Data/hora: 05/06/2024 17:50:12

Biblioteca(s): 	Embrapa Arroz e Feijão.	
Data corrente: 	05/07/2005	
Data da última atualização: 	25/06/2020	
Autoria: 	FAGERIA, N. K.; BALIGAR, V. C.	
Afiliação: 	NAND KUMAR FAGERIA, CNPAF; V. C. BALIGAR, USDA.	
Título: 	Upland rice genotypes evaluation for phosphorus use efficiency.	
Ano de publicação: 	1997	
Fonte/Imprenta: 	Journal of Plant Nutrition, New York, v 20, n. 4/5, p. 499-509, May/june, 1997.	
Idioma: 	Inglês	
Conteúdo: 	Phosphorus (P) deficiency is one of the most important yield-limiting factors in acid soils in various parts of the world. The objective of this study was to evaluate the growth and P-use efficiency of 20 upland rice (Oryza sativa L.) genotypes at low (0 mg P kg-1), medium (75 mg P kg-1), and high (150 mg P kg-1) levels of applied P on an Oxisol. Plant height, tillers, shoot and root dry weight, shoot-root ratio, P concentration in root and shoot, P uptake in root and shoot, and P-use efficiency were significantly (P<0.01) affected by level of soil P as well as genotype. Shoot weight and P uptake in shoot were found to be the plant parameters most sensitive to P deficiency, suggesting that these two parameters may be most suitable for screening rice genotypes for P-use efficiency under greenhouse conditions.	
Thesagro: 	Arroz; Fósforo; Genótipo; Oryza sativa.	
Categoria do assunto: 	F Plantas e Produtos de Origem Vegetal	
Registro original: 	Embrapa Arroz e Feijão (CNPAF)	
Exemplares: 	CNPAF - (22744-1) - UPC - AP - PP - 1997 -  - 1997 - DIS