Potential of dry matter yield from alfalfa germplasm in composing base populations.

The aim of this study was to obtain estimates of genetic parameters via meta-analysis and mixed models to evaluate the potential of the germplasm from Embrapa Pecuaria Sudeste for integration in breeding programs. Data on the dry matter yield of 77 accessions evaluated in 24 harvests were used. Descriptive analysis was performed for mixed model and meta-analytical estimates. The variances for each parameter were estimated. For the meta-analysis, variances were used as weighting measures, and the fixed and random models were tested. A diagonal structure was considered for the residual variance matrix. Mean dry matter yield ranged from 1019.5 to 2684 kg ha-1. The phenotypic, permanent environmental, and genotypic variances oscillated widely throughout the harvests, as well as heritability. Meta-analytical estimates proved to be an accurate and complementary approach to the mixed model analysis. Both mixed model and meta-analytical estimates indicated the breeding potential of the alfalfa germplasm.

Bibliographic Details

Main Authors:	COSTA, W. G. da, SANTOS, I. G. dos, SILVA JÚNIOR, A. C. da, CRUZ, C. D., NASCIMENTO, M., FERREIRA, R. de P., VILELA, D.
Other Authors:	WEVERTON GOMES DA COSTA, Universidade Federal de Viçosa; IARA GONÇALVES DOS SANTOS, Universidade Federal de Viçosa; ANTÔNIO CARLOS DA SILVA JÚNIOR, Universidade Federal de Viçosa; COSME DAMIÃO CRUZ, Universidade Federal de Viçosa; MOYSÉS NASCIMENTO, Universidade Federal de Viçosa; REINALDO DE PAULA FERREIRA, CPPSE; DUARTE VILELA, CNPGL.
Format:	Artigo de periódico biblioteca
Language:	Ingles English
Published:	2021-10-12
Subjects:	Longitudinal data, Genetic estimates, Estimativa genética, Dados longitudinais, Medicago Sativa, Alfafa, Meta-analysis,
Online Access:	http://www.alice.cnptia.embrapa.br/alice/handle/doc/1135248 http://dx.doi.org/10.1590/1984- 70332021v21n2a41
Tags:	Add Tag No Tags, Be the first to tag this record!