Evaluation of adaptability and stability for iron, zinc and protein content in cowpea genotypes using GGE biplot approach.
Evaluation of adaptability and stability for iron, zinc and protein content in cowpea genotypes using GGE biplot approach.
Author(s): ARAÚJO, M. dos S.; ARAGÃO, W. F. L. de; SANTOS, S. P. dos; FREITAS, T. K. T.; SARAIVA, V. da C.; SILVA, K. J. D. e; DIAS, L. A. dos S.; ROCHA, M. de M.
Summary: Cowpea is a widely cultivated crop in the world. Biofortification strategies aim to reduce mineral and protein deficiencies, especially among the poorest people. The aim of this study was to estimate adaptability and stability of cowpea genotypes for iron, zinc and protein contents, through GGE biplot analysis. Twenty cowpea genotypes were evaluated in the municipalities of Piauí Monsenhor Hipolito, Pio IX and S~ao Miguel do Tapuio, under rainfed conditions. The experimental design was a randomized block design with four replications. The traits evaluated were grain yield, iron, zinc and protein contents in dry grains. Iron (Fe) and zinc (Zn) were determined by flame atomic absorption spectrophotometer, and protein contents by Kjeldahl methods. Adaptability and stability were evaluated by GGE biplot analyses.
Publication year: 2022
Types of publication: Journal article
Unit: Embrapa Mid-North
Observation
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