Avaliação do índice de sobrevivência do melão rendilhado enxertado em diferentes genótipos de cucurbitaceae

Abstract

The melon crop (Cucumis melo L.) belongs to the Cucurbitaceae family, being considered a tropical fruit of high commercial value, appreciated for its peculiar characteristics and great popularity in the world; currently, is one of the freshest fruits most exported by Brazil. Due to new large areas cultivated with melon, often without adequate technical guidance, the occurrence of problems in cultivation has increased, causing major problems for the crop, as diseases, nematodes and soil salinization, sometimes limiting cultivation. These problems generated the need to search for alternatives to melon cultivation. One of the alternatives found was the use of grafting, by the use of tolerant or pathogen resistant rootstocks and adverse environmental conditions. Studies on the behavior, compatibility, productivity, resistance and / or tolerance of rootstocks and grafts, as well as evaluations of rootstock species under different environmental conditions are fundamental for the choice of suitable rootstock, combining resistance and productivity. Therefore, the objective of this work is to evaluate four genotypes of Cucurbitaceae family (Aodai, Verde Comprido, Xingó Jacarezinho and Maranhão) that can be used as grafted rootstocks. The experiment was conducted in the city of Recife / PE, from September to October 2018, using a completely randomized design. The genotype that provided the higher survival rate was the Aodai cucumber, which presented about 85% of survival. The genotype Verde Comprido cucumber presented 72% of glue. The pumpkin genotypes Xingó Jacarezinho and Maranhão presented values of 60% and 53%, respectively, with the Maranhão genotype presenting the lowest percentage survival value.