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- Title
Hydrogen peroxide as a mitigator of salt stress for melon seed germination.
- Authors
Rocha Limão, Marcelo Augusto; Batista Silva Rodrigues, Marília Hortência; da Silva Santos, Adriana; da Silva Barbosa, Luana; Pinheiro Lopes, Kilson; Fernandes dos Santos Dias, Denise Cunha
- Abstract
The effect of hydrogen peroxide has been very studied, but little is known on its effect on seed germination andinitial growth of melon trees under salt stress. In this context, the objective of this work was to evaluate the effectof hydrogen peroxide as a mitigator of salt stress on melon seed germination. The experiment was conductedin the Laboratory of Seeds and Seedlings of the Federal University of Campina Grande, in Pombal, PB, Brazil. Acompletely randomized design was used, in a 4×6 factorial arrangement consisting of times of seed imbibitionin H2O2 (0, 8, 16, and 24 hours) and irrigation water salinity levels (0.3, 1.2, 2.1, 3.0, 3.9, and 4.8 dS m-1), with fourreplications. Melon seeds of the commercial variety Imperial-45 were used. The H2O2 solution was prepared from a 1 mmol L-1 H2O2 solution, which was diluted to reach the concentration of 10 μmol L-1. The seeds wereplaced in a beaker and subjected to imbibition with 100 ml of the solution for the different times studied. Thevariables evaluated were: germination percentage, first germination counting, germination speed index, meangermination speed, mean germination time, and radicle length. The application of H2O2 solution to seeds for 16hours mitigates the negative effects caused by salt stresses by up to 2.2 dS m-1; however, the application of H2O2solution for 24 hours is harmful to the germination process of melon seeds.
- Subjects
BRAZIL; GERMINATION; HYDROGEN peroxide; MELONS; ELECTRIC conductivity; IRRIGATION water; SALT; PAPAYA
- Publication
Comunicata Scientiae, 2022, Vol 13, p1
- ISSN
2176-9079
- Publication type
Article
- DOI
10.14295/CS.v13.3798