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In this investigation three inbred lines which were desired from Balady squash population by selection and their 6 F1 hybrids including reciprocal were used as genetic materials. The inbred lines and their F1 hybrids included reciprocal hybrids were evaluated for some economic traits; vegetative growth, flowering and earliness as days to first female flower anthesis, fruit, as well as yield and its component traits in field trial during 2014 summer season. The result of mean values showed that no parental line was superior for all studied traits. Meanwhile, the parent P3 exhibited the best values for most studied traits. As well as, the obtained results showed that the highest values recorded in the F1 hybrids compare with their parents (inbred lines) were; i.e., P3xP2 for earliness and sex ratio, P3xP2 for fruit number per plant, P1xP3 for total yield per plant. As well as, P1xP2 for total soluble solid and dry weight of fruits, P2xP3 and P3xP1 for ascorbic acid content. These crosses could be used as commercial cultivars which may compete with imported hybrids. Moreover, their parents (stable inbred lines) which exhibited best combinations for previous traits could be used in breeding program according to their objectives.

EVALUATION OF NEW INBRED LINES AND THEIR HYBRIDS IN BALADY SQUASH VARIETY (Cucurbita pepo L.)