Internal Examination Feb 2024 Plant breeding, horticulture & Biostatistics

First Semester M.Sc. Botany -Internal Examination Feb 2024

Plant breeding, horticulture & Biostatistics

I Answer the following questions.

1.What do you mean by microcenters?

2. What are biofertilizers?

3. What is acclimatization?

4. Differentiate heterosis and hetrobeltiosis 5. What is null hypothesis?

6. What is ANOVA

7.What is arboriculture

8. Expand NBPGR

9. Name the most potent chemical mutagen

10. What do you mean by male sterility? How is it attained in plant breeding method

(10*1= 10)

II Answer the following in not more than 50 words

11. a. Explain hybridization and mention its procedure. OR

b. Different types of sampling methods.

129. a. Brief account on indoor gardens.

13b. What is seed certification? How is it done?

10. a. What is topiary? Give examples.

Differentiate

b. What is seed propagation? correlation & Regression.

14. a. Write short notes on the concept of the centers of origin proposed Vavilov

b. What is landscaping?

12. a. Write notes on cuttage and graftage

13. a What is the significance of baging & rebaging in hybridization?

b. What is seed propagation?

III Answer the following questions in not more than 150 words

(5 x 2 = 10)

16. a. Give an account on back cross and multiple cross methods of hybridization of self-pollinated

crops.

b. Write notes on home gardens and roof gardens 17 15. a. What are the different types of plant introduction?

b. What do you mean by incompatibility? Explain the methods to overcome incompatibility. (5*2=10)

IV Write an essay on following in not more than 250 words

16. a. Give a detailed account of different types, methods, merit, and demerits of selection

b. What are main objectives of plant breeding and importance of floral biology

XT. a. Write an essay on components of garden

b. Discuss the methods, principles, and basis of resistance breeding

write an essay oncutting & Grafting

(2x 10=20)

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