农业科学研究Issue(4)：13-17,5.
花后高温胁迫对春小麦光合指标的影响
Impacts of the high temperature stress after the flowering period on the photosynthesis index of spring wheat
摘要
Abstract
In the middle and later periods of the northwestern spring wheat, high temperature had a great influence on grain weight and yield. This study under the condition of potted flowers after high temperature on the influence of spring wheat photosynthetic indexes. The results show that high temperature stress on spring wheat of photosynthetic rate, transpiration rate, water use efficiency (WUE), stomatal conductance, intercellular CO 2 concentration effect is remarkable. Under high temperature stress with Ningchun 4 and Ningchun 47 flag leaf photosynthetic rate compared with CK average decline of 15.7%~15.7%, transpiration rate, stomatal conductance decreased significantly, decreased 19.5%~43.6%. That high temperature stress make spring wheat leaf stomatal closure, photosynthetic rate decreased; Flowers after high temperature stress on water use efficiency also has a significant impact on spring wheat, Ningchun 4 and Ningchun 47 WUE down 13.26% to 23.4% compared with CK, affect the grain grouting, Ningchun 4 grains fell by 19.91%, NingChun 47 grains fell by 25.09%, yield decreased obviously. Production, the corresponding cultivation measures should be taken to relieve the wheat flower after high temperature influence on the grain filling, to enhance the yield of spring wheat.关键词
春小麦/花后高温/光合指标/产量Key words
spring wheat/high temperature after flowers/photosynthetic indicators/production分类
农业科技引用本文复制引用
李昱,吴宏亮,康建宏,姚珊..花后高温胁迫对春小麦光合指标的影响[J].农业科学研究,2013,(4):13-17,5.基金项目
国家自然科学基金资助项目 （）
