Paper-II
Section A
1. Answer any four of the following in about 150 words each:
a. Enumerate the methods of preservation fruits and vegetables
b. Write on the technique of preparation of pineapple squash
c. What are phytohormones? How are they used in plant propagation and breaking dormancy 4 4
d. What is a polyhouse? What are the benefits of polyhouses 6
e. List out commonly grown jasmine varieties and their methods of propagation 5 10).
2. Answer the following in about 150 words each:
a. Distinguish between auxins and gibberellins
b. Discuss on the physiological effects of Gibberellins
c. What factors affect the rate of respiration in plants
d. How do aerobic and anaerobic respirations differ
3. Answer the following in about 150 words each:
a. What are cell organelles? Describe the structure and functions of Mitochondria and Golgi bodies 4 4 10).
b. What are ergastic substances? Write a note on them 8 10).
c. How ribosomes differ from microsomes
d. Define chromosomal aberration. List out different types of chromosomal aberrations 5 10).
4. Write short notes on: × 10 40)
a. Diseases favoured by soil
b. Plant and leaf hoppers as vectors
c. Management of vector borne diseases
d. Saw-toothed grain beetle
Section B
5. Answer any four of the following in about 150 words each:
a. Bring out five important pests on crucifers, their nature of damage and management 3 2 10).
b. Bring out different pesticide formulations with short note on each 5 10).
c. What are the qualities expected of a successful parasitoid
d. Explain the advantages and disadvantages of systemic diseases 5 10).
e. List out 10 Pod borers on pulses with their systematic position. Common name, Scientific name, Family, Order and describe their adults
6. Answer the following in about 150 words each: Define breeding methods, procedure for the following:
a. Mass selection 4 4 10)
b. Pure line selection 4 4 10)
c. Pedigree method 4 4 10)
d. Backcross method 4 4 10)
7. Answer the following in about 150 words each:
a. What are colloids? Explain their properties 8 10).
b. Define diffusion. What factors influence the rate of diffusion 8
c. Define and differentiate between transpiration and guttation 8 10).
d. What are cytokinins and their physiological effects 8
8. Write short notes on: × 10 40)
a. Sundrying of seeds
b. Huller scarifier
c. Mercurials in seed treatment
d. Types of seed treatment and precautions observed in seed treatment (Condition under which seed must be treated).