The reason for vegetatively reproducing crop plants to suit for maintaining hybrid vigour is that
Correct answer: B. Once a desired hybrid produced, no chances of losing it
- A. They are more resistant to diseases
- B. Once a desired hybrid produced, no chances of losing it
- C. They can be easily propagated
- D. They have a longer life span.
Explanation
Hybrid vigour or heterosis is defined as the superiority of the hybrid over its parents. It is lost on inbreeding. It is lost in the F2 generation in self-pollinated plants and declines slowly in cross-pollinated plants. So it is more profitable in vegetatively propagated plants as they do not involve sexual reproduction and so hybrid vigour is not lost in subsequent crops, e.g., sweet potato, sugarcane, strawberry and grapes, etc.
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