Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados Braz. J. Plant Physiol. (1) AGRIAMBI (1) Autor Blair,Matthew W. (1) Fernandes,Dirceu M. (1) Freitas,Lucas B. de (1) López-Marín,Hernán D. (1) Maia,Suelen C. M. (1) Pivetta,Laércio A. (1) Rao,Idupulapati M. (1) Mais... Palavra-chave Aluminum resistance (2) Abiotic stress (1) Acid soils (1) Aluminum susceptibility (1) Andean gene pool (1) Common bean (1) Oryza sativa L. (1) Root architecture (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2016 (1) 2009 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Identification of aluminum resistant Andean common bean (Phaseolus vulgaris L.) genotypes Braz. J. Plant Physiol. Blair,Matthew W.; López-Marín,Hernán D.; Rao,Idupulapati M.. Aluminum (Al) toxicity is the principal abiotic constraint in acid soils of the tropics. Common bean, meanwhile, is for the most part very sensitive to this stress although certain genotypes within the species show some level of resistance, justifying screening of germplasm from both the Andean and Mesoamerican genepools to identify better performing sources. The objective of this study was to evaluate 36 genotypes of common bean under hydroponic conditions to identify root morphological traits that could be associated with Al resistance. A total of five root traits (elongation rate of the primary root, total root length, root biomass, average root diameter and specific root length) were measured using a simple nutrient solution with or without Al (20 µM)... Tipo: Info:eu-repo/semantics/article Palavras-chave: Abiotic stress; Acid soils; Aluminum resistance; Andean gene pool; Common bean; Root architecture. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202009000400005 Tolerance of upland rice cultivars to aluminum and acidic pH AGRIAMBI Freitas,Lucas B. de; Fernandes,Dirceu M.; Pivetta,Laércio A.; Maia,Suelen C. M.. ABSTRACT Although the upland rice has been known by its moderate tolerance to aluminum, the presence of exchangeable aluminum in acidic soils may inhibit and compromise the adequate plant growth. However, there are few reports detailing modern cultivars used by Brazilian farmers with respect to their susceptibility to aluminum toxicity. This study aimed to characterize the cultivars currently used in the upland rice production with respect to their tolerance to aluminum and their growth under low pH conditions without aluminum. The treatments were arranged in a randomized block design, in a 2 x 9 factorial scheme: presence and absence of aluminum in the nutrient solution and nine upland rice cultivars (BRS Monarca, BRS Pepita, BRS Bonança, BRS Primavera,... Tipo: Info:eu-repo/semantics/article Palavras-chave: Oryza sativa L.; Aluminum susceptibility; Aluminum resistance. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016001000886 Registros recuperados: 2 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco