北方农业学报2025，Vol.53Issue(1)：38-47,10.DOI:10.12190/j.issn.2096-1197.2025.01.05
基于不同统计模型和方法评价青贮玉米品种稳定性
Evaluation of stability of silage maize varieties using different statistical models and method
摘要
Abstract
[Objective]To objectively evaluate the high yield,stability,and adaptability of silage maize varieties,and provide reference for the promotion of silage maize varieties.[Methods]Shukla model,Eberhart Russell model,AMMI model,and RSD method were used to comprehensively analyze the biological dry weight of 9 silage maize varieties(Chengdan 623,Liang 2020,Chengqing 3211,Chuandan 2110,Le1999,Chengdan 768,Miandan 968,NanW3465,Yayu silage No.8)in 9 different ecological environments including Yibin City,Leshan City,and Mianyang City in Sichuan Province in 2022.[Results]Liang 2020 and Chengdan 623 had relatively high biological dry weight,with 17 007.75 and 16 664.55 kg/hm2,which were 11.39%and 9.14%increased compared to Yayu silage No.8(CK).The Shukla variance of genotype and environment interaction(G×E)was small,with values of 5 332.98 and 2 520.75.The RSD value was small,RSDG2=0.130 1 and RSDG1=0.114 5.The reaction parameters were all less than 1,with bG1=0.919 1 and bG2=0.951 9.There was no significant difference(P＞0.05)between the stability parameter S2di and the experimental error;the stability parameter Di value was low,with DG1=7.39 and DG2=10.12.From the environmental index of each test site,it could be seen that Dazhou test site had the highest with IE9=275.96,followed by Nanchong test site with IE4=253.76,which was the most favorable for variety performance.The maximum discriminant power DE5 of each test site was 17.74,and the minimum was 1.84,indicating that the Bazhong test site had the strongest discriminant power,while the Ya'an test site had the weakest discriminant power.[Conclusion]Liang 2020 and Chengdan 623 are high yield,stable,and widely adaptable silage maize varieties that can be widely promoted and applied.Bazhong test site is suitable for efficiently selecting high-yield and stable silage maize varieties,while Ya'an test site has weak discernment and is not suitable for efficiently selecting high-quality silage maize varieties.关键词
青贮玉米/生物干重/稳定性/统计模型和方法Key words
Silage maize/Biological dry weight/Stability/Statistical models and method分类
农业科学引用本文复制引用
魏翠霞,李锐,文刚,郭威,冯傲智,苟才明..基于不同统计模型和方法评价青贮玉米品种稳定性[J].北方农业学报,2025,53(1):38-47,10.基金项目
宜宾学院起航项目(412-2023QH17) （412-2023QH17）
