Studies on Relative Techniques for“Three High” Production of Seedless Watermelon

The seed production of seedless watermelon was carried out in Northwest part of China.Studies on relative techniques for seed production showed that,the seed amount,germinating rate of seeds,sprouting rate of seeds in field condition varied with combinations and climate condition within a certain range,the weight of single melon was positively related to its seed amount;the seed amount of the melons growing at lst to 3rd female flower knot,was negatively related to its flower locating position from lower to higher part of the plant.Optimum melon number for the seed production was 2.7-3.15?103/hm2.