Abstract
The increasing tendency of production and export of melon in the State of Rio Grande do Norte, Brazil, where there are aquiffers with different qualities of irrigation water, there is necessity to evaluate the productivity of melon plant in relation to the salinity of these waters. With this objective two experiments were carried out: in the first one, the effect of water salinity was tested (0,8 and 3,02 dS m-1) in two cultivares of melon (Orange Flesh and Goldex) and in the experimente II, the cultivar Goldex was used to evaluate production in relation to two water qualities (0,52 and 2,41 dS m-1) and five K2O doses (168; 210; 252; 294 and 336 kg ha-1). The analyzed variables were marketable and total fruit yield, number of marketable and total fruits, marketable and total mean weights. In general, the cultivar Orange Flesh showed more tolerant to salinity than Goldex, and there was no significant effect of increase of the potassium dose, however in relation to the Experiment I the productivity of cultivar Goldex was higher.
Key word:
Cucumis melo L.; irrigation; potassium fertilizer
Thumbnail
