Data/hora: 01/06/2024 19:44:26

Biblioteca(s): | Biblioteca Rui Tendinha.
Data corrente: | 15/01/2015
Data da última atualização: | 15/01/2015
Autoria: | MARTINS, L. D.; TOMAZ, M. A.; AMARAL, J. F. T. do.; BRAGANÇA, S. M.; RODRIGUES, W. N.; REIS, E. F. dos.
Afiliação: | Lima Deleon Martins; Marcelo Antonio Tomaz; José Francisco Teixeira do Amaral; Scheilla Marina Bragança, Incaper; Wagner Nunes Rodrigues; Edvaldo Fialho dos Reis.
Título: | Nutritional efficiency in clones of Conilon coffee for phosphorus.
Ano de publicação: | 2013
Fonte/Imprenta: | Journal of Agricultural Science; v. 5, n. 1, 2013.
Páginas: | 11 p.
DOI: | 10.5539/jas.v5n1p130
Idioma: | Português
Conteúdo: | The objective of this study was to evaluate the nutritional efficiency of phosphorus in clones of conilon coffee, in greenhouse condition. A factorial design 13 x 4 was used, with three replications, and the factors being: 13 clones that compose the clonal cultivar "Vitória Incaper 8142" and four levels of phosphorus fertilization (0%, 50%, 100% and 150% of the recommended P2O5 for the culture) in a completely randomized design (CRD). The cultivation consisted of a period of 150 days, then in each experimental unit, the values of dry matter and phosphorus content of the vegetative parts were obtained. The indices of nutritional efficiency (absorption, translocation and utilization) were calculated. The clones of conilon coffee showed different behavior for all variables at each level of fertilization with P2O5. The mass of dry weight, phosphorus content, and efficiency of phosphorus utilization of the clones increase linearly with the increase of P2O5. The efficiency of phosphorus absorption, depending on the levels of P2O5 applied to the clones of conilon coffee, has set to a quadratic model. The translocation efficiency of phosphorus, depending on the levels of P2O5 applied, is different for clones of conilon coffee, with a linear characteristic and also quadratic.
Palavras-Chave: | Café Conilon.
Thesaurus NAL: | Coffea canephora; Mineral nutrition; Utilization efficiency.
Categoria do assunto: | --
Registro original: | Biblioteca Rui Tendinha (BRT)
Exemplares: | BRT - (5055-1) - UMT - AP - DD -  -  -  - DIS