玉米新品种黔兴201适宜密度研究  

Studies on the Suitable Plant Density of New Maize Variety Qianxing 201

作　　者：程国平[1] 和盛 和春良 曾学芝 芮体江 赵继献[1] 

机构地区：[1]贵州省油菜研究所,贵州思南565109 [2]丽江市种子管理站,云南丽江674100 [3]玉龙县农技推广中心,云南丽江674100

出　　处：《安徽农业科学》2008年第13期5357-5358,5362,共3页Journal of Anhui Agricultural Sciences

基　　金：贵州省科技成果重点推广计划项目(黔科合成字2005);贵州省科学技术改革转制项目(黔科合体Z字(2005)4001-17);贵州省农业动植物育种(品种后补助)专项项目(黔农育专字(2005)014)

摘　　要：[目的]研究耐密植品种黔兴201的适宜密度。[方法]通过田间试验,设置6个不同的种植密度,考察密度对黔兴201和会单4号2品种产量和植株性状的影响。[结果]产量与密度间呈一元二次抛物线关系;对于2个品种,千粒重与密度均呈极显著负相关（P〈0.01）,穗长、穗行数与密度均呈显著负相关（P〈0.05）;对于黔兴201,单株有效穗数、果穗长与密度均呈显著负相关（P〈0.05）、果穗粗与密度呈极显著负相关（P〈0.01）;对于会单4号,行粒数与密度呈极显著负相关（P〈0.01）。[结论]黔兴201在贵州省西部以及云南省海拔1400～2550m区域推广应用前景较好。[Objective] The research aimed to study the suitable planting density of the compact planting variety Qianxing 201.[Method] The influences of density on the yield and plant character of Qianxing 201 and Huidan 4 were studied with the field experiment and six levels of planting density.[Results] The results showed that the relation between yield and planting density accorded with one-place quadratic.For Qianxing 201 and Huidan 4,it was a significant negative correlation between the 1 000-grain weight and density（P〈0.01） and there was a significant negative correlation between ear length,ear rows and density（P〈0.05）. [Conclusion] There was a promising prospect for commercial production of Qianxing 201 in Guizhou province and the 1 400～2 550 m elevation area of Yunnan province.

关 键 词：玉米 黔兴201 密度 

分 类 号：S513[农业科学—作物学]