Crop variety improvement

Question 1

Crop variety improvement

Answer 1

Refers to the development of new varieties with certain desirable traits

Question 2

Desirable traits

Answer 2

Disease resistant, Reaction to fertilisers, Product quality and high yield

Question 3

Hybridisation

Answer 3

Refers to crossing between genetically dissimilar plants.

Question 4

Types of hybridisation

Answer 4

Intervarietal, Interspecific, Intergeneric

Question 5

Intervarietal

Answer 5

Between different varieties

Question 6

Interspecific

Answer 6

Between different species of the same genus

Question 7

Intergeneric

Answer 7

Between different generus

Question 8

Factors

Answer 8

High Yield, Quality Improvement, Biotic and Abiotic Factors, Change in maturity duration, Desirable agronomic characteristics, Wider Adaptability

Question 9

High Yield

Answer 9

Increase in productivity of crops per acre

Question 10

Quality improvement

Answer 10

Different crops require different quality characteristics

Question 11

Wheat

Answer 11

Baking Quality

Question 12

Pulses

Answer 12

Protein Quality

Question 13

Oil Seeds

Answer 13

Oil quality

Question 14

Fruits and veggies

Answer 14

Preservation quality

Question 15

Biotic and abiotic

Answer 15

Biotic (diseases, insects and nematodes) and abiotic (droughts, salinity, water - logging, heat, cold, frost) stresses affect crops in different situation. Varieties resistant to these stresses have increased crop production.

Question 16

Change in maturity duration

Answer 16

Shorter maturity duration results in:
1. increases economic varieties
2. farmers can harvest multiple crops in a year.
3. reduce cost
Uniform maturity makes harvesting easier and reduces losses in harvesting

Question 17

Wider adaptability

Answer 17

More crops can be harvested in different climatic conditions

Question 18

Desirable agronomic characteristics

Answer 18

Tallness and profuse branching - fodder crops, Dwarfness in cereals to reduce consumption of nutrients.