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Nutritional Efficiency in Clones of Conilon Coffee for Phosphorus

Author

Listed:
  • Lima Martins
  • Marcelo Tomaz
  • José Francisco Amaral
  • Scheilla Bragança
  • Wagner Rodrigues
  • Edvaldo Reis

Abstract

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.

Suggested Citation

  • Lima Martins & Marcelo Tomaz & José Francisco Amaral & Scheilla Bragança & Wagner Rodrigues & Edvaldo Reis, 2012. "Nutritional Efficiency in Clones of Conilon Coffee for Phosphorus," Journal of Agricultural Science, Canadian Center of Science and Education, vol. 5(1), pages 130-130, December.
    • Handle: RePEc:ibn:jasjnl:v:5:y:2012:i:1:p:130
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    References listed on IDEAS

    as
    1. José Amaral & Lima Martins & Bruno Laviola & Leonardo Christro & Marcelo Tomaz & Wagner Rodrigues, 2012. "A differential Response of Physic Nut Genotypes Regarding Phosphorus Absorption and Utilization is Evidenced by a Comprehensive Nutrition Efficiency Analysis," Journal of Agricultural Science, Canadian Center of Science and Education, vol. 4(12), pages 164-164, November.
    2. Oladiran Olaleye & Fagbola Olajire & Abaidoo Robert C. & Ikeorah Nnenna, 2012. "Phosphorus Response Efficiency in Cowpea Genotypes," Journal of Agricultural Science, Canadian Center of Science and Education, vol. 4(1), pages 1-81, January.
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    1. José Amaral & Lima Martins & Bruno Laviola & Leonardo Christro & Marcelo Tomaz & Wagner Rodrigues, 2012. "A differential Response of Physic Nut Genotypes Regarding Phosphorus Absorption and Utilization is Evidenced by a Comprehensive Nutrition Efficiency Analysis," Journal of Agricultural Science, Canadian Center of Science and Education, vol. 4(12), pages 164-164, November.

    More about this item

    JEL classification:

    • R00 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General - - - General
    • Z0 - Other Special Topics - - General

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