Effects of gibberellic acid and zeatin on the growth response of cucumber cotyledons

Robert M. Muir, Yeong Jing Cheng

研究成果: 雜誌貢獻文章

2 引文 斯高帕斯(Scopus)

摘要

In contrast to cytokinin, gibberellic acid has no effect on the growth of the isolated cucumber cotyledon in darkness. Like cytokinins in light, gibberellic acid causes increases in fresh weight and area of the cotyledon at concentrations from 10-7 to 10-3 M. Radiant energies in the blue, red, and far-red regions of the spectrum all induce the growth responses to gibberellic acid. The effect of the far red is greater than that of the red, which is greater than that of the blue. Gibberellic acid is ineffective in the promotion of chlorophyll development, whereas cytokinins are very effective. Although zeatin and gibberellic acid both cause an increase in fresh weight and area of the cotyledons in light, they appear to have entirely separate actions in the growth responses.

原文英語
頁(從 - 到)197-201
頁數5
期刊Journal of Plant Growth Regulation
7
發行號4
DOIs
出版狀態已發佈 - 1988 十二月 1

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Plant Science

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