This study was performed in North Sinai at Rafah and Arish locations during
winter 1998 and 1999 seasons. Where the EC of irrigation water were 640 and 2944
ppm. For the two locations respectively. Six hybrids from melon (Cucumis melo var
cantaloupensis c.v), Galia, Rafigal, Regal, Ideal, Primal and vicar F1 hybrid were
sowing under Two locations. Seeds were sown directly in sandy soil under low tunnel
conditions during 0 ecember in Two locations 0 f both seasons. The results showed
that, the high saline irrigation water in Arish location reduced fresh plant weight, length
of plant, early and total fruit weight and size of fruits and increased in fruit quality, i.e.
firmness and total soluble solids (TSS) and earliness in appearance of female flowers
compared to low saline irrigation water in Rafah location. On the other hand, no effect
of high saline irrigation water on number of branch and fruits per plant. The behaviour
of various hybrids, the results showed, Ideal, Rafigal and Regal hybrids were
significantly higher than, G alia, Primal a nd Vicar hybrids for fruit quality, vegetative
growth and early and total fruit weight. Conceming, the behaviour of various hybrids
under two locations (level salinity), the results showed, some hybrids as Ideal, Regal
and Rafigal were more tolerance of salinity, where fore, no significant differences
between two locations (level salinity) for all characters under study, while, Galia,
Primal and Vicar hybrids were more susceptible of salinity, which gave significant
differences in most characters between Two locations (level salinity) . Generally,
Ideal, Regal and Rafigal hybrids were more goodness for planting in the regions,
which irrigated with saline water than 0 ther hybrids, addition to more good ness of
fruits due to high firmness and TSS in high level salinity.