Interdimensional relations and yield of jatropha (Jatropha curcas L.) in silvopastoral system

Authors

  • Rubens Fey Universidade Federal da Fronteira Sul
  • Ubirajara Contro Malavasi Universidade Estadual do Oeste do Paraná
  • Marlene Matos Malavasi Universidade Estadual do Oeste do Paraná
  • Deisinara Giane Schulz Universidade Estadual do Oeste do Paraná
  • João Alexandre Lopes Dranski Universidade Estadual do Oeste do Paraná

DOI:

https://doi.org/10.5433/1679-0359.2014v35n2p613

Keywords:

Morphometry, Production, Estimate.

Abstract

Plant morphometric variables are used to estimate interdimensional relations, and their analysis is important to obtain information on the plant’s stability, vitality, and yield. The aim of this study was to determine the morphometric variables, interdimensional relations, and the yield of jatropha grown in a silvopastoral system. Forty-five trees were measured for three years following cultivation in Latossolo, West Paraná. The characteristics under analysis were as follows: stem diameter, height, crown diameter, crown length, crown area, crown proportion, slenderness ratio, salience index, coverage index, crown formation, number of branches, and yield. The assessments were carried out between January 2011 and July 2011. Stem diameter showed the best correlation with jatropha crop yield. For the same variable, significant regression models were obtained for the following: plant height, crown diameter, slenderness ratio, and coverage index.

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Author Biographies

Rubens Fey, Universidade Federal da Fronteira Sul

Prof. Dr. da Universidade Federal da Fronteira Sul, UFFS, Laranjeiras do Sul, PR.

Ubirajara Contro Malavasi, Universidade Estadual do Oeste do Paraná

Prof. Dr. do Programa de Pós Graduação em Agronomia/PPGA da Universidade Estadual do Oeste do Paraná, UNIOESTE, Marechal Cândido Rondon, PR.

Marlene Matos Malavasi, Universidade Estadual do Oeste do Paraná

Profª Drª do Programa de Pós Graduação em Agronomia/PPGA da Universidade Estadual do Oeste do Paraná, UNIOESTE, Marechal Cândido Rondon, PR.

Deisinara Giane Schulz, Universidade Estadual do Oeste do Paraná

Discente do Programa de Pós Graduação em Agronomia/PPGA, UNIOESTE, Marechal Cândido Rondon, PR.

João Alexandre Lopes Dranski, Universidade Estadual do Oeste do Paraná

Pesquisador do Programa de Pós Doutorado, UNIOESTE, Marechal Cândido Rondon, PR.

Published

2014-04-28

How to Cite

Fey, R., Malavasi, U. C., Malavasi, M. M., Schulz, D. G., & Dranski, J. A. L. (2014). Interdimensional relations and yield of jatropha (Jatropha curcas L.) in silvopastoral system. Semina: Ciências Agrárias, 35(2), 613–624. https://doi.org/10.5433/1679-0359.2014v35n2p613

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