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单词 abscise
释义

abscise

/əbˈsʌɪz /
verb [with object]
1Cut off or away.
1.1 [no object] Botany Separate by abscission; fall off.For example, petals may wilt and abscise more rapidly after pollen deposition on the stigma or pollen tube growth through the style....
  • The last bract on the spikelet axis has been removed from around the terminal flower, which has an aborted carpel with a two-branched stigma and the filaments of the two stamens, the anthers having abscised.
  • In several species the flowers never close, as the petals abscise when the flower is still open.
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更新时间:2024/12/24 1:13:50