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प्रश्न
Discuss the importance of testing of new plant varieties in a geographically vast country like India.
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उत्तर
The newly selected lines are evaluated for their yield and other agronomic traits of quality, disease resistance, etc. This evaluation is done by growing these in the research fields and recording their performance under ideal fertilizer application, irrigation, and other crop management practices. The evaluation in research fields is followed by testing the materials in fanners’ fields, for at least three growing seasons at several locations in the country, representing all the agroclimatic zones where the crop is usually grown. The material is evaluated in comparison to the best available local crop cultivar-a check or reference cultivar.
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संबंधित प्रश्न
Give reason :
Emasculation is done in a flower which is selected as female parent.
Name the following:
The semi-dwarf variety of wheat is high-yielding and disease-resistant.
How has mutation breeding helped in improving the production of mung bean crop?
In Brassica (rapeseed, mustard)........................ varietys is resistant to Aphids.
(a) Pusa A-4
(b) Pusa Gaurav
(c) Pusa Sawni
(d) . Pusa Shubra
Vijaya, Padma, Kanti and Jayanti are high-yielding varieties of ______.
List the two steps the classical plant breeding involves.
Name the scientists who Coined the term Diffusion Pressure Deficit
Definition and importance of Imbibition
Explain selective breeding. Give any 'two' examples and their nutrients obtained by selective breeding.
Sonora – 64 is a variety of ______.
Mechanism of fast Speciation in crop plants is ______.
The biggest constraint of plant breeding is ______.
Match the columns-
| Column A | Column B | ||
| A. | Kalyan Sona | 1. | Rice |
| B. | Pusa sawani | 2. | Wheat |
| C. | IR - 8 | 3. | Okra |
Which of the following is not an objective of Biofortification in crops?
The term ‘desirable trait’ can mean different things for different plants. Justify the statement with suitable examples.
It is said, that diseases are spreading faster due to globalisation and increased movement of people. Justify the statement taking the example of H5N1 virus.
What is meant by germplasm collection?
Suggest some of the features of plants that will prevent insect and pest infestation
What are A, B in the following table:
| Transgenic Crop | Substance | Transgene | |
| (i) | A | Flavonoids | Chalone isomerase |
| (ii) | Rice | B | Ferritin |
