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单词 open pollination
释义

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open pollination
open pollination n. pollination occurring by natural means, without direct human intervention.
ΚΠ
1917 Amer. Naturalist 51 43 A few good ovules are formed which produce viable seed in the case of open pollination or when crossed back with the parents.
1956 Heredity 10 60 There was no correlation in the percentage seed set from self- and open-pollination.
1993 House Beautiful Feb. 23/1 The more catalogs you read the more you will notice that some seedsmen promote open pollination while others push hybrids.
extracted from openadj.
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