夏玉米籽粒脱水特性及与灌浆特性的关系

李璐璐, 明博, 高尚, 谢瑞芝, 侯鹏, 王克如, 李少昆

Study on Grain Dehydration Characters of Summer Maize and Its Relationship with Grain Filling

LuLu LI, Bo MING, Shang GAO, RuiZhi XIE, Peng HOU, KeRu WANG, ShaoKun LI

表5 玉米籽粒脱水与灌浆参数相关分析

Table 5 Correlation analysis of dehydration parameters and filling parameters of maize

年份 授粉-生理 授粉-生理 生理成熟期含水率 收获期含水率 生理成熟期 平均灌浆速率 生理成熟前平均 生理成熟后平均 总脱水 Year 成熟天数 成熟积温 MC at physiological maturity MC at 百粒干重 Average 脱水速率 脱水速率 速率 Days from pollination to physiological maturity Accumulated temperature from pollination to physiological maturity harvest 100-kernel dry weight at physiological maturity filling rate Average dehydration rate before physiological maturity Average dehydration rate after physiological maturity Total dehydration rate 授粉-生理成熟天数 2015 1 0.995** -0.815** 0.192 0.785** -0.273 -0.940** -0.800** -0.942** Days from pollination to physiological maturity 2016 1 0.991** -0.309 -0.248 0.642** 0.176 -0.794** 0.06 -0.696** 授粉-生理成熟积温 2015 1 -0.810** 0.194 0.791** -0.269 -0.943** -0.806** -0.950** Accumulated temperature 2016 1 -0.356 -0.299 0.589* 0.107 -0.773** 0.067 -0.677** from pollination to physiological maturity 生理成熟期含水率 2015 1 0.317 -0.906** -0.193 0.577 0.620* 0.627* MC at physiological 2016 1 0.843** -0.418 -0.304 -0.316 0.055 -0.274 maturity 收获期含水率 2015 1 -0.23 -0.610* -0.433 -0.477 -0.432 MC at harvest 2016 1 -0.283 -0.163 -0.271 -0.411 -0.407 生理成熟期百粒干重 2015 1 0.374 -0.595 -0.53 -0.617* 100-kernel dry weight at physiological maturity 2016 1 0.866** -0.301 0.046 -0.212 平均灌浆速率 2015 1 0.492 0.345 0.455 Average filling rate 2016 1 0.114 0.004 0.161 生理成熟前平均脱水 2015 1 0.768** 0.979** 速率 2016 1 -0.092 0.879** Average dehydration rate before physiological maturity 生理成熟后平均脱水 2015 1 0.866** 速率 2016 1 0.368 Average dehydration rate after physiological maturity 总脱水速率 2015 1 Total dehydration rate 2016 1