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中国农学通报

中国农学通报 ›› 2012, Vol. 28 ›› Issue (19): 164-167.doi: 10.11924/j.issn.1000-6850.2011-3837

• 林学 园艺 园林 • 上一篇    下一篇

不同浓度赤霉素对地被菊‘紫重楼’开花特性的影响

王媛 崔雁汇 孔一昌 张强 吕晋慧   

  • 收稿日期:2011-12-20 修回日期:2012-05-11 出版日期:2012-07-05 发布日期:2012-07-05

Effects of Different Concentrations of Gibberellin on the Flowering of Ground-cover Chrysanthemum ‘Zichonglou’

  • Received:2011-12-20 Revised:2012-05-11 Online:2012-07-05 Published:2012-07-05

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摘要：

笔者探讨不同浓度赤霉素(GA3)对地被菊‘紫重楼’ 株高、冠幅、开花特性（花期、开花量、花朵重瓣性、花径）和花粉生活力的影响，旨在为地被菊杂交育种、花期调控提供参考依据。试验结果表明，喷施100~500 mg/L GA3后，‘紫重楼’露色期、始花期及盛花期分别提前6~10天、7~12天和2~7天；GA3有利于节间伸长和株高增加，但植株开花量和花瓣重瓣性降低，冠幅、花径减小。其中，500 mg/L GA3处理下的地被菊节间长度与株高显著高于其他水平；100~300 mg/L GA3处理可促进花粉生活力，500 mg/L对花粉生活力有抑制作用。

关键词: 反应体系, 反应体系

Abstract:

The effects of different concentrations of gibberellin on plant height, crown breadth, flowering characteristic (flowering season, flower number, petals number, flower diameter) and the pollen germination viability of ground-cover Chrysanthemum ‘Zichonglou’ were studied, which could provided substantial base for the hybrid breeding and regulating flower season of ground-cover Chrysanthemum. The results showed that 100-500 mg/L of gibberellin might cause the dewing color season 6-10 days ahead of time, the starting flower season 7-12 days ahead of time, and the abundant flowering season 2-7 days ahead of time. With the increase of gibberellin concentration ranging from 0 to 500mg/L, internode and plant height were increased, but the flower number, petals number, crown breadth, and flower diameter were inhibited. The longest internode and plant height occurred with 500 mg/L gibberellin treatment. The pollen germination viability were improved by 100-300 mg/L of gibberellin, and impressed by 500 mg/L gibberellin.

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