Document Type

Article

Journal/Book Title/Conference

The Punjab Horticultural Journal

Volume

8

Issue

3

Publication Date

9-1-1968

First Page

204

Last Page

210

Abstract

THE role of insects in the pollination of crops has been appreciated since long. by the agriculturists. Whereas it is absolutely necessary to bring about cross-pollination in unisexual flowers, in bisexual flowers, there can either be self-pollination or cross-pollination. Cross-pollination in bisexual flowers may be necessitated where male and female parts ripen at different age of the flower, as in apple, or where anthers and the stigma are so placed in relation to each other that the pollen grains cannot fall on the stigma of the same flower.

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