Production and quality of melon hybrid Mandacaru irrigated with different levels of salinity

Abstract

Among the problems faced by the melon crop in the state of Rio Grande do Norte, northeastern Brazil, the effect of water and soil salinity is considered one of the key factors to limit fruit production and quality. The aim of this work was to study the effects of using irrigation waters with different salinity levels on yield and quality of fruits of the yellow melon hybrid Mandacaru. A randomized complete block design was used with five treatments (irrigation water salt concentrations: 0.54, 1.48, 2.02, 3.03, 3.9 dS m-1) and four replications. The effects of these concentrations were evaluated through, number of marketable fruits per plant, marketable and total fruit yield, average marketable fruit mass, soluble solids content and pulp firmness. Increment in water salinity level negatively influenced crop yield. The 3.9 dS m-1 salinity level caused yield losses of 20.31%, due to the reduction of fruit number per plant. The highest soluble solid content and the highest pulp firmness values were estimated to occur at salinity levels 2.09 and 3.5 dS m-1, respectively.

Effect of Saline Irrigation Water on Growth and Productivity of Five New Melon Lines

“…These results agreed with those found by Medeiros et al (2011) who stated that, regarding number of fruits/plant at salinity values of 0.54 dS m -1 , he was found that the increasing of water salinity for the number of fruits, decreasing from 1.59 to 1.29 fruits from the lowest to the highest salinity, A similar action was showed for the total marketable fruit productivity in response to the salinity of the irrigation water. A linear decrease was observed, of 20.31% and 21.97% for total yield, respectively, in the level 3.9 dS m -1 in relation to 0.54 dS m -1 .…”

Effect of Saline Concentrations in Melon under Different Substrates in Hydroponic System

“…These results evidenced the possibility of the use of saline soil, of saline water in irrigation and use in hydroponic solutions, being necessary to develop cultivars that present a greater tolerance to the salinity, to further explore these resources through this culture, which naturally exhibits moderate tolerance to salinity, having sufficient variability to be exploited by breeding programs [9,21,22].…”