Pollen germination and tube growth of the incompatible pollinations of strain Kanpur lotni x Kanpur lotni belonging to Brassica campestris L.

Abstract

In the incompatible pollination of strain Kanpur Lotni x Kanpur Lotni of B. campestris, the inhibitory substnnce preventing self-fertilization was found to be concentrated on the stigma and the stylar region adjacent to it. Applying the pollen grains directly on the stylar tissue after removal of stigma was found to by-pass the stigmatic barrier and thus allowed normal pollen tube growth, fertilization and seed set.