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中国农学通报 ›› 2010, Vol. 26 ›› Issue (5): 184-188.

• 林学 园艺 园林 • 上一篇    下一篇

一串红生长和开花特性对高温反应的品种间差异研究

刘辉1,2,张国平1,沈国正2,傅巧娟2,赵杭萍2   

  • 收稿日期:2009-10-22 修回日期:2009-11-18 出版日期:2010-03-05 发布日期:2010-03-05

Study on Difference of Growth and flowering in Salvia Splendens Varieties at High Temperature

  • Received:2009-10-22 Revised:2009-11-18 Online:2010-03-05 Published:2010-03-05

摘要:

一串红是我国夏秋季节常用的红色草花,温度超过30℃会严重影响其观赏价值。本试验研究了9个一串红品种在田间自然高温下的生育期及田间生长指标的变化情况。结果表明一串红不同品种间在生育期上存在显著差异,火娃和辉虹开花天数最长。在自然高温胁迫条件下,一串红不同品种间在株高、冠幅、花序长度和花序数上存在显著差异,所有品种生长放缓,并且均出现了少量叶片萎蔫的现象,但高温并未对一串红的正常开花起到显著影响。在整体表现上,辉虹、皇后、火娃和红孩表现出较高的观赏价值,有较强的耐热性,适于在高温下生长。

关键词: 关键词:花生, 关键词:花生, SSR标记, 遗传多样性, 聚类分析

Abstract:

Salvia splendens,a red bedding plant is used widely in landscape in the Summer and Autumn.High temperature exceeding 30℃ will seriously affect its ornamental value. The change of development stage and growth indexes of 9 Salvia Splendens after high temperature treatment was investigated. The seedling experiments were done in farmland under natural high temperature.The results showed that there are significantly different in growing period of Salvia Splendens under natural high temperature.‘Huo Wa’ and ‘Pround Red’ had the longer florescence.Plant high, rown diameter, inflorescence length and inflorescence number of nine varieties were significantly affected by high temperature stress and showed significant differentce in varieties.The tests also found that all the varieties of growth slowed down and there were a small number of leaves wilting.However,high temperature did not affect the flowering of Salvia Splendens.On the whole , ‘Pround Red’, ‘Queen’,’Huo Wa’ and ‘Hong Hai’ were tiptop in visual value and heat-tolerance.