气候生态因子对冬小麦千粒重的影响  

Study on Climate-ecological Factor Effect on Thousand-seed Weight of Winter Wheat

作　　者：马体顺 马青荣[1] 杨光仙[1] 赵海青[1] 张志红[1] 崔智慧[1] 

机构地区：[1]郑州市气象局,河南郑州450005

出　　处：《河南气象》2006年第3期56-57,共2页Meteorology Journal of Henan

摘　　要：通过分析1995～2005年冬小麦灌浆期间的灌浆速率、千粒重及其与大气湿度、气温日较差等的关系发现：冬小麦在灌浆过程中灌浆速率、千粒重变化呈S型曲线，与大气湿度、气温日较差关系密切。冬小麦灌浆期间，大气湿度保持在50％～70％之间，千粒重可达38g以上；气温日较差每增加1℃，千粒重提高0．6553g。The paper analyses the relations between grouting velocity, thousand - seed weight and atmospheric humidity, daily range of temperature during 1995 ～ 2005. The results show they have near relations. The change curve between grouting velocity and thousand - seed weight is of the S type. Thousand - seed weight reaches over 38 g when atmospheric humidity is during 50%～70%. Thousand - seed weight has increased by 0.6553 g as long as daily range of temperature has 1℃ rise.

关 键 词：冬小麦 千粒重 灌浆速率 大气湿度 气温日较差 

分 类 号：S162.53[农业科学—农业气象学]