Q. No.PusaSem 2, a variety of flat bean, is resistant to all the following pests except:
1.
Aphids
2.
Jassids
3.
Fruit borer
4.
Bollworm
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The algae Spirulina, Chlorella and the microbe Methylophilus methylotrophus can be used as a source of:
| 1. | Vitamin A and C | 2. | Minerals like calcium |
| 3. | Single Cell Protein | 4. | Omega 3 fatty acids |
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The best method for producing plants free of viruses will be:
| 1. | Meristem culture | 2. | Embryo culture |
| 3. | Somatic embryogenesis | 4. | Somatic hybridization |
Several South Indian states raise 2-3 crops of rice annually. The agronomic feature that makes this possible is because of
1. shorter rice plant
2. better irrigation facilities
3. early yielding rice variety
4. disease-resistant rice variety
Which one of the following combinations would a sugarcane farmer look for in the sugarcane crop?
| 1. | Thick stem, long internodes, high sugar content, and disease resistant |
| 2. | Thick stem, high sugar content, and profuse flowering |
| 3. | Thick stem, short internodes, high sugar content, disease resistant |
| 4. | Thick stem, low sugar content, disease resistant |
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Conventional breeding is often constrained by the availability of a limited number of disease-resistance genes that are present and identified in various crop varieties or wild relatives. This is most commonly overcome by:
| 1. | Inducing mutations | 2. | Somaclonal variations |
| 3. | Genetic engineering | 4. | Plant introduction |
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The main reason for the success of the green revolution was:
1. Improvement in the efficiency of chemical pesticides
2. Improvement in irrigation facilities
3. Equitable distribution of land among farmers
4. Development of HYV varieties
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Arrange the following steps of a plant breeding program in a correct chronological manner:
| I. | Selection and testing of superior recombinants |
| II. | Collection of variability |
| III. | Cross hybridisation among the selected parents |
| IV. | Evaluation and selection of parents |
| V. | Testing, release, and commercialisation of new cultivars |
| 1. | II, IV, I, III, V | 2. | IV, I, II, III, V |
| 3. | II, IV, III, I, V | 4. | IV, III, II, I, V |
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Which of the following is not correctly matched?
| 1. | Green revolution - A significant increase in agricultural productivity resulting from the introduction of high-yield varieties of grains, the use of pesticides, and improved management techniques. |
| 2. | White revolution – Also called as Operation Flood, it refers to a significant increase in milk production which made India the largest milk producer in the world. |
| 3. | Blue revolution - Management of water resources that can steer humanity to achieve drinking water and crop irrigation security. |
| 4. | Pisciculture - The farming of aquatic organisms such as fish, shellfish, and even plants. |
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Hisardale is a new breed of:
| 1. | Sheep developed by crossing Bikaneri ewes and Marino rams. |
| 2. | Sheep developed by crossing Bikaneri rams and Marino ewes. |
| 3. | Goat developed by crossing Bikaneri ewes and Marino rams. |
| 4. | Goat developed by crossing Bikaneri rams and Marino ewes. |
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