Abstract: ‘Xikang 4’is a new mid-early maturing watermelon F1 hybrid cultivar with superior quality，high yield，anti-cracking. The fruit is spherical in shape and the skin is emerald green with greenish black stripes on the surface which was covered with wax powder. The pericarp thickness is about 1.2 cm，and it is good toughness. So，the fruit is adapted for storage and long distance transportation. The flesh is red and fine sandy，juicy but less fiber，and the center sugar content is about 12% with little differentiation from the edge. The average weight of single fruit is about 6.5 kg and the yield is about 48.743 t ? hm-2. The whole growth period is about 96 days and the fruit development period is around 30 days. It is suitable for the early spring protected cultivation in Guanzhong area of Shaanxi Province.

Key words: watermelon, mid-early maturing, anti-cracking, cultivar