Data/hora: 08/06/2024 07:48:36

Biblioteca(s): | Embrapa Acre; Embrapa Gado de Corte.
Data corrente: | 03/06/2022
Data da última atualização: | 03/06/2022
Autoria: | JANK, L.; ANDRADE, C. M. S. de; MACIEL, G. A.; BARBOSA, R. A.; BRAGA, G. J.; MACEDO, M. C. M.; VALÉRIO, J. R.; VERZIGNASSI, J. R.; ZIMMER, A. H.; FERNANDES, C. D.; SANTOS, M. F.; SIMEÃO, R. M.
Afiliação: | LIANA JANK, CNPGC; CARLOS MAURICIO SOARES DE ANDRADE, CPAF-AC; GIOVANA ALCANTARA MACIEL, CPAC; RODRIGO AMORIM BARBOSA, CNPGC; GUSTAVO JOSE BRAGA, CPAC; MANUEL CLAUDIO MOTTA MACEDO, CNPGC; JAQUELINE ROSEMEIRE VERZIGNASSI, CNPGC; ADEMIR HUGO ZIMMER, CNPGC; CELSO DORNELAS FERNANDES, CNPGC; MATEUS FIGUEIREDO SANTOS, CNPGC; ROSANGELA MARIA SIMEAO, CNPGC.
Título: | BRS Quênia and BRS Tamani: new Panicum maximum Jacq. hybrid cultivars in Brazil.
Ano de publicação: | 2021
Fonte/Imprenta: | In: INTERNATIONAL GRASSLAND CONGRESS, 24., INTERNATIONAL RANGELAND CONGRESS, 11., 2020, Kenya. Sustainable use of grassland and rangeland resources for improved livelihoods. Proceedings... Kenya: Kenya Agricultural and Livestock Research Organization, 2021. p. 218-222.
Idioma: | Inglês
Conteúdo: | Since 1982, Embrapa Beef Cattle in Campo Grande, MS, Brazil develops a Panicum maximum Jacq. breeding program based on teh germplasm collected abd assembled by IRD (Institute de Recherche pour le Developpment) and received through a cooperation-agreement with IRD. The germoplasm was evaluated and four cultivars were released directly from the germplasm: cultivars Tanzânia, Mombaça and BRS Zuri. Breeding began in 1990 and involved crosses between sexual plants and selected apomictic accessions. The program consists of evaluation followed by selection of hybrids in plots with replications, evaluation of the selected hybrids in national network experiments in diverse regions and then evaluation of the few selected hybrids under grazing. Hybrids are also evaluated for disease and insect resistances and abiotic stresses. Seeds are multiplied between each evaluation phase. The whole process takes from 10 to 20 years for the release of superior cultivars. Recently, Embrapa released two hybrid cultivars. BRS Tamani, a short, very leafy and high-tillering cultivar, and BRS Quênia, a medium height, very leafy productive cultivar. Both cultivars are recommended for medium to high fertility light soils, corrected for soil nutrients, and for rotationally grazed management. BRS Tamani, because of its short stature and quality is well indicated for cattle weaning. Both cultivars are tolerant to all the spittlebugs present in Brazil. They are not suited for waterlogged soils. Compared to the traditional cultivars in Brazil, these two cultivars showed improved digestibility and crude protein and greater animal daily gains and BRS Quênia also provided higher liveweight gain per area.
Palavras-Chave: | BRS Quênia; BRS Tamani; Características genéticas; Cattle performance; Fitomejoramiento; Guineagrass; Nueva variedad; Pastos forrajeros; Rendimiento del forraje; Resistencia a la enfermedad; Resistencia a las plagas; Yield.
Thesagro: | Capim Colonião; Germoplasma; Gramínea Forrageira; Melhoramento Genético Vegetal; Panicum Maximum; Rendimento; Seleção Genética; Variedade Resistente.
Thesaurus Nal: | Disease resistance; Forage; Forage grasses; Forage yield; Genetic traits; Germplasm; Megathyrsus maximus; New variety; Pest resistance; Plant breeding.

Categoria do assunto:

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G Melhoramento Genético

URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1143728/1/IGC-2021-BRS-Quenia-and-BRS-Tamani.pdf
Registro original: | Embrapa Gado de Corte (CNPGC)

Exemplares:

CNPGC - (17802-1) - UPC - AA - DD -  -  -  - DIS
CPAF-AC - (27323-1) - UPC - AA - DD -  -  -  - DIS