不同海拔下云南田麦产量构成分析  

Analysis of Yield Components of Yunnan Irrigated Wheat in Different Altitude

作　　者：程加省[1] 于亚雄[1] 王志伟[1] 杨金华[1] 胡银星[1] 程耿[1] 金代珍 赵志仙 

机构地区：[1]云南省农业科学院粮食作物研究所/国家小麦改良中心云南分中心,云南昆明650205 [2]文山州种子管理站,云南文山663000 [3]临沧市种子管理站,云南临沧677099

出　　处：《安徽农业科学》2013年第7期2889-2893,共5页Journal of Anhui Agricultural Sciences

基　　金：重点新产品开发计划项目(2012BB015);国家小麦现代产业技术体系小麦云南综合试验站(CARS-3-2-44);云南省农业科学院麦类育种创新团队(2012HC008)

摘　　要：[目的]研究不同海拔点云南小麦新品种的性状表现和产量构成。[方法]11个试点分别为德宏、文山、红河、临沧、玉溪、弥渡、保山、楚雄、昆明、大理、丽江,10份小麦新品种分别为云选二号、宜麦一号、7181-1、昆麦二号、楚麦23-240、凤03-321、1069、044-6、青春55、云选11-12。[结果]海拔2 400 m的丽江各品种均表现出较高产量,可作为品种产量潜力测试地。海拔基本相同的试点,产量存在较大差异。生育期、千粒重、有效穗、成穗率、穗粒数、株高等各性状与海拔均没有呈明显的线性关系,常呈"W"和"V"型变化。各主要性状与产量的灰色关联度与海拔均不呈相关关系,各性状的极值均不在同一海拔,各海拔点的主要性状与产量的相关性也不一致。[结论]该研究可为今后小麦育种和新品种推广提供参考。[Objective] The aim was to study character performance and yield components of Yunnan new wheat varieties at different elevation point.[Method] Eleven test points were Dehong,Wenshan,Honghe,Lincang,Yuxi,Midu,Baoshan,Chuxiong,Dali,Lijiang,resp.,ten wheat varieties were Yunxuan No.2,Yimai No.1,7181-1,Kumai No.2,Chumai 23-240,Feng 03-321,1069,044-6,Qingchun 55,Yunxuan 11-12.[Result] The results showed that all kinds of wheat varieties showed higher yield in altitude of 2 400 meters,it could be used as variety yield potential test point.There was a bigg difference in yield although at the same altitude.There were not obviously linear relationship between altitude and growth period,1 000-grains weight,effective spike number,spike rate,grain number per spike,plant height,often showed 'W' or 'V' type change.The grey correlation degree of every main traits and yield had no significant relationship with altitude,extreme value of each trait at different altitudes were not the same altitude,the correlation was inconsistent between the main traits and yield at each altitude.[Conclusion] The study provides a reference for wheat new varieties breeding and population.

关 键 词：海拔 主要性状 产量 灰色关联度 

分 类 号：S512[农业科学—作物学]