种植密度对甜糯玉米新品种产量及主要农艺性状的影响  

Effects of Planting Densities on Yield and Main Agronomic Traits of New Sweet-waxy Maize Varieties

作　　者：王玉浩 蒙云飞 贺囡囡[1] 韦桂旺[1] 韦爱娟 王珊 冯云敢[1] WANG Yuhao;MENG Yunfei;HE Nannan;WEI Guiwang;WEI Aijuan;WANG Shan;FENG Yungan(Maize Research Institute,Guangxi Academy of Agricultural Sciences,Nanning 530007)

机构地区：[1]广西农业科学院玉米研究所,南宁530007

出　　处：《中国农学通报》2025年第10期1-6,共6页Chinese Agricultural Science Bulletin

基　　金：广西农业科学院基本科研业务专项项目“甜、糯玉米研究”(桂农科2021YT020);广西农业科学院基本科研业务专项项目“甜玉米挥发性风味成分遗传研究”(桂农科2023YM58);2024年度广西农业科学院成果转化项目“优质高产鲜食玉米新品种中试示范”(NCZ202404)。

摘　　要：为明确甜糯玉米新品种的最适种植密度,以鲜食玉米新品种‘桂甜糯108’和‘桂甜糯189’为试验材料,设置40000、46667、53333、60000、66667株/hm^(2)5个密度水平,以及春播和秋播2个播期条件,研究不同种植密度对‘桂甜糯108’和‘桂甜糯189’产量和主要农艺性状的影响。结果表明,甜糯玉米单株产量、果穗穗长、果穗穗粗以及植株茎粗等指标随种植密度的增加而降低;单位面积产量和果穗秃尖长等指标随种植密度的增加而增加。综合考虑产量及经济效益,‘桂甜糯108’和‘桂甜糯189’在广西的合理种植密度为46667~53333株/hm^(2)。The aim of this study was to provide scientific guidance for the promotion and cultivation of new sweet-waxy maize varieties.In order to explore the effects of different planting densities on the yield and main agronomic traits,in this experiment,the sweet-waxy maize varieties‘Guitiannuo 108’and‘Guitiannuo 189’were used as experimental materials,and five density levels were set as 40000,46667,53333,60000 and 66667 plants/hm^(2),as well as two sowing dates in spring and autumn.The results showed that the yield per plant,ear length,ear diameter and stem diameter decreased with the increase of planting density;while the yield per unit area and cob tip bald length increased with the increase of planting density.Considering yield and economic benefits comprehensively,the reasonable planting density for‘Guitiannuo 108’and‘Guitiannuo 189’in Guangxi is 46667-53333 plants/hm^(2).

关 键 词：‘桂甜糯108’ ‘桂甜糯189’ 种植密度 甜糯玉米 产量 农艺性状 经济效益 广西 

分 类 号：S513[农业科学—作物学]