不同时期灌溉对华北平原春玉米穗粒数的影响

高震, 梁效贵, 张莉, 赵雪, 杜雄, 崔彦宏, 周顺利

Effects of irrigating at different growth stages on kernel number of spring maize in the North China Plain

GAO Zhen, LIANG Xiao-Gui, ZHANG Li, ZHAO Xue, DU Xiong, CUI Yan-Hong, ZHOU Shun-Li

图6 吐丝期土壤含水量与光合速率及穗粒数间关系 三角形、圆形和方形分别为2014年、2015年和2016年; CK、IV6、IV12、IS、IS15分别代表不灌水对照、拔节期、大口期、吐丝期和吐丝后15 d灌水处理。

Fig. 6 Relationships between soil water content with photosynthesis rate and kernel number per ear at silking stage The triangle, circle, and square indicate in 2014, 2015, and 2016, respectively; CK, IV6, IV12, IS, IS15 indicate the control without irrigation, irrigating at when the 6th and 12th leaf collar is visible, silking and 15 day after silking stage, respectively.