Q. No.A plant disease not caused by a fungal pathogen will be:
1.
Brown rust of wheat
2.
Black rot of crucifers
3.
Red rot of sugarcane
4.
Late blight of potato
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Kalyan Sona and Sonalika are:
1. semi-dwarf varieties of wheat developed in India
2. semi-dwarf varieties of wheat introduced in India
3. semi-dwarf varieties of rice developed in India
4. semi-dwarf varieties of rice introduced in India
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In breeding a new genetic variety of a crop, the immediate usual requirement after the superior recombinant has been selected is:
1. to create a pure line
2. evaluation in research fields
3. testing in farmer’s fields
4. applying for a patent
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Identify the option where all columns are correctly matched:
|
|
Crop |
Variety |
Resistant to |
|
1. |
Rapeseed mustard |
Pusa Sawani |
Shoot and fruit borer |
|
2. |
Chilli |
Himgiri |
Chilli mosaic virus |
|
3. |
Cauliflower |
Pusa Shubhra |
Bacterial blight |
|
4. |
Flat bean |
Pusa Sem 2 |
Aphids |
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In north India, a sugarcane farmer would be best advised to grow:
| 1. | Saccharum barberi |
| 2. | Saccharum officinarum |
| 3. | A hybrid of Saccharum barberi and Saccharum officinarum |
| 4. | A hybrid of Saccharum officinarum and a grass Aegilops squarrosa |
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Methylophilus methylotrophus is a source of:
| 1. | Bioinsecticide | 2. | Single cell protein |
| 3. | Thrombolytic | 4. | Clotting factors |
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Which of the following is not an example of biofortification?
1. Iodized salt
2. Atlas 66
3. Golden rice
4. Maize hybrids with increased lysine and tryptophan
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Identify the incorrectly matched pair:
| Column I | Column II | |
| 1. | Sonalika and Kalyan Sona | Improved varieties of wheat |
| 2. | Jaya and Ratna | Improved varieties of maize |
| 3 | Saccharum Barberi | Poor sugar content and yield |
| 4. | Saccharum officinarum | High sugar content and thick stems |
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The most important species of honeybee reared in India is:
| 1. | Apis indica | 2. | Apis mellifera |
| 3. | Apis dorsata | 4. | Apis florea |
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