Data/hora: 06/06/2024 01:35:32

Biblioteca(s): | Embrapa Acre.
Data corrente: | 30/08/2023
Data da última atualização: | 30/08/2023
Autoria: | MIQUELONI, D. P.; ASSIS, G. M. L. de; BEBER, P. M.
Afiliação: | DANIELA POPIM MIQUELONI, UNIVERSIDADE FEDERAL DO ACRE; GISELLE MARIANO LESSA DE ASSIS, CPAF-AC; PAULO MÁRCIO BEBER, INSTITUTO FEDERAL DE EDUCAÇÃO, CIÊNCIA E TECNOLOGIA DO ACRE.
Título: | Forage peanut genetic variability: multi-trait selection for forage production and ornamental purposes.
Ano de publicação: | 2023
Fonte/Imprenta: | Acta Scientiarum. Agronomy, v. 45, e61163, 2023.
ISSN: | 1807-8621
DOI: | 10.4025/actasciagron.v45i1.61163
Idioma: | Inglês
Conteúdo: | The selection of superior genotypes considering several traits simultaneously allows the release of more adapted, productive, and nutritive cultivars. To select forage peanut genotypes for use as animal feed and for ornamental purposes, 67 genotypes were evaluated. Twelve agronomic and nutritive value traits were evaluated in three temporally separated trials: a randomized complete block design. The mixed model method (Restricted Maximum Likelihood/Best Linear Unbiased Prediction (REML/BLUP)) was employed for estimating genetic parameters and predicting genotypic values, which were used in the selection indexes. The selection criteria considered vegetative and seed propagation traits corresponding to the use of forage peanut as animal feed and for ornamental purposes. Seed productivity was also evaluated and correlated with other traits. Genetic variability with high heritability in seed production was observed. Plant vigor, ground cover, and dry matter yield were negatively correlated with seed production. Among the genotypes evaluated, there is a possibility of selecting 14 and 16 genotypes corresponding to seed propagation for animal feed and ornamental purposes, respectively. For vegetative propagation, there are 16 and 14 promising genotypes for animal feed and ornamental purposes, respectively. Vegetatively propagated genotypes generally performed better in terms of agronomic traits related to feed production.
Palavras-Chave: | Acre; Amazonia Occidental; Amazônia Ocidental; Amendoim forrageiro; Arachis repens; Cacahuetes forrajeros; Conservación del germoplasma; Embrapa Acre; Fitomejoramiento; Forage peanut; Índice de selección; Leguminosas forrajeras; Rio Branco (AC); Variación genética; Western Amazon.
Thesagro: | Banco de Germoplasma; Índice de Seleção; Leguminosa Forrageira; Melhoramento Genético Vegetal; Variação Genética.
Thesaurus Nal: | Arachis pintoi; Forage legumes; Genetic variation; Germplasm conservation; Plant breeding; Selection index.
Categoria do assunto: | G Melhoramento Genético
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1156225/1/27500.pdf
Registro original: | Embrapa Acre (CPAF-AC)
Exemplares: | CPAF-AC - (27500-1) - UPC - AP - DD -  -  -  - DIS