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

Which of the following is better yielding Rice varieties?

1. Jaya and Kalyan sona

2. Sonalika and Ratna

3. Jaya and Ratna

4. All of these

Semi-dwarf rice varieties were developed at

1. International Rice Research Institute, Philippines

2. International Rice Research Institute, Mexico

3. International Rice Research Institute, Taiwan

4. International Rice Research institute, India

The rice variety Taichung Native -1 was also used for semi-dwarf variety production and it was from

1. IR-8

2. Sonalika

3. Taiwan

4. China

Which of the following belongs to north India?

1. Sacchaurm barberi

2. Saccharum officinarum

3. Saccharum northien

4. Saccharum Asturian