Data/hora: 06/06/2024 04:32:30

Biblioteca(s): | Embrapa Arroz e Feijão.
Tipo da produção científica: | Artigo em Periódico Indexado
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