生态环境学报2012，Vol.21Issue(2)：231-236,6.
外源NO对不同冬春性小麦花后光合生理的影响
Effect of exogenous nitric oxide on photosynthetic physiology in winter and spring wheat varieties after anthesis
摘要
Abstract
Exogenous environmental factors play an important role in improving wheat {Tritivum aestivum L.) growth and development. Exogenous nitric oxide (NO), as one of the important factors, will take effect on the vital regulation for wheat growth, therefore, to ascertain regulation action of NO is very important for improving wheat yield. In this study, two wheat varieties (weak-spring wheat cultivar Yanzhan 4110 and semi-winter wheat cultivar Zhoumail8) were used as experimental materials to cultivate in screen house. Wheat leaves after two days of anthesis were exposed to 0, 0.075, 0.15 and 0.30 mmolL-1 SNP, respectively, and then the indexes of leaf area, chlorophyll content, photosynthetic physiology and yield components of maturity were measured. The results showed that exogenous NO could improve flag leaf area, RWC content, soluble sugar content, chlorophyll content, WUE, 1000-grain weight with different degrees. Compared to the control, the low concentrations (0.075-0.15 mmol-L-) of SNP reduced Y/G ratio significantly, while the high concentration SNP (0.30 mmol-L-1) showed the opposite effect. In summary, the regulation effect of exogenous NO on semi-winter wheat cultivar, is better than semi-spring cultivar. Moreover, it was demonstrated that the yield could be improved in Zhoumai 18 imposed by 0.30 mmol-L-1 SNP, and Yanzhan 4110 imposed by 0.15 mmol-L-1 SNP.关键词
小麦/冬春性/NO/花后/光合生理Key words
wheat/ winter-spring characteristic/ nitric oxide/ after anthesis/ photosynthetic physiology分类
农业科技引用本文复制引用
张黛静,李婷婷,姜丽娜,邵云,郭魏,刘普婷,李春喜..外源NO对不同冬春性小麦花后光合生理的影响[J].生态环境学报,2012,21(2):231-236,6.基金项目
国家“十二五”科技支撑计划项目(2011BAD16B07 （）
2011BAD16B14) （）
