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

作     者：José Luis Casta?ares Carlos Alberto Bouzo José Luis Casta?ares;Carlos Alberto Bouzo

作者机构：Plant Physiology Laboratory Department of Basic Sciences Universidad Nacional de Luján Laboratory of Research in Physiology and Plant Molecular Biology Facultad de Ciencias Agrarias Universidad Nacional del Litoral 

出 版 物：《Horticultural Plant Journal》 (园艺学报（英文版）)

年 卷 期：2019年第5卷第2期

页      面：79-87页

核心收录：

学科分类：09[农学] 0902[农学-园艺学] 090201[农学-果树学] 

主　　题：melon melatonin salt stress germination antioxidation 

摘      要：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 and50 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.