Polination | definition of Polination by Medical dictionary
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pollination the transfer of pollen from male to female reproductive organs in higher plants, for example, microsporangium to ovule in GYMNOSPERMS, and anther to stigma in ANGIOSPERMS. In flowering plants the flowers show a strong link between structure and the method of pollination (see ANEMOPHILY, ENTOMOPHILY).
Many angiosperms carry out CROSS-POLLINATION. Some of these types, such as brassicas, have SELF-INCOMPATIBILITY systems to prevent self-pollination. Self-pollination, however, is common in certain plants, such as groundsel or chickweed.
References in periodicals archive
In general, it is widely accepted that polination
and seed dispersal syndromes are fundamental to understand colonization and regeneration of ecosystems.
* Bats are extremely beneficial animals, and play a major role in crop polination
and insect control (see www.batcon.org).
Saxicoles 3500-4000 - 3000-3500 - 2500-3000 - 2000-2500 .06 1500-2000 - 1000-1500 - 500-1000 - <500 - Table VII Regression matrix of the dependence of range size on attributes of the studied bromeliad species Life-form Ecophysiological type Polination
mode Fruit type R = 0.40 *** 0.61 *** 0.42 *** 0.54 *** *** = p <0.001; subjected to sequential Bonferroni correction.