African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6860

Full Length Research Paper

Ecophysiological and biochemical behavior in young plants of Parkia gigantocarpa Ducke subjected to waterlogging conditions

Waldemar Viana de Andrade Júnior
  • Waldemar Viana de Andrade Júnior
  • Instituto de Ciências Agrárias, Universidade Federal Rural da Amazônia, Belém, Pará, Brazil.
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Benedito Gomes dos Santos Filho
  • Benedito Gomes dos Santos Filho
  • Instituto de Ciências Agrárias, Universidade Federal Rural da Amazônia, Belém, Pará, Brazil.
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Cândido Ferreira de Oliveira Neto
  • Cândido Ferreira de Oliveira Neto
  • Estudo da Biodiversidade de Plantas Superiores, Universidade Federal Rural da Amazônia, Belém, Pará, Brazil.
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Angelo Cleiton da Costa Pereira
  • Angelo Cleiton da Costa Pereira
  • Instituto de Ciências Agrárias, Universidade Federal Rural da Amazônia, Belém, Pará, Brazil.
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Raimundo Thiago Lima da Silva
  • Raimundo Thiago Lima da Silva
  • Estudo da Biodiversidade de Plantas Superiores, Universidade Federal Rural da Amazônia, Belém, Pará, Brazil.
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Ismael de Jesus Matos Viégas
  • Ismael de Jesus Matos Viégas
  • Estudo da Biodiversidade de Plantas Superiores, Universidade Federal Rural da Amazônia, Belém, Pará, Brazil.
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Kerolém Prícila Sousa Cardoso
  • Kerolém Prícila Sousa Cardoso
  • Estudo da Biodiversidade de Plantas Superiores, Universidade Federal Rural da Amazônia, Belém, Pará, Brazil.
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Luma Castro de Souza
  • Luma Castro de Souza
  • Estudo da Biodiversidade de Plantas Superiores, Universidade Federal Rural da Amazônia, Belém, Pará, Brazil.
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Tamires Borges de Oliveira
  • Tamires Borges de Oliveira
  • Estudo da Biodiversidade de Plantas Superiores, Universidade Federal Rural da Amazônia, Belém, Pará, Brazil.
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Ricardo Shigueru Okumura
  • Ricardo Shigueru Okumura
  • Estudo da Biodiversidade de Plantas Superiores, Universidade Federal Rural da Amazônia, Belém, Pará, Brazil.
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  •  Received: 29 September 2015
  •  Accepted: 12 November 2015
  •  Published: 28 January 2016

Abstract

The Parkia gigantocarpa is a neotropical tree that naturally occurs in terra firme forest and floodplain. The aim of the study was to evaluate the physiological and biochemical behavior in young plants of P. gigantocarpa subjected to waterlogging conditions. The waterlogging was imposed at approximately 5 cm above the blade surface of the soil using pots with a capacity of 14 kg of substrate. The experimental design was completely randomized with two water conditions (control and waterlogging) combined with five evaluation times (0, 4, 8, 12 and 16-days waterlogging conditions). The variables evaluated were: Predawn water potential (pΨ); the foliar xylem water potential (xΨ); hydraulic conductivity; concentration of nitrate; nitrate-reductase activity (NRA); glutamine-synthetase (GS); total soluble amino acids; proline; glycine-betaine; alcohol-dehydrogenase (ADH) and lactate-dehydrogenase activity (LDH). The significant reduction in xΨ and hydraulic conductivity continued until the 8th day in plants subjected to waterlogging, with subsequent stabilization. The concentration of nitrate, NRA, GS, and total soluble amino acids reduced significantly, in the leaves of plants subjected to waterlogging. The waterlogging increased the proline and glycine-betaine, mainly, in the leaves. The ADH activity was significantly higher in the root of the flooded plants, especially, on the 16th day of flooding. In the same period, the LDH activity showed the highest values, mainly, in the leaves of flooded plants. The results showed susceptibility of young plants of P. gigantocarpa subject to waterlogging conditions.

 

Key words: Water potential, proline, glycine-betaine.

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