Sexual reproduction in flowering plants|Artificial hy.. Doubl.. Fe..| 12th biology| Telugu &English

This video explains artificial hybridization and double fertilisation. Artificial hybridization don in between 2 plants which are having desired characteristics. In this both desired characteristics will brought in on one plant by artificial hybridization. If female selected plant is bisexual stamen are removed by emasculation. The emasculated flower protected from contamination of unwanted pollen by covering flower with butter paper bag . Desired pollen dusted on emasculated flower and cross pollination don . In double fertilisation, 2 male gamits released by pollen tube in one of synergids will fertilise one with egg cell and second male gamet fertilise central cell which is having two polar nuclei . Because two fertilisations it is called double fertilisation. removing of stamen by emasculation protected female parent flower with bagging 2 male gamits fertilise with 2 cells of embryosac first fertilisation with egg cell second fertilisation with central cell Keywords emasculation bagging syngamy triple fusion primary endosperm cell