摘要
研究了特效烯提高小麦后期抗低温能力的生理原因。结果表明，外施特效烯通过降低孕穗期植株体内ＧＡ含量和提高其ＡＢＡ含量而增大了ＡＢＡ／ＧＡ，进而增加了到叶的净光合速率，使剑叶和穗中的脯氨酸和可溶性糖含量增多，膜的稳定性增强，电解质渗漏率降低。
The physiological reason of cold-resistance increase in wheat through applying tetcyclacis was studied.The results showed as follows:tetcylacis applied before booting stage raised ABA/GA ratio of wheat in flag leaf and spike by reducing the content of GA and increasing the content of ABA. Thus it raised the net photosrrthate in nag leaf. The content of proline and soluble sugar in nag leaf and ear of wheat increased. The leakage rate of electrolytes decreased.
出处
《西南农业学报》
CSCD
1995年第4期17-21,共5页
Southwest China Journal of Agricultural Sciences
基金
国家自然科学基金
关键词
小麦
特效烯
净光合速率
Wheat Tetcyclacis Cold-resistance ABA/GA Rate of net photosynthate
