Growth of seedlings Jatropha curcas L. irrigated with saline water

  • Fábio santos Matos Universidade Estadual de Goiás (UEG)
  • Larissa Pacheco Borges Universidade Estadual de Goiás (UEG)
  • Ana Paula Pelosi Universidade Federal de Goiás
  • Aretha Medeiros Silva Universidade Estadual de Goiás
  • Mariana Siqueira do Carmo Universidade Estadual de Goiás
  • Daniela da Costa Vaz Universidade Estadual de Goiás
  • Rogério Nunes Gonçalves Universidade Estadual de Goiás
  • Thuanne Pires Ribeiro Universidade Estadual de Goiás

Abstract

The species Jatropha curcas is a rustic plant, adapted to several edaphoclimatic conditions, being constantly explored in marginal conditions, however, ensuring production will be greater with the use of irrigation and fertile soil, when it'll be necessary to research the possibility of its cultivation with saline water. Therefore the present study aims at assessing the effect of the electrical conductivity of irrigation water on the morphophysiological answers of seedlings from J. curcas L. The work was conducted in shade with 50% of solar radiation interception at the State University of Goiás. The experiment was set up following a completely randomized design with four treatments and five repetitions. Sowing occurred in four-liter containers containing soil, sand and manure in the ratio of 3: 1: 0.5 respectively. During the seedling stage (60 days), the plants were subjected to four treatments: plants irrigated daily with 150 ml of deionized water containing NaCl, and electrical conductivity of 0.0 dS m-1 (T1), 3 dS m-1 (T2), 6 dS m-1 (T3) and 9 dS m-1 (T4). The high concentration of salt reduced the free energy of the water, making it limiting. The water limitation caused a reduction in the leaf area and in the number of leaves, contributing to the reduction of perspiring area and the maintenance of tissue hydration. The high electrical conductivity of irrigation water reduced the seedling growth J. curcas, however, plants of J. curcas can be irrigated with saline water of conductivity less than or equal to 3 dS m-1 without significant damage to vegetative growth.

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Author Biographies

Fábio santos Matos, Universidade Estadual de Goiás (UEG)
Departamento de produção vegetal
Larissa Pacheco Borges, Universidade Estadual de Goiás (UEG)
Departamento de produção vegetal
Ana Paula Pelosi, Universidade Federal de Goiás
Departamento de produção vegetal
Aretha Medeiros Silva, Universidade Estadual de Goiás
Departamento de produção vegetal
Mariana Siqueira do Carmo, Universidade Estadual de Goiás
Departamento de produção vegetal
Daniela da Costa Vaz, Universidade Estadual de Goiás
Departamento de produção vegetal
Rogério Nunes Gonçalves, Universidade Estadual de Goiás
Departamento de produção vegetal
Thuanne Pires Ribeiro, Universidade Estadual de Goiás
Departamento de produção vegetal
Published
2013-10-03
How to Cite
Matos, F. santos, Borges, L. P., Pelosi, A. P., Silva, A. M., do Carmo, M. S., Vaz, D. da C., Gonçalves, R. N., & Ribeiro, T. P. (2013). Growth of seedlings Jatropha curcas L. irrigated with saline water . Bioscience Journal, 30(3). Retrieved from http://www.seer.ufu.br/index.php/biosciencejournal/article/view/18111
Section
Agricultural Sciences