A study on genotype x environment interactions for the multiple traits of maize hybrids in China
文献类型： 外文期刊
作者： Yue, Haiwang 1 ; Jiang, Xuwen 2 ; Wei, Jianwei 1 ; Xie, Junliang 1 ; Chen, Shuping 1 ; Peng, Haicheng 1 ; Bu, Junzhou 1 ;
作者机构： 1.Hebei Acad Agr & Forestry Sci, Dryland Farming Inst, Hebei Prov Key Lab Crops Drought Resistance Res, Hengshui 053000, Hebei, Peoples R China
2.Qingdao Agr Univ, Maize Res Inst, Coll Agron, Qingdao 266109, Shandong, Peoples R China
期刊名称：AGRONOMY JOURNAL （ 影响因子：2.24； 五年影响因子：2.829 ）
ISSN： 0002-1962
年卷期：
页码：
收录情况： SCI
摘要： The correct interpretation of the adaptability and stability of maize (Zea mays L.) hybrids in different ecological environments is very important for plant breeders. Additive main effect and multiplicative interaction model and genotype main effects and genotype x environment interaction biplot are the two most popular methods in the analysis of genotype x environment interaction in multienvironment trials. We conducted an experiment designed to examine and evaluate the adaptability and stability of four agronomic traits of 19 tested maize genotypes in two consecutive growth cycles across seven provinces including 37 locations using a randomized completely block design with three replicates. The combined ANOVA for all traits showed that the effect of genotype, environment, and genotype x environment interaction were significant at 0.1% probability levels. In order to evaluate multiple agronomic traits more accurately, multitrait stability index (MTSI) as an emerging selection method based on mean performance and stability was adopted. Agronomic trait grain yield (GY) was positively correlated with grain weight per ear and growth period. In addition, it was also found that GY and bar tip length showed obvious negative correlation. The MTSI is very helpful for breeders who hope to select mean performance and stability based on a variety of agronomic traits because it provides a convenient selection process while taking into account the relevant results of the traits.
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