中文摘要：

目的：探索不同行向对夏玉米产量的影响。方法：采用不同品种和行向种植,研究玉米田间漏光率、产量等性状的影响。结果：在试验区间内,随着玉米植株的生长田间漏光率逐渐下降,在同一天不同时间,前期东西行向比南北行向的玉米田间漏光率略高,中后期南北行向比东西行向的漏光率高,尤其是中午12.00时差异更明显;结论：东西行向种植能增加玉米的穗重、穗长、穗粗;两个品种东西行向比南北行向增产分别5.99%和3.05%。

英文摘要：

Objective：It is to explore different row direction to influence on summer maize yield. Method：Applying different varieties and row directions , maize field light -leaking rate and yield traits were studied in this experiment. Result： In the experiment range, with the growth of maize plants the field light - leaking rate gradually decreases. At different times on the same day, in the early stage, the light -leaking rate was high with east -west row than with the north -south row. In the middle stage ,the light -leaking rate is high with the＇north - south row than with east -west row, especially when at noon 12.00 the difference is more obvious. Couclusion： The ear weight, length, and diameter can increase with east -west row. The yields of two varieties increase by 5.99% and 3.05% respectively with east - west row than with the north - south.