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单词 apical dominance
释义

apical dominance


apical dominance

n. Inhibition of the growth of lateral buds by the terminal bud of a plant shoot.

apical dominance


apical dominance

[′ap·i·kəl ′däm·ə·nəns] (botany) Inhibition of lateral bud growth by the apical bud of a shoot, believed to be a response to auxins produced by the apical bud.

apical dominance


apical dominance

a condition in plants where the stem apex prevents the development of side shoots from lateral buds near the apex. The dominance is controlled by the presence of high concentrations of plant hormones (AUXINS) at the apex, produced by the apical bud. Further down the stem the auxin concentration is reduced and strong lateral branches are formed. Pruning of the apical bud in, for example, rose bushes, causes lateral branches to develop.
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更新时间:2024/11/13 18:41:12