Which of the following timeline is correct for conventional plant breeding?

1. Practiced for thousands of years, since the beginning of human civilization

2. The evidence of plant breeding dates back 9000-11000 years ago

3. The present-day crops are the result of domestication in ancient times

4. All of these

The list of traits that breeders try to incorporate into crop plants should lead to

1. Increased tolerance to environmental stresses

2. Resistance to pathogens

3. Tolerance to insect pests

4. Increased crop yield and improved quality

What is the root of any breeding program?

1. Genetic variability

2. Gametic sustainability

3. Germplasm durability

4. Meiotic Anaphase

During the period 1960 to 2000, wheat production is increased from

1. 11 million tonnes to 70 million tonnes

2. 15 million tonnes to 75 million tonnes

3. 10 million tonnes to 65 million tonnes.

4. 11 million tonnes to 75 million tonnes

During the period 1960 to 2000, the rice production went up from

1. 35 million tonnes to 89.5 million tonnes

2. 30 million tonnes to 75 million tonnes

3. 38 million tonnes to 84 million tonnes

4. 25 million tonnes to 40 million tonnes

The hike in the production of wheat and rice was due to the development of

1. Dwarf varieties

2. Semi-dwarf varieties

3. Tall varieties

4. Medium varieties

The semi-dwarf variety of wheat was developed. Which of the following is not associated with that?

1. Nobel laureate

2. International centre for Wheat and Maize Improvement

3. Norman E. Borlaug

4. Australia

Which of the following variety of wheat was introduced all over the growing belt of India in 1963?

1. Kalyan wheat

2. Sona kalyan

3. Sonalika

4. Kalyanika

Kalyan Sona has which of the following additional advantage?

1. High yielding

2. Disease resistant

3. Both 1 and 2

4. Draught resistant

Semi-dwarf varieties of rice were derived

1. From IR-7

2. From IR-8

3. From IR-5

4. From IR-9