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प्रश्न
While studying the history of the domestication of various cultivated plants _______ were recognized earlier.
विकल्प
Centres of origin
Centres of domestication
Centres of hybrid
Centres of variation
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उत्तर
While studying the history of the domestication of various cultivated plants Centres of origin were recognized earlier.
संबंधित प्रश्न
Briefly describe various steps involved in plant breeding.
What is heterosis?
Explain the effect of light and temperature on photosynthesis.
Importing better varieties and plants from outside and acclimatizing them to the local environment is called
Which one of the following crop varieties correct matches with its resistance to disease?
| Variety | Resistance to disease |
| a) Pusa Komal | Bacterial blight |
| b) Pusa Sadabahar | White rust |
| c) Pusa Shubhra | Chilli mosaic virus |
| d) Brassica | Pusa swarnim |
Smooth leaved and necterless cotton varieties are NOT affected by ____________.
Match the columns-
| Column A | Column B | ||
| A. | Kalyan Sona | 1. | Rice |
| B. | Pusa sawani | 2. | Wheat |
| C. | IR - 8 | 3. | Okra |
Several South Indian states raise 2-3 crops of rice annually. The agronomic feature that makes this possible is because of ______.
Discuss briefly the technology that made us self-sufficient in food production.
Give a reason for the following:
The continuous inbreeding of crops may lead to reduced fertility and productivity. However, the self-pollinated crops do not show the ill-effects of inbreeding.
