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प्रश्न
Which method of crop improvement can be practised by a farmer if he is inexperienced?
पर्याय
clonal selection
mass selection
pureline selection
hybridisation
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उत्तर
mass selection
Explanation:
Mass selection is easy and suitable for inexperienced farmers because it involves selecting seeds from healthy, high-yielding plants without needing special skills or tools.
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संबंधित प्रश्न
Rice normally grows well in alluvial soil, but ______ is a rice variety produced by mutation breeding that grows well in saline soil.
A group of plants produced from a single plant through vegetative or asexual reproduction are called a pureline.
Iron fortified rice variety determines the protein quality of the cultivated plant
Golden rice is a hybrid.
Assertion: Hybrid is superior than either of its parentsReason: Hybrid vigour is lost upon inbreeding.
Assertion: Colchicine reduces the chromosome number.
Reason: It promotes the movement of sister chromatids to the opposite poles.
Semi-dwarf varieties were introduced in rice. This was made possible by the presence of dwarfing gene in rice. Name this dwarfing gene.
Describe mutation breeding with an example.
Biofortification may help in removing hidden hunger. How?
With a neat labelled diagram explain the techniques involved in gene cloning.
