question_answer 34)

  While planning for an artificial hybridization programme involving dioecious plants, which of the following steps would not be relevant? (a) Bagging of female flower                                       (b) Dusting of pollen on stigma (c) Emasculation                                                               (d) Collection of pollen

Answer:

                  (c) If the female parent produces unisexual flowers; there is no need for emasculation. 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 rebagged. This protects them from contamination by unwanted pollen grains. Note if the female parent bears bisexual/Sowers, removal of anthers from the flower bud before the anther dehisces is necessary. This is called emasculation.