Germinação de sementes de Moringa oleifera Lam. sob diferentes concentrações de cloreto de potássio

Abstract

This study investigates the impact of salt stress on the germination and initial growth of Moringa oleifera LAM., a plant recognized for its nutritional and medicinal properties. The introduction contextualizes the importance of Moringa oleifera and highlights the relevance of studying the effects of saline stress in agricultural environments affected by soil salinization. The experiment evaluated the response of seedlings subjected to saline stress, comparing seeds presoaked in water for 24 hours with those not soaked. Carried out under controlled laboratory conditions, the experiment lasted 15 days, with seeds subjected to different saline solution treatments with Kcl. The concentrations used were Kcl 0.04 M, Kcl 0.08 M and Kcl 0.12 M. The variables analyzed included germination percentage, germination speed index, hypocotyl and main root length. The results indicated that saline stress negatively impacts germination and growth, with a significant reduction in treatments with higher saline concentrations. This study reinforces the importance of understanding the resistance mechanisms of Moringa oleifera to saline stress for the development of sustainable agricultural practices in areas affected by salinity. Contributes to scientific knowledge about plant tolerance to adverse conditions, guiding future research to improve crop resilience in saline environments.