//M0//QN1//CS//DL0

Artificial hybridisation : This is one of the major approaches of crop improvement programme. In such crossing experiments it is important to make sure that only the desired pollen grains are used for pollination and the stigma is protected from contamination (from unwanted pollen). This is achieved by emasculation and bagging techniques.
(i) If the female parent bears bisexual flowers, removal of anthers from the flower bud before the anther dehisces using a pair of forceps is necessary. This process is referred to as _________. (a) Collection (b) Selection (c) Emasulation (d) Bagging(ii) In artificial hybridisation it is important to make sure that only the desired pollen grains are used for pollination and the stigma is protected from contamination from unwanted pollen. So, what processes are included in this type of crossing ? (i) Emasculation (ii) Bagging (iii) Selection (iv) Rebagging (a) i, ii, iii (b) i and iii (c) i, ii and iv (d) ii and iv(iii) If the female parent produces unisexual flowers then which step is not required ? (a) Emasculation (b) Bagging (c) Rebagging (d) (a) and (b) both(iv) Why bagging is important ?(a)To protect stigma from desirable pollen grains.

(b) To protect stigma from contamination from unwanted pollen.(c) Both of the above

(d) None of the above

//X

(i) (c) Emasculation (ii) (c) i, ii and iv (iii) (a) Emasculation (iv) (b) to protect stigma from contamination from unwanted pollen.