摘要
以浓度为100,300,500 mg/L的氯化胆碱(CC)水溶液喷施地黄叶面,可明显提高干旱胁迫下地黄叶片脯氨酸(Pro)和可溶性糖(WSC)的含量,减少丙二醛(MDA)的累积。使地黄叶片在干旱胁迫条件下维持较高的通过PSⅡ的电子传递速率(Fv/Fo)、PSⅡ原初光化学效率(Fv/Fm)、实际光化学效率(ФPSⅡ)、光化学猝灭系数(qp)和光合放氧速率(Pn)。其中以300 mg/L的CC效果较好。
Spraying choline chloride (CC) on the leaves of Rehmannia glutinosa under drought stress in different concentrations (100, 300, 500mg/L) obviously increased the contents of proline and water-soluble carbohydrate and retarded the accumulation of malondialdehyde (MDA) in the leaves. As a result, higher Fv/Fo , Fv/Fm,ФPSⅡ , qp and Pn were maintained under water Stress. Comparatively, the concentration of 300mg/L had the best effect.
出处
《河南农业科学》
CSCD
北大核心
2007年第1期84-86,共3页
Journal of Henan Agricultural Sciences
基金
河南省科技攻关项目(0524420042)
关键词
地黄
氯化胆碱
干旱胁迫
渗透调节
光合作用
Rehmannia glutinosa
Choline chloride
Drought stress
Osmotic adjustment
Photosynthesis