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.
出处
《河南气象》
2006年第3期56-57,共2页
Meteorology Journal of Henan
关键词
冬小麦
千粒重
灌浆速率
大气湿度
气温日较差
Winter wheat
Thousand - seed weight
Grouting velocity
Atmospheric humidity
Daily range oftemperature
