Data/hora: 13/06/2024 01:52:04

Biblioteca(s): | Embrapa Acre; Embrapa Cerrados.
Data corrente: | 10/02/2017
Data da última atualização: | 02/07/2021
Autoria: | FERNANDES, F. D.; CARVALHO, M. A.; MACIEL, G. A.; ASSIS, G. M. L. de; BRAGA, G. J.
Afiliação: | FRANCISCO DUARTE FERNANDES, CPAC; MARCELO AYRES CARVALHO, CPAC; GIOVANA ALCANTARA MACIEL, CPAC; GISELLE MARIANO LESSA DE ASSIS, CPAF-Acre; GUSTAVO JOSE BRAGA, CPAC.
Título: | Forage yield and nutritive value of Arachis spp. genotypes in the Brazilian savanna.
Ano de publicação: | 2017
Fonte/Imprenta: | Tropical Grasslands - Forrajes Tropicalles, Cali, v. 5, n. 1, p. 19-28, Jan. 2017.
Páginas: | p. 19-28.
ISSN: | 2346-3775
DOI: | 10.17138/TGFT(5)19-28

Idioma:

Inglês
Português

Conteúdo: | Forage yield, nutritive value, ground cover and mineral concentration of 10 genotypes of Arachis spp. were evaluated over 3 years in Planaltina, Federal District, Brazil. Experimental plots were arranged in a randomized complete block design with 4 replications. Treatments were 5 genotypes of A. pintoi (accessions 2, 4, 5, 6 and 8), 2 genotypes of A. repens (accessions 1 and 7), 1 hybrid A. pintoi × A. repens (accession 3) and 2 A. pintoi cultivars, BRS Mandobi and Belmonte. All genotypes established well and achieved good ground cover in the first year. Cultivar Belmonte and accessions 2 and 4 produced the highest DM yields (means of 8.8, 8.5 and 8.8 t DM/ha/yr, respectively) throughout, while cv. BRS Mandobi and accession 6 were the worst (5.7 and 5.6 t DM/ha/yr). Most genotypes maintained ground cover above 80% throughout the study but cv. BRS Mandobi plus accessions 6 and 8 had declined to 60% or less by the third year. Mean crude protein concentration overall was 166 g/kg with a range of 154&#8210;182 g/kg among genotypes. There was no major genotypic variation in mineral concentrations, which in all cases were considered marginal to adequate for tropical forage legumes. In conclusion, genotypes 2 and 4 (accessions BRA-039799 and BRA-039187, respectively) of A. pintoi are considered the most promising forage peanut options under the edaphoclimatic conditions of the experimental site. More effort is needed to improve seed set in these accessions to increase adoption by farmers. Their persistence under grazing and impact on production should also be demonstrated.
Palavras-Chave: | Aclimatación; Amendoim forrageiro; Arachis pintoi cv Belmonte; Arachis pintoi cv Mandobi; Cacahuetes forrajeros; Digestibilidad; Factores ambientales; Forage peanuts; Leguminosas forrajeras; Nutrición animal; Planaltina (DF).
Thesagro: | Aclimatação; Cerrado; Condição ambiental; Digestibilidade; Forrageira tropical; Leguminosa forrageira; Nutrição animal; Planta forrageira; Proteína vegetal; Variedade resistente.
Thesaurus Nal: | Acclimation; Animal nutrition; Arachis pintoi; Digestibility; Environmental factors; Forage legumes; Vegetable protein.

Categoria do assunto:

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F Plantas e Produtos de Origem Vegetal

URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/170404/1/26440.pdf
Registro original: | Embrapa Acre (CPAF-AC)

Exemplares:

CPAC - (35760-1) - UPC - AP - PP - S2223 -  - S2223 - DIS
CPAF-AC - (26440-1) - UPC - AP - DD -  -  -  - DIS