利用AMMI模型分析陇东旱地冬小麦新品种(系)丰产稳产性  

Analysis on high yield and stability of winter wheat cultivars in dryland of east Gansu by AMMI model

作　　者：施万喜[1] 

机构地区：[1]陇东学院农林科技学院,甘肃西峰745000

出　　处：《干旱地区农业研究》2009年第3期37-43,共7页Agricultural Research in the Arid Areas

基　　金：甘肃省科技支撑项目(0804NKCM058);庆阳市科技攻关(GDK031-1-1);陇东学院科技重点项目(Szzk0304)

摘　　要：为了评价陇东旱地冬小麦新品种（系）在不同生态条件下的丰产稳产性,利用AMMI模型对11个品种（系）6、个试点组成的2005-2006年度甘肃省陇东片冬小麦区域试验产量资料分析。结果表明,试点间平均产量变幅2 354.56-5 045.47 kg/hm^2,品种间的平均产量变幅2 994.80-3 756.68 kg/hm^2;基因型间、环境间和GEI引起的产量变异达到极显著水平,三者的变异平方和分别占总处理平方和的5.19%、79.45%、15.36%,表明环境和GEI对产量变化的影响远大于基因型。IPCA1I、PCA2I、PCA3累计解释了88.20%的GEI信息,用显著主成分计算基因型稳定性参数（Di）,其最大相差达8.09倍。属于丰产、稳产的品种有：陇鉴386、宁麦5号、陇育216,丰产、稳产性较差的品种有康庄891、静9717、陇原031。试点以泾川、灵台分辨力较高,西峰、镇原较低,灵选3号在泾川、灵台、平凉,陇麦977在静宁、平凉等县（市）具有特殊适应性,可在适宜区域示范种植。To evaluate high yield and stability characters of winter wheat cultivars under different ecological conditions in dry land, the yield data of 11 winter wheat genotypes at 6 sites grown in winter wheat regional trial of east Gansu Province were used for AMMI model analysis in 2005 - 2006. The average yield ranged from 2 354.56 kg/hm^2 to 5 045.47 kg/hm^2 in 6 sites, and cultivars （lines） ranged from 2 994.80 - 3 756.68 kg/hm^2. Highly significant variations existed in genotypes, environments and GEI. The three variances were 5.19%, 79.45% and15.36% of total variance. The resuhs showed that the environment and the GEI had greater effects on yield than genotypes. IPCA1, IPCA2 and IPCA3 accounted for 88.20% of total GEI variance. Based on calculation of genotype stability parameter （D （subscript i）） and site discrimination parameter （D（subscript i）） by using principal component analysis, the results showed that the difference of D （subscript i） among the genotypes was up to 8.09 times; C, enotypes Longjian 386, Ningmai No. 5 and Longyu 216 had high and stabile yield. Kangzhuang 891, Jin 9717 and Longyuan 031 were low in yield and stability. The resolving ability of sites was high in Jingchuan and Lingtai but low in Xifeng and Zhenyuan. Lingxuan No. 3 had specific adaptability in Jingchuan, Lingtai and Pingliang; Longn- 977 had specific adaptability in Jinchuan and Jingn- ing; These cultivam can be widely planted in certain dryland.

关 键 词：冬小麦 基因型与环境交互作用 AMMI模型 适应性 陇东旱地 

分 类 号：S512.103.4[农业科学—作物学]