摘要
为了明确玉米新品种漯玉16的最佳种植密度,研究密度对其叶面积、产量和主要农艺性状的影响。结果显示,随着种植密度的增加,漯玉16的株高、穗位高和棒三叶叶面积先增加后降低,茎粗先减少后略有增加。穗长逐渐变短,穗粗减小,秃尖长和空秆率显著增加,穗粒数和百粒重显著降低。抽雄期、吐丝期和成熟期均有推后,生育期延长。综上所述,玉米新品种漯玉16在种植密度为7.5万株/hm^(2)时,株高和穗位适中,产量最高。
In order to determine the optimum planting density of new maize variety Luoyu 16,the effects of planting density on leaf area,yield and main agronomic characteristics of Luoyu 16 were evaluated.The results indicated that the plant height,ear height and three ear-leaves of Luoyu 16 increased firstly and then decreased with the increase of planting density,the stem diameter decreased firstly and then increased slightly.With the increase of planting density,the ear length became short,the ear diameter decreased,the barren ear tip and blank stem rate increased significantly,the decreasing amplitude of the number of grain per ear and 100-grain weight decreased significantly.The stage of tasseling,silking and maturity were delayed,the growth period were prolonged.In summary,with moderate plant height and ear height,the plants of new maize variety Luoyu 16 in 7.50×10^(4) plants/hm^(2) obtained the highest yield.
作者
王蕊
付家锋
刘康
柳家友
吴伟华
闫海霞
李腾
姚晓丹
WANG Rui;FU Jia-feng;LIU Kang(Luohe Academy of Agricultural Sciences,Luohe,Henan 462300)
出处
《安徽农业科学》
CAS
2021年第12期31-33,37,共4页
Journal of Anhui Agricultural Sciences
关键词
漯玉16
密度
产量
农艺性状
Luoyu 16
Density
Yield
Agronomic characteristics
