Data/hora: 07/06/2024 01:36:21

Biblioteca(s): 	Embrapa Tabuleiros Costeiros.	
Data corrente: 	19/12/1995	
Data da última atualização: 	02/01/2012	
Título: 	EVALUATION of a rapid test for the hidden hunger of zinc in plants.	
Ano de publicação: 	1974	
Fonte/Imprenta: 	Plant and Soil, v. 40, p. 445-451, 1974.	
Idioma: 	Inglês	
Conteúdo: 	Fresh leaf discs/pieces of wheat, gram maize and mustard were incubated in a substrate consisting of 4ml 0.2M phosphate buffer (pH 6.8), 4ml 0.2M NaHCO3 and 0.2ml 0.002% bromthymol blue at 0 to 4c for 120-240 seconds. The conversion of light blue colour due to the activity of zinc dependent carbonic anhydrase into yellowish green and greenish yellow was used as an index for zinc deficiency and sufficiency, respectively, in the plant tissues. A correlation coefficient value of r=>+0.9 between the different parameters of rapid tissue test and standart enzyme extration method, indicated the feasibility of using the present method.	
Palavras-Chave: 	Cron; Fertilização; Maize.	
Thesagro: 	Milho; Zinco.	
Thesaurus Nal: 	zinc.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Tabuleiros Costeiros (CPATC)	
Exemplares: 	CPATC - (12740-1) - ADD - SP - DD -  -  -  - DIS