玉米机械粒收是我国玉米收获方式和产业发展的必然趋势，筛选产量高、收获期子粒含水率低的品种是实现玉米机械粒收的关键。2014～2018年在河南郑州、驻马店、鹤壁、新乡、洛阳、漯河开展夏玉米机械粒收品种筛选试验与示范。通过对参试品种收获期子粒含水率、破碎率、杂质率和产量损失率数据分析，结果表明：破碎率高是该区机械粒收存在的主要质量问题，导致破碎率高的主要原因收获期子粒含水率偏高。通过对玉米产量和收获期子粒含水率双向平均作图法，初步筛选出先玉335，华农138、联创808、新单80、新单68、丰德存玉10号等适宜机械粒收候选品种。
英文摘要:
Maize mechanical harvest is the inevitable trend of maize harvest and industry development in China. Screening maize varieties with high yield and low moisture content is the key to realize mechanized harvest. To popularize the technology of maize mechanical kernel harvest in Henan province, harvest experiments were conducted in Henan Zhengzhou, Zhumadian, Hebi, Xinxiang, Luoyang and Luohe from 2014 to 2018. The results showed that the high grain broken rate is the main problems of maize mechanical kernel harvest in this area, and the high grain moisture content at harvest is the main reason of high grain broken rate, which can be effectively solved planting suitable varieties for mechanical kernel harvest. In this study. According to the two-way average mapping method, we selected many maize cultivars suitable for mechanical grain harvest, including Xianyu335, Huanong138, Lianchuang808, Xindan80, Xindan68, Fengdecunyu10, and so on.
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