干旱地区农业研究Issue(4)：146-152,7.DOI:10.7606/j.issn.1000-7601.2015.04.23
沟垄集雨种植补灌对冬小麦旗叶叶绿素荧光参数的影响
Effects of ridge and furrow rain harvesting with supplemental irrigation on chlorophyll fluorescence parameters in winter wheat flag leaf
摘要
Abstract
A field experiment was conducted to determine the regulation of crop photosynthesis and output and water saving effect under ridge and furrow rain harvesting with supplemental irrigation in Guanzhong irrigation district .We studied the effects of photosynthetic rate , chlorophyll fluorescence parameters and yield of winter wheat . The results showed that Pn of ridge and furrow rain harvesting which were 57 .1% ~84 .4% and 25 .3% ~50 .3% higher than that of CK and border irrigation , Fm、Fv、Fv/Fm、Fv/Fo、qP and yield of each ridge and furrow rain harvesting treatments were also higher than that of flat planting ,but qN was opposite .Both two width of ridge and furrow rain harvesting treat-ments boosted grain yield by 74 .6% ~124 .9% compared with CK ,ridge and furrow rain harvesting with supplemental irrigation treatments enhanced grain yield compared with border irrigation by 0 .3% ~18 .9% , the higher irrigation amount the higher yield ,and the wide furrow was better than the narrow one .Therefore ,in the year of less rainfall ,effi-ciency of light energy conversion increased by 44 .1% under 60 cm rain harvesting cultivation .It is concluded that ridge and furrow rainfall harvesting could improve the efficiency of light energy conversion and the quantum yield ,improve the efficiency of photosynthesis and maintain higher grain yield under the conditions of half supplemental irrigation amount of border irrigation .关键词
冬小麦/沟垄集雨种植/补灌/叶绿素荧光参数/产量Key words
winter wheat/ridge and furrow rain harvesting/supplemental irrigation/chlorophyll fluorescence pa-rameters/yield分类
农业科技引用本文复制引用
张玉,丁瑞霞,韩清芳,贾志宽,任小龙,聂俊峰,杨宝平..沟垄集雨种植补灌对冬小麦旗叶叶绿素荧光参数的影响[J].干旱地区农业研究,2015,(4):146-152,7.基金项目
国家863课题（2013AA102902）；“十二五”国家科技支撑计划课题 （）
