Data/hora: 21/06/2024 04:58:00

Biblioteca(s): 	Embrapa Unidades Centrais.	
Data corrente: 	05/08/2002	
Data da última atualização: 	14/06/2019	
Autoria: 	PURCINO, H. M. A.; PURCINO, A. A. C.; LYND, J. Q.	
Título: 	Soil fertility effects governing growth and nodule parameters at anthesis of two winged bean cultivars with a typic eutrustox.	
Ano de publicação: 	1981	
Fonte/Imprenta: 	Pesquisa Agropecuária Brasileira, Brasília, DF, v. 16, n. 5, p. 633-644, set./out. 1981	
Idioma: 	Inglês	
Notas: 	Título em português: Efeitos da fertilidade do solo no crescimento e parâmetros nodulares durante a antese em duas cultivares de feijão-alado com um typic eutrustox.	
Conteúdo: 	Winged Bean cultivars,'fingeWB-21-8 and Siempre WB-12-11, were grown with complete fáctorial soil fertility experiments for P, K, Ca, Mg, and S combinationson a Typic Eutrustox (dark-red latosol) from Central Brazil. Nitrogenase (C2H2 reduction), growth, and associated nodule enzyme parameters and composition were determined at anthesis. Highly significant increases in nitrogenase activity levels resulted with applied P and K for both cultivars with significant increases for Ca additions. Growth,,nodulatíon and cytosol enzyme activity levels of GOT, GDH, GS and GOGAT all increased significantly with applied P, with the exception of GDH to applied K. a KG was increased to highly significant levels with K treatment. Cytosol composition was increased sígnificantly for each plant nutrient element contained in the treatment combinations. Highly signíficant inverse retroversion existed for K and Na. Na was negatively correlated with every parameter determined in these studies for both cultivars. Practical application of these data include the requirement for adequate available soil K and P for increased symbiotic N fixation and NH4'incorporation into amino acid components of the host legume symbionÊ	
Palavras-Chave: 	symbiotic nitrogen fixation; tropical edible legume.	
Thesagro: 	Nitrogenase; Psophocarpus Tetragonolobus.	
Categoria do assunto: 	--	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/item/198563/1/Soil-fertility-effects-governing-growth.pdf	
Registro original: 	Embrapa Unidades Centrais (AI-SEDE)	
Exemplares: 	AI-SEDE - (22953-1) - UPE - AP - PP - 630.72081 - P474 -  - DIS