玉米品种与密度对植株性状的影响  

Effects of Maize Variety and Planting Density on Plant Characters

作　　者：刘海[1] 段宏凯[2] 郑丽萍[1] 李作一[1] 程永钢[1] 李爱军[1] 田森林[1] 王艳娟[1] 

机构地区：[1]山西省农业科学院高粱研究所,山西晋中030600 [2]山西农业大学农学院,山西太谷030801

出　　处：《中国农学通报》2017年第13期21-25,共5页Chinese Agricultural Science Bulletin

基　　金：山西省财政厅财政支农项目"早熟玉米新品种晋单84号的示范与推广"(ZYYF2015-03)

摘　　要：旨在改善玉米群体的植株性状以提高产量。试验采用3种不同玉米品种[‘协玉3号’(A1)、‘协玉4号’(A2)、‘先玉339’(A3)],5种不同种植密度,随机区组设计,3次重复,并采用宽等行距种植模式。结果表明,在玉米株高上:A3>A2>A1,且A3与A1的差异在5个密度下都达到了显著水平;在玉米穗位高上:A2>A1>A3,且3个品种在穗位高方面的差异性十分显著;在雄花分枝方面:A1>A2>A3,且3个品种之间的差异性都达到了极显著水平。品种对玉米的株高、穗位高和雄花分枝影响较密度大。穗位高与株高的关系,不同的品种有不同的影响效果。要想改良玉米的植株性状以协调群体关系,应该从选择自交系抓起,选择株高适当、穗位高较低与雄花分枝较少的自交系是必要的。The objective is to increase yield by improving plant characters of maize group. This experiment used 3 maize varieties [＇Xieyu 3＇ （A1）, ＇ Xieyu 4＇ （A2）, ＇ Xianyu 339＇ （A3）], 5 planting densities, randomized block design with three repeats, and wide spacing planting model. The results showed that A3〉A2〉A1 on maize plant height, and A3 had significant difference from A1 under the five densities treatments. The order of corn ear height was A2〉A1 〉A3, and the three maize varieties had significant difference on corn ear height under five planting densities. The order of staminate flower branch was A1 〉A2〉A3, and the three maize varieties had significant difference. Compared with density, variety had stronger effect on maize plant height, ear height and male branch influence. Different varieties had different effects on the relationship between ear height and plant height. In order to improve the maize plant characters to coordinate group relationship, choosing suitable inbred line with proper plant height, lower ear height and lower staminate flower branch should be highlighted.

关 键 词：品种 密度 株高 穗位高 雄花分枝 

分 类 号：S513[农业科学—作物学]