Paper-II

Section A
1. Answer any four of the following in about 150 words
a. What is progeny test? Discuss its significance in plant breeding 6 10).
b. Define emasculation. Describe various methods of emasculation 8 10).
c. What is inbreeding? Summarise the effects of inbreeding 8 10).
d. Describe in brief the merits and demerits of mass selection
e. Elaborate incorporation of novel genes through genetic engineering
2. Answer the following questions
a. Define synthetic variety. What measures would you suggest for the improvement of the performance of synthetic varieties 8).
b. Briefly discuss the factors influencing photosynthesis
c. What are phytohormones? Describe in brief the role of gibberellins in plants 6 10).
d. Define hybrid. Give the merits and demerits of hybrids 8 10).
3. Write short notes on the following in about 150 words: × 10 40)
a. Package of practices for wheat cultivation.
b. Mitosis
c. Biopesticides.
d. Diseases of tomato
4. Give scientific name, nature of damage, life cycle and control measures of the following pests

Section B
5. Describe any four of the following in about 150 words each:
a. Package of practices for paddy cultivation.
b. Hormones and pheromones 5 10).
c. Organization and functions of ICAR 5 10)
d. Constraints in the production of food grains
e. Eco-friendly management of pests and diseases
6. Distinguish between the two in about 150 words each: × 10 40)
a. I. P. M. And 1. R M
b. Endocrine and exocrine glands
c. Inbreds and hybrids.
d. Grafting and layering.
7. Write short notes on the following in about 150 words each: × 10 40)
a. International institutes for crop improvement.
b. Management of storage pests.
c. Multi line varieties.
d. Seed borne diseases.
8. Compare the following in about 150 words each: × 10 40)
a. Registered seed and breeder seed.
b. Disease tolerance and resistance.
c. Nematicides and rodenticides.
d. Pedigree method and bulk method of breeding.