- to convey pollen to the stigma of (a flower).
Origin of pollinate
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for pollinate
Their nightly flights bring with them the powers to pollinate plants and control insect populations.Bats’ Link to Ebola Finally Solved
November 12, 2014
Besides honey production, honeybees are bred commercially for their ability to pollinate 90 crops, including many fruits and nuts.The Caviar of Condiments Under Threat
September 15, 2009
Thus the flowers attempt to secure cross-pollination; but, failing this, pollinate themselves.Field and Woodland Plants
William S. Furneaux
Pollinate tomatoes by hand to ensure early fruit on plants intended for outdoor culture.
There is many a pecan planting in Kentucky that was a failure because there wasn't anything to pollinate.Northern Nut Growers Association Report of the Proceedings at the Forty-Second Annual Meeting
Northern Nut Growers Association
Stoke: "Persian walnuts may not pollinate black walnut, but black walnut has pollinated the Persian walnut in known instances."Northern Nut Growers Association Report of the Proceedings at the Thirty-Eighth Annual Meeting
Northern Nut Growers Association
- (tr) to transfer pollen from the anthers to the stigma of (a flower)
Word Origin and History for pollinate
Online Etymology Dictionary, © 2010 Douglas Harper
- The process by which plant pollen is transferred from the male reproductive organs to the female reproductive organs to form seeds. In flowering plants, pollen is transferred from the anther to the stigma, often by the wind or by insects. In cone-bearing plants, male cones release pollen that is usually borne by the wind to the ovules of female cones.
A Closer Look: When a pollen grain lands on or is carried to the receptive tissue of a pistil known as the stigma, the flower has been pollinated. But this is only the first step in a complicated process that, if successful, leads to fertilization. The pollen grain contains two cells-a generative cell and a tube cell. The generative nucleus divides to form two sperm nuclei. The tube cell grows down into the pistil until it reaches one of the ovules contained in the ovary. The two sperm travel down the tube and enter the ovule. There, one sperm nucleus unites with the egg. The other sperm nucleus combines with the polar nuclei that exist in the ovule, completing the process known as double fertilization. These fertilized nuclei then develop into the endocarp, the tissue that feeds the embryo. The ovule itself develops into a seed that is contained in the flower's ovary (which ripens into a fruit). In gymnosperms, the ovule is exposed (that is, not contained in an ovary), and the pollen produced by the male reproductive structures lands directly on the ovule in the female reproductive structures. Fertilization in conifers can be slow in comparison to flowering plants-the pollen nuclei of pines, for example, take as long as 15 months to reach the ovule after landing on the female cone. And there are variations: In the ginkgo, the ovules fall off the tree and pollination occurs on the ground.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.