Question

Emasculation is the removal of
A. Stigma from the flower of the male parent
B. Calyx from the flower of the male parent
C. Calyx from the flower of the female parent
D. Stamens from the flower of the female parent
E. Corolla from the flower of the female parent

Answer 1

Emasculation is the step of artificial hybridization. Hybridisation is the crossing of two parents having desired characters to produce a hybrid plant. It is performed in bisexual flowers by a plant breeder. It avoids pollination.

Complete answer: Emasculation is the process of removal of anther or stamens. It is a process used in artificial hybridization by the gardeners. Artificial hybridisation is a technique performed by humans which involves crossing two different plants having complementary good traits in order to get an overall superior or desired variety. During artificial hybridization, only the desired gene of pollen grains are introduced to the stigma of the female through pollination. It is basically the removal of corolla from the flower of a female parent. This artificial pollination helps to avoid unwanted pollen and saves time. The process of artificial hybridization involves the following steps:
i) Choice of the parent
ii) Evaluation of the parent
iii) Selfing of parents
iv) Emasculation
v) Bagging
vi) Tagging
vii) Pollination
viii) Harvesting
ix) Threshing, drying and storage
Hence, the correct answer is option D.

Note: In the bagging step of artificial hybridization, the plant is covered by a plastic bag to avoid unwanted pollination as well as to ensure the pollination by desired male parent or pollen. After dusting the pollen grain of the desired male after on the stigma of emasculated flower, re bagging and tagging occurs. Tags include details of relevant information.