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- Title
Adaptability and stability of grain yield and maize tassel traits.
- Authors
Lixinski Silveira, Daniela; Cargnelutti Filho, Alberto; Maronez de Souza, Jéssica; Severo Trivisiol, Vinícius; Manfio Somavilla, Felipe
- Abstract
Due to the economic importance of maize, it is essential to evaluate the performance of genotypes under environmental variations (years, locations, and seasons). Consequently, researchers have scrutinized genotype-environment (G×E) interactions to ensure reliability in genotype recommendations. Furthermore, when a G×E interaction exists, adaptability and stability analysis can be performed. This analysis enables one to identify genotypes with predictable responses and adaptability to environmental variability. Hence, this study sought to determine if there is a G×E interaction and evaluate the response of 16 maize genotypes across seven environments through adaptability and stability analyses. Seven experiments were conducted with 16 maize genotypes using a randomized complete block design with three replications. Tassel length (TL), tassel branch number (TBN), tassel dry matter (TDM), and grain yield (GY) were evaluated. Individual and joint variance analyses were performed, along with the F-test at a 5% significance level. The complex parts of the interaction between genotypes and pairs of environments were estimated, followed by adaptability and stability analyses using the Eberhart and Russell method. A genotype-environment interaction was found for TL, TBN, TDM, and GY, indicating that genotypes respond differently in various environments. However, considering all four traits, there is no indication of the ideal genotype.
- Subjects
GRAIN yields; GENOTYPE-environment interaction; ANALYSIS of variance; BLOCK designs; GENOTYPES
- Publication
Ciência Rural, 2024, Vol 54, Issue 9, p1
- ISSN
0103-8478
- Publication type
Article
- DOI
10.1590/0103-8478cr20230395