Data/hora: 02/06/2024 15:39:00

Biblioteca(s): | Embrapa Arroz e Feijão.
Tipo da produção científica: | Artigo em Periódico Indexado
Data corrente: | 16/08/2005
Data da última atualização: | 25/06/2020
Autoria: | FAGERIA, N. K.; BALIGAR, V. C.
Afiliação: | NAND KUMAR FAGERIA, CNPAF.
Título: | Phosphorus-use efficiency by corn genotypes.
Ano de publicação: | 1997
Fonte/Imprenta: | Journal of Plant Nutrition, New York, v. 20, n. 10, p. 1267-1277, 1997.
DOI: | 10.1080/01904169709365334
Idioma: | Inglês
Conteúdo: | Phosphorus (P) deficiency is a principal yield-limiting factor for annual crop production in acid soils of temperate as well as tropical regions. The objective of this study was to screen nine corn (Zea mays L.) genotypes at low (0 mg P kg-1), medium (75 mg P kg-1), and high (150 mg P kg-1) levels of P applied in an Oxisol. Plant height, root length, shoot dry weight, root dry weight, shoot-root ratio, P concentration in shoot and root, P uptake in root and shoot, and P-use efficiency parameters were significantly (P<0.01) influenced by P treatments. Significant genotype differences were found in plant height, shoot and root dry weight, P uptake in root and shoot, and P-use efficiency. Based on dry matter production and P&#8208;use efficiency, genotypes were classified as efficient and responsive, efficient and nonresponsive, nonefficient and responsive, and nonefficient and nonresponsive.
Thesagro: | Fósforo; Genótipo; Milho; Solo.
Thesaurus Nal: | corn; genotype; phosphorus; soil.
Categoria do assunto: | F Plantas e Produtos de Origem Vegetal
Registro original: | Embrapa Arroz e Feijão (CNPAF)
Exemplares: | CNPAF - (22831-1) - UPC - AP - DD - 1997 -  - 1997 - DIS