【摘要】 为筛选适合榆林地区种植的籽粒直收玉米新品种，推动玉米籽粒直收技术在榆林地区的推广应用。2024年开展了14个新玉米品种的比较试验，调查了各参试品种的生育期、农艺性状、籽粒含水率及产量等指标。结果表明，适宜榆林地区机械籽粒直收的品种按优先顺序依次为九圣禾592、LPC652、渭科16、陕单953。这4个品种生育期适中，能适应榆林地区的气候条件，农艺性状表现良好；产量较对照品种先玉335增幅为2%～29%;收获期倒折率均低于5.0%,籽粒含水率均低于25%,符合籽粒直收要求。种植户可根据自身生产条件合理选择种植品种。更多还原

【Abstract】 In order to screen new varieties of direct-harvest corn suitable for planting in Yulin area, and promote the popularization and application of corn grain direct harvest technology in Yulin area.In 2024, a comparative test of 14 new maize varieties was conducted to investigate the growth period, agronomic traits, grain water content and yield of the tested varieties.The results showed that the varieties suitable for direct mechanical grain harvest in Yulin were Jiushenghe 592, LPC652, Weike 16 and Shaandan 953.The growth period of these 4 varieties is moderate, which can adapt to the climatic conditions of Yulin area.The agronomic performance is good.The yield is 2%-29% higher than that of Xianyu 335, during the harvest period, the lodging rate of these 4 varieties is below 5.0%, and the moisture content is below 25%, which meets the requirements of direct grain harvest.Farmers can choose to plant according to their own conditions.更多还原