Work

Effect of Exogenous Melatonin on Seed Germination and Seedling Growth in Melon (Cucumis melo L.) Under Salt Stress

Year: 2019

Type: article

Abstract: An investigation was carried out to evaluate the effect of different application forms and concentrations of melatonin on germination and initial growth of melon plants in several different salinity conditions. We evaluated germination percentage and growth of seedlings and measured total chlorophyll content, relative electrolyte leakage, peroxidase activity, root viability, proline concentration, relative water content, Na + /K + ratio in green parts and K + leakage from roots. Seed germination percentage under salt stress increased with treatments of 10 and 50 µmol·L −1 melatonin. Seed treatment and plant watering with melatonin at 50 µmol·L −1 improved growth parameters and plants showed higher chlorophyll content as well as better biochemical parameters than non-treated plants. Results suggest that melatonin can alleviate the effect of salt stress during seed germination and first stages of plant development.

Source: Horticultural Plant Journal

DOI: 10.1016/j.hpj.2019.01.002

Authors: José Luis Castañares, Carlos Alberto Bouzo

Institutions: National University of Luján, Universidad Nacional del Litoral

Language: English

Topic: Plant Stress Responses and Tolerance

Subfield: Plant Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Zero hunger

Open Access status: gold

Estimated APC paid: $2,000