摘要
研究低温胁迫对热研2号柱花草(Stylosanthes guianensis cv.Reyan II)、热研5号柱花草(Stylosanthesguianensis cv.ReyanⅤ)、西卡柱花草(Stylonsanthes scabra Vog)若干生理指标的影响。结果表明:随着温度的降低和胁迫时间的延长,其总叶绿素含量均呈下降趋势,但质膜透性和可溶性糖含量有不同程度的增加。综合各项生理指标,可得3种柱花草抗寒性强弱顺序为热研5号柱花草>热研2号柱花草>西卡柱花草。
The effect of low temperature stress on physiological indicators of Stylosanthes guianensis cv. Reyan II, Stylosanthes guianensis cv. ReyanV and Stylonsanthes scabra Vog. was studied in the paper. The results suggested that with the temperature decline and stress time prolonging, the content of chlorophyll declined, while the contents of plasma membrane permeability and soluble sugar increased to various extents. Thus, a conclusion was drawn that Stylosanthes guianensis cv. Reyan V had a strongest performance in cold resistance, and Stylonsanthes scabra Vog. did the worst.
出处
《热带农业科学》
2013年第1期11-15,共5页
Chinese Journal of Tropical Agriculture
基金
国家科技支撑计划项目(No.2011BAD17B01-01-5)
农业部物种资源保护"热带牧草种质资源保存"项目
中央级公益性科研院所基本科研业务费"热带牧草新品种选育及产业化示范"项目(No.PZS083)
农业部热带作物种质资源保护项目(No.12RZZY-09)
热带地区柱花草新品种选育技术研究
关键词
柱花草
低温胁迫
抗寒性
Stylosanthes
low temperature stress
cold resistance
