GURGEL, Marcelo Tavares.; GHEYI, Hans Raj.; FERNANDES, Pedro Dantas.; OLIVEIRA, Fábio Henrique Tavares de.
Resumo:
The salinity of the irrigation water is one of the factors which can influence the
absorption of nutrients substantially by the melon plant (Cucumis melo L.). The present work had as
objective to compare the potassium absorption in two cultivars of melon (Goldex and Orange Flesh)
irrigated with low and high salinity (ECw = 0.8 and 3.2 dS m-1 water. The experiment was conducted
at Santa Julia Farm, in the municipal district of Mossoró - RN. The experiment was carried out in 2x2
factorial scheme, arranged in a completely randomized block design with 4 replications. At 24, 31, 38,
45, 52 and 63 days after sowing (DAS) two plants were sampled in experimental plot and were
divided into stem, leaf and fruit. In each part potassium content was determined after drying. The
potassium absorption was influenced positively and negatively, respectively in Orange Flesh and
Goldex when irrigated with saline water (3,02 dS m-1).
