Germinação de sementes de moringa influenciada por diferentes tipos de água.

Abstract

Moringa oleifera Lam. is the only genus of the Moringacea family, known as white acacia, horseradish tree, cedar, moringueiro and okra, is native to North India with excellent qualities for human and animal food. The objective of the research was to evaluate the overcoming of dormancy of M. oleifera in different types of water and, specifically, to investigate which type of water provides a better growth of the species' phytomass, in addition to diagnosing the occurrence of microorganisms in the physiological process. The research was carried out at UFCG, Center for Education and Health, campus of Cuité-PB, at the Laboratory of Zoology of Chords. The experimental period was from October 18 to November 10, 2022. The variables investigated were germination percentage, number of leaves, radicle, stem and fresh and dry phytomass. The treatments used were named Treatment 1 - Commercial mineral water, Treatment 2 - Water from Horto Florestal Olho D'água da Bica, Treatment 3 - Mixed water (50% mineral water and 50% water from the source of Olho D'água da Bica Spout) and Treatment 4 - Rainwater. The percentage of germination that occurred with better ease was in Treatment 3, where possibly the mixture of two types of water provided a better physiological process in the seed of the studied species. Overcoming dormancy of Moringa oleifera in Treatment 1 with commercial mineral water and Treatment 3 containing mixed water with 50% mineral water and spring water rich in salts were the ones that best promoted the germination and emergence of the species. The type of water that best produced fresh and dry total phytomass was Treatment 3, which contained 50% sodium-rich water and 50% commercial mineral water. There was occurrence of microorganisms, but without a precise diagnosis of these, however without significantly reaching the seeds of the species.