应用AMMI模型分析冬性饲草型小黑麦品种稳定性

目的]研究饲草型小黑麦区域试验品种稳定性问题.方法]应用AMMI模型对冬性饲草型小黑麦区域试验产量数据进行分析,并结合稳定性参数Di(j)和双标图对鲜、干草产量的基因型、环境和基因型与环境(G×E)互作进行分析.结果]参试品系在各试点上总体适应性表现较强,6个参试品系中WH07 -2鲜草产量上表现出既高产又稳产,适宜于作为刈割青贮品种.结论]AMMI模型是分析基因型与环境(G×E)互作的有效方法,应用此方法对饲草型小黑麦区域试验品种(系)进行评价会更加科学完善.

Analysis of Stability of Forage Triticale Varieties with AMMI Model

【Objective】The aim of this research is to study the stability of the forage triticale varieties in regional trial in Xinjiang.【Method】AMMI(additive main effect and multiplicative interaction)model was employed to analyze the stability of yield with the application of the biplot map and stability parameter Di(j) in forage triticale regional yield trials.The paper discussed the genotype,environment and interactive effects of genotype by environment(G×E) of the triticale forage yield.【Result】The result showed that the adaptability of all the tested triticale varieties were optimal for the tested environments.The line WH07-2 was the most appropriate for high and stable fresh forage yield in the tested six varieties(lines).【Conclusion】AMMI model is an efficient method to analyze the interactive effects of genotype by environment(G×E) in crop regional yield trials.The stability and adaptability of varieties could make it possible to improve precise evaluation in regional trials based on AMMI model.