Rose plants produce large, attractive bisexual flowers but they seldom produce fruits. On the other hand a tomato plant produces plenty of fruits though they have small flowers. Analyse the reasons for failure of fruit formation in rose.
Nuclear polyembryony is found in
Apogamy is
Pollen tube enters through
Which one of the following fruits is parthenocarpic?
Rarely among angiosperms the pollen grains influenced the endosperm. This is called as