Identification of Agronomic Traits and Yield Potentials of Different Large-fruited Watermelon Varieties in Gravel-mulched Fields
In order to enhance the vitality of gravel-mulched watermelon industry,large-fruit watermelon varieties with development potential under gravel-mulched field planting conditions were selected in this study.8 large-fruited watermelon varieties were selected to comprehensively compare the agronomy characters under the sand field planting mode from the perspectives of growth potential,disease resistance,fruit characters and yields.The results showed that the main vine length and internode length of the tested variety 1912 were relatively higher,the vine diameter was the thickest,the disease resistance was the best with the lowest the incidence of fusarium wilt,downy mildew,powdery mildew and anthracnose,and the comprehensive performance was ideal.The fruit transverse diameter of this variety was the largest,which was 245.80 mm.The fruit longitudinal diameter was relatively higher which was 333.90 mm.The sugar content of fruit center and edge of 1912 was the highest,which was 12.80%and 9.60%,respectively.The single fruit weight of 1912 was the highest,reaching 9.04 kg which was 0.53 kg higher than that of the control variety Jinchenghongjinwu.Commodity rate of 1912 was 91.33%.The yield and commodity melonyield of 1 912 were the highest,which were 31 391.20 kg/ha and 28 669.58 kg/ha,respectively,which were 6.24%and 5.47%higher than the control variety Jinchenghongjinwu.Based on the comprehensive performance of the various traits,1912 had outstanding advantages and was suitable for further promotion in the sand field planting mode.