Differentiate between IAA and IBA. Give their role in Agriculture.

Describe testing, release and notification of crop varieties.

Describe meristem culture and production of virus-fee plants.

Describe the role of micro and macromutations in crop improvement.
Give the importance of 'economic threshold' and 'economic injury level' in integrated pest management.

2. Distinguish between the following:
2. Gametogenesis and sporogenesis.

2. Photoperiodism and vemalization.

2. Isolation and Roguing in speed plots.

2. Interspecifc and intergeneric hybrids.


Enlist various types of male sterility. Describe briefly about cytoplasmic male sterility.

Discuss engineering plants for tolerance to insect damage.

Discuss food grain procurement and distribution constraints in India.
What are vascular wilts? Give main pathogens associated with this disease

4.
Give the differences between outer and inner mitochondrial membrane.
Explain crassulation acid metabolism. How they are better suited to extreme desiccation

Enlist the factors affecting enzyme activity and give the importance

What is abscisic acid? Give physiological roles of ABA.


Give the factors affecting post harvest life of flowers.

Discuss drying, dehydration and concentration in preservation of fruits and vegetables.

Give the major insect pests of tomato and their management.

What are rapid methods of testing seed viability

Why Sitophilus oryzae and Rhyzopertha dominica are important


What is disease occurrence and epidemic List different components of integrated disease management.

Give definition and concept of biological control. How the biological control of Agrobacterium tumefaciens has been achieved.

What are the possible reasons for slow adoption of integrated pest management.

Give important varieties of aonla and discuss their harvesting and post harvest management.

7. Distinguish between the following

Back cross and Test cross.

Rhizobial inoculant and Microbial toxin.

Surface treatment and Fumigation.

Germination and Dormancy.

Design and layout of lawns and gardens.

Food production and national dietary pattern.

National and international food policies.

Management of storage pests in pulses.