CBSE Class 10 Answered
Pollination
Asked by | 08 Jun, 2009, 11:11: PM
Expert Answer
Flowers develop one or more of the following means to ensure cross pollination:
i) Unisexuality
ii) Dichogamy, either protandry or protogyny
iii) Heterostyly
iv) Self-sterility
Chasmogamous flowers often prefer cross pollination.
Examples of angiosperms that produce seed without fertilisation - Several species of Citrus, Euphorbia dulcis, Mangifera indica, Solanum nigram, Orchis maculate, Nicotiana tabacum
Answered by | 09 Jun, 2009, 08:46: PM
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