Self - pollination, and subsequently self - fertilisation, in orchards always takes place to some extent.

在种子园中，常常有某种程度的自花传粉和随后地自花授精。

youdao

In traditional plant breeding, some inbred maize plants destined to be crossed with others have their male, pollen-producing tassels cut off to prevent self-fertilisation (maize is a horticultural hermaphrodite, carrying both male and female sex organs).

ECONOMIST: Terminator genes