Initial growth and compatible solutes concentration in seedlings of two genotypes of Psidium araca Raddi (Myrtaceae) in response to water suppression

Autores

  • Hugo Rafael Bentzen Santos Laboratório Solo-Água-Planta, Departamento de Agronomia, Universidade Federal Rural de Pernambuco. Rua Manoel de Medeiros, s/n, Dois Irmãos, Recife, Pernambuco, Brasil. CEP: 52171-900
  • Elizamar Ciríaco da Silva Laboratório de Fisiologia e Ecofisiologia Vegetal, Departamento de Biologia, Universidade Federal de Sergipe. Av. Marechal Rondon, s/n, Jardim Rosa Elze, São Cristóvão, Sergipe, Brasil. CEP: 49.100-000.
  • Rejane Jurema Mansur Custódio Nogueira Laboratório de Fisiologia Vegetal, Departamento de Biologia, Universidade Federal Rural de Pernambuco. Rua Manoel de Medeiros, s/n, Dois Irmãos, Recife, Pernambuco, Brasil. CEP: 52171-900.

DOI:

https://doi.org/10.22478/ufpb.1981-1268.2017v11n4.35469

Resumo

The physiological characterization of plants is of great importance to the selection of suitable genotypes tolerant of low water availability. Therefore, the aim of this study was to evaluate the influence of water deficit on growth and compatible solutes concentration of two genotypes of Psidium araca Raddi seedlings. The IPA 10/2 and IPA 16/2 genotypes behaved similarly in terms of number of leaves, stem diameter and the increase of root formation over shoot formation under water deficit. IPA 10/2 produced higher total dry matter; however, IPA 16/2 accession produced higher root-shoot ratio, carbohydrates and free proline contents, conferring to IPA 16/2 a greater ability to grow and survive in environments subjected to low water availability.

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Publicado

2017-07-30

Como Citar

SANTOS, H. R. B.; SILVA, E. C. da; NOGUEIRA, R. J. M. C. Initial growth and compatible solutes concentration in seedlings of two genotypes of Psidium araca Raddi (Myrtaceae) in response to water suppression. Gaia Scientia, [S. l.], v. 11, n. 4, 2017. DOI: 10.22478/ufpb.1981-1268.2017v11n4.35469. Disponível em: https://periodicos.ufpb.br/index.php/gaia/article/view/35469. Acesso em: 26 dez. 2024.

Edição

v. 11 n. 4 (2017)

Seção

Ciências Ambientais