以18个西瓜品种间杂种及其21个亲本为试材,进行了亲子相关、表型相关与通径分析。结果表明,单株产量、果株结果数、单果重、可溶性固形物含量及抗性 F_1值与亲中值呈显著正相关。单果重与单株产量、茎粗与单果重、抗性与单果重、抗性与可溶性固形物含量之间呈极显著正相关。在所分析的性状中,单果重对单株产量的直接影响最大,茎粗对单株产量的影响除本身作用外,主要是通过单果重间接地起作用。 A total of 18 watermelon cultivars and their 21 parents were used as parents and their parents were related to their phenotypes and pathways. The results showed that there was a significant positive correlation between yield per plant, fruit number per plant, fruit weight, soluble solids content and F 1 value. There was a significant positive correlation between single fruit weight and plant yield, stem diameter and fruit weight, resistance and fruit weight, and resistance and soluble solids content. Among the traits analyzed, the single fruit weight had the most direct impact on the yield per plant, and the effect of stem diameter on the yield per plant was mainly indirectly through the fruit weight in addition to its own role.