Given below are the events that are observed in an artificial hyb… - Vidyadip

Question

Given below are the events that are observed in an artificial hybridisation programme. Selection of parents → Emasculation → Bagging → Collection of pollen from other male plant → Dusting of pollen on stigma — Rebagging.
While, planning for crop improvement involving dioecious plants, which of the above mentioned steps would not be relevant?

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Answer

While planning for an artificial hybridization programme for crop improvement involving dioecious plants, there is no need of emasculation. Dioecious plants have both the male and female reproductive organs borne on separate individuals of the same species.
If the female parent produces unisexual flowers, emasculation is not required. The female flower buds are bagged before the flowers open. When the stigma becomes receptive, pollination is carried out using the desired pollen and the flower is rebagged. This protects them from contamination by unwanted pollen grains.

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