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

Subtopic:  Plant Breeding & Its Steps (OLD NCERT) |
 92%
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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

Subtopic:  Plant Breeding & Its Steps (OLD NCERT) |
 81%
From NCERT
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What is the root of any breeding program?

1. Genetic variability

2. Gametic sustainability

3. Germplasm durability

4. Meiotic Anaphase

Subtopic:  Plant Breeding & Its Steps (OLD NCERT) |
 88%
From NCERT
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Which of the following is the tedious task?

1. Collection of variability

2. Cross hybridization

3. Evaluation of parents

4. Selection of parents

Subtopic:  Plant Breeding & Its Steps (OLD NCERT) |
 59%
From NCERT
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Creation of pure line has to be done in plant breeding at which step

1. After collection of germplasm

2. After evaluation of parents

3. After selection of parents

4. After cross hybridization

Subtopic:  Plant Breeding & Its Steps (OLD NCERT) |
From NCERT
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After the selection process of desired progeny in the plant breeding program, the process of self-pollination is carried out to

1. Reach a state of uniformity

2. Avoid the segregation of characters in the progeny

3. Both 1 and 2

4. Selection of superior progenies

Subtopic:  Plant Breeding & Its Steps (OLD NCERT) |
 80%
From NCERT
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In-plant breeding, the evaluation in research fields is followed by

1. Testing the materials in the research field for three growing seasons

2. Testing the materials in the farmer's field for at least two growing seasons

3. Testing the materials in the farmer's field for at least three growing seasons

4. Testing the materials in advanced research fields for at least two growing seasons

Subtopic:  Plant Breeding & Its Steps (OLD NCERT) |
 68%
From NCERT
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According to data given in text book, agriculture in India is responsible for …..India's GDP and employs nearly……. of the population.

1. 33% 65%

2. 33%, 62%

3. 30%,70%

4. 25%,75%

Subtopic:  Impact: Green Revolution (OLD NCERT) |
 74%
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In 1960, the dramatic increase in food production in our country was because of varieties of

1. Rice and wheat

2. Rice and corn

3. Wheat and corn

4. All of these

Subtopic:  Impact: Green Revolution (OLD NCERT) |
 83%
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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

Subtopic:  Impact: Green Revolution (OLD NCERT) |
 79%
From NCERT
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