In which organ the growth of pollen tube is observed, till it reaches the ovules?

A.Pollen tube

B.Style

C.Ovary

D.Stigma

Pollen pistil interaction is

1. Chemically mediated process

2. Dynamic process

3. Genetically controlled process

4. More than one option is correct

While planning for an artificial hybridisation programme involving dioecious plants, which of the following steps would not be relevant?

1. Bagging of female flower

2. Dusting of pollen on stigma

3. Emasculation

4. Collection of pollen