QUALIDADE DE Lactuca sativa L. SOB INTENSIDADES DE LED SUBMETIDA AO ESTRESSE HÍDRICO E ATIVIDADE MICORRÍZICA

Abstract

Lettuce (Lactuca sativa L.) is one of the most widely grown vegetables in greenhouses around the world, due to its rich nutritional content and its importance in the human diet. Rich in proteins, vitamins (such as A, C and K) and fiber (cellulose), lettuce plays a crucial role in nutrition, which has attracted the interest of many researchers in recent years. Therefore, the objective was to study the physiological quality of lettuce plants, exploring the relationship between different light intensities, irrigation depths and mycorrhizal activity. Thus, two experiments were carried out using lettuce plants. The first experiment evaluated lettuce plants subjected to different light intensities and irrigation depths, for biometric, physiological and biochemical parameters. The second experiment was carried out with the same lettuce plants but with the objective of analyzing mycorrhizal activity in the soil in where they were grown. The results obtained indicated differences in the culture quality both in relation to the light intensities and the irrigation levels to which they were subjected, each one for the analysis carried out. Therefore, it is concluded that the study about LED lighting in lettuce plants, whether for joint irrigation or mycorrhizal activity, is valid and has promising results.