9个杂交玉米新品种(组合)在新化县的引种试验初报

Preliminary Introduction Experiment of 9 New Hybrid Maize Varieties in Xinhua County

为筛选出适宜新化县种植的高产、优质、熟期适中的玉米新品种(组合),2014年新化县农技推广中心引进了正大999等9个杂交玉米新品种(组合),以临奥一号作对照,进行了品种栽培比较试验。试验结果表明:各品种间产量存在显著性差异,其中正大999、先玉508、潞鑫23、百农5号、北育1号和福单2号6个品种分别比对照增产36.22%、21.51%、16.80%、16.01%、14.12%和11.88%,产量差异极为显著,晋农玉2008也比对照增产6.46%,这7个品种产量和综合农艺性状均表现优良,适宜在新化种植,可以作为临奥一号的替代品种或搭配品种使用。而吉湘2188和东315分别比对照减产9.6%、11.26%,不建议在新化县推广种植。

In order to screen new maize varieties（combinations） suitable for planting in Xinhua county with high yield, good quality and moderate mature period, Xinhua County Agricultural Technology Promotion Center introduced 9 new maize varieties（combinations） such as Zhengda 999 in 2014 and conducted variety cultivation comparative test using Lin＇ao No.1 as the control. Test results showed that the yields of different varieties had significant differences. The yields of 6 varieties of Zhengda 999, Xianyu 508, Luxin 23, Bainong No. 5, Beiyu No. 1, and Fudan No. 2 were higher than that of the control by 36.22%, 21.51%, 16.80%, 16.01%, 14.12%, and 11.88%, and the yields were of extremely significant differences; the yield of Shanxi Nongyu 2008 also increased by 6.46% than that of the control. The yields and comprehensive agronomic traits of these 7 varieties were of good performance, and they were suitable for the cultivation in Xinhua and could be used as alternative varieties or auxiliary cultivars of Lin＇ao No.1. Compared with the control, the yields of two other varieties, Jixiang 2188 and Dong 315 decreased by 9.6% and 11.26%, respectively, and thus they were not recommended for the promotion in Xinhua county.