中文摘要：

分析豫东典型小麦种植区——商丘市2010年-2011年的气象数据,选择商丘市2011年8个田间＂三情＂监测点＂矮抗58＂小麦样品进行实验室分析,研究2010年-2011年豫东地区出现的持续性干旱对冬小麦品质性状的影响。结果表明：水分条件与冬小麦品质性状密切相关,研究区2010年-2011年的持续干旱整体上降低了冬小麦的品质性状,灌溉可有效控制降水匮乏产生的负面影响。在8个监测点中,蛋白质含量和Zeleny沉降值较常年最大偏低分别达39%、17%;表征淀粉糊化特性的峰值粘度下降最大幅度为6%;表征面团流变学特性的面团形成时间、稳定时间最多缩短32%、30%;此外,拉伸面积、延伸性等拉伸参数也有不同程度下降。

英文摘要：

According to the national Climate Monitoring Bulletin the climate was extremely unusual during autumn of 2010 to spring of 2011 across eastern Henan as there was persistent drought throughout the growth of winter wheat.The 30% reduction in average precipitation had a relatively large impact on the quality of wheat,whereas heat and light conditions remained the same as previous years.Shangqiu is a typical wheat growing area in eastern Henan and the focus of our study.As factors of precipitation,we analyzed meteorological data from 2010-2011 in eastern Henan and evaluated soil moisture conditions with fuzzy comprehensive evaluation models.Wheat samples of ＂Aikang 58＂ from eight ＂three sentiment＂ monitoring stations in Shangqiu during 2011 were analyzed in laboratory.We found that the water condition and winter wheat quality were closely related.The qualities of traits of winter wheat were reduced because of the extreme drought,but irrigation dramatically decreased these adverse effects.In the eight monitoring stations,the minimum protein content and Zeleny sedimentation value of the samples was 39%,17% lower than the average historical value.It was 6% of the maximum decline volume of peak viscosity marking the characteristic of starch gelatinization.At the same time,there was a negative effect on rheological properties.For example,the form time and stability time of dough were decreased 32% and 30% respectively.Tensile parameters such as tensile area and extending dropped.In fully irrigated areas,water conditions were able to meet the growth requirements of winter wheat and the quality was close to perennial indicators.Under drought conditions,moderate irrigation enhanced the quality of wheat.In addition,the drought tolerance of winter wheat varieties was different.Therefore,the influence of water conditions on wheat quality may vary across different varieties.Under global change,climate extremes will occur more frequently and heat quality changes caused by the combined effects of temperature,light and mois