AMMI模型分析不同基因型马铃薯产量稳定性

Yield Stability of Different Genotype Potatoes Based on AMMI Model

为研究不同基因型马铃薯产量的年度稳定性,选用7个品种(系),采用随机区组设计,4次重复,应用AMMI模型对连续3年的数据进行了分析。结果表明,基因型、环境和基因型与环境互作的平方和分别占总平方和的47.69%、6.41%和40.03%,均达极显著水平。AMMI双标图表明,参试材料产量稳定性为‘牡9141’>‘牡8182’>‘克新13号’>‘牡91320’>‘牡8153’>‘克新4号’>‘克新12号’,平均产量为‘牡8153’>‘克新13号’>‘牡91320’>‘牡8182’>‘克新4号’>‘牡9141’>‘克新12号’。综合品系及其对应类型对照品种的丰产性及稳定性,‘牡91320’、‘牡9141’整体表现优于对照;‘牡8153’的丰产性好,但稳定性不如对照,‘牡8182’的稳定性好,丰产性不如对照。AMMI模型很好地解释了产量性状的基因型效应、环境效应和基因型与环境互作效应。

Seven potato varieties（lines）, which were grown four replications in a randomized complete block design for three consecutive years, were analyzed for their yield stability using AMMI model. Sum of square for genetype, environment and genotype × environment accounted for 47.69%, 6.41% and 40.03% of the total sum of square, and all of these variation sources reached highly significance. The biplots indicated that yield stability for genotypes tested was： ＇Mu9141＇〉＇Mu8182＇〉＇Kexin 13＇〉＇Mu91320＇〉＇Mu8153＇〉＇Kexin 4＇〉＇Kexin 12＇, and the yield was： ＇Mu8153＇〉＇Kexin 13＇〉＇Mu91320＇〉＇Mu8182＇〉＇Kexin 4＇〉＇Mu9141＇〉＇Kexin 12＇. Considered based on breeding lines purpose and corresponding control variety, ＇Mu91320＇and ＇Mu9141＇ were superior to their corresponding control in both yield and yield stability; ＇Mu8153＇ was higher yielding, but less stable, however, ＇Mu8182＇ was higher stable, but less yielding than the control. AMMI model explained well the effects of genotype, environment and genotype × environment interaction on yield.