【作者】 邱博； 罗水清； 陈平平； 刘伟华； 罗红兵；

【Author】 QIU Bo;LUO Shui-qing;Chen Ping-ping;LIU Wei-hua;LUO Hong-bing;Hunan Agricultural University;Maize Engineering Research Center of Hunan Province;

【机构】 湖南省玉米工程技术研究中心； 湖南农业大学；

【摘要】 为了满足湖南省玉米生产需求,选择和推广夏玉米种植成为一项重要措施。本试验选取19个中迟熟型玉米品种,采用随机区组设计,通过比较品种的产量,以及对产量与农艺性状的相关分析和通径分析,筛选适合在湖南地区种植的夏玉米品种。结果表明:三北89、中单808和临奥1号产量排序为前三位;行粒数(r=0.887),穗长(r=0.845),株高(r=0.691),穗位高(r=0.682),百粒重(r=0.395)和穗行数(r=0.207)对产量有正相关影响:行粒数(p=0.889),百粒重(p=0.325),穗行数(p=0.286)对产量存在显著直接通径影响。更多还原

【Abstract】 19 middle-late maturing varieties were selected and randomized block was designed to compare their yields and analyze correlation between yield and agronomic characteristics.The results showed that Sanbei 89,Zhongdan 808 and Lin’ao no.1 had the yields of top three.Kernels per ear(r=0.887),ear length(r=0.845),plant height(r=0.691),ear height(r=0.682),100-grain weight(r=0.395)and rows per ear(r=0.207) had a positive correlation with yield.Whereas row kernels per row(p=0.889),100-grain weight(p=0.325) and rows per ear(p=0.286) had the most directly positive effect on the yield.更多还原