浚单系列玉米品种耐密性与抗病性研究  

Research on Density Tolerance and Disease Resistance of Jundan Series Maize Varieties

作　　者：臧鑫 张素芬 常俊香 张同香 ZANG Xin;ZHANG Sufen;CHANG Junxiang;ZHANG Tongxiang(Hebi Academy of Agricultural Sciences,Hebi Henan 458030)

机构地区：[1]鹤壁市农业科学院,河南鹤壁458030

出　　处：《现代农业科技》2024年第4期7-11,共5页Modern Agricultural Science and Technology

摘　　要：本研究以浚单系列玉米品种中较为畅销的浚单29、浚单3136、浚单658、浚单1618为试验材料,设置不同种植密度,对其耐密性及抗病性进行评价。结果表明:随着密度的增加,浚单系列玉米品种株高、重心高明显增高;茎腐病、穗腐病、南方锈病随密度的增加表现出加重趋势,以浚单658综合抗病性最好;随着密度的增加,产量构成因素中穗行数、行粒数、千粒重、单株籽粒干重等逐渐降低;产量以7.50万株/hm^(2)密度处理下的浚单658为最高,达到13243.8 kg/hm^(2)。Using the best-selling maize varieties in the Jundan series(Jundan 29,Jundan 3136,Jundan 658,and Jundan 1618)as experimental materials,this study evaluated their density tolerance and disease resistance by setting different planting densities.The results showed that with the increase of density,the plant height and center of gravity height of Jundan series maize varieties significantly increased;stem rot,ear rot,and southern rust showed an increasing trend with increasing density,and Jundan 658 showed the best comprehensive disease resistance;with the increase of density,the yield components such as the number of rows per spike,the number of grains per row,1000-grain weight,and dry weight of grains per plant gradually decreased;the highest yield was achieved at a density of 75000 plants/hm^(2) with Jundan 658,reaching 13243.8 kg/hm^(2).

关 键 词：浚单系列玉米品种 种植密度 产量 抗病性 

分 类 号：S512[农业科学—作物学]