西瓜花粉直感效应对其果实的影响

[目的]研究西瓜花粉直感效应对其果实的影响。[方法]以多代自交的小西瓜材料07—10-2—3-3为母本，07—32-2—3-5和07-33．1—2—3为父本，配置杂交种。并测定杂交后30d的西瓜重量、皮厚度、糖度等。[结果]西瓜组合当代F0（07—10-2—3-3×07-32-2-3-5）和F0（07—10-2—3-3×07-33-1-2—3）种子成熟加快，瓜瓤中心含糖量平均比母本提高了2．4和1．7百分点，中心和边缘糖度的差值明显缩小，且瓜肉比母本脆。[结论]该结果证明了西瓜存在花粉直感效应。

Study on Pollen Xenia Effect of Watermelon on Its Fruit

[Objective] The aim was to study xenia effect of watermelon pollen on its fruit. [Method] Taking 07-10-2-3-3 of small watermelon as female parent, 07-32-2-3-5 and 07-33-1-2-3 as male parent, hybrids were prepared, and the weight, skin thickness, sugar degree of watermelon after crossing 30 days were determined. [Result] The seed of watermelon combination of F0 (07-10-2-3-3×07-32-2-3-5) and F0 (07-10-2-3-3×07-33-1-2-3) mature accelerated, and sugar content in the center of watermelon sponge increased 2.4 and 1.7 percentage points than female parent. The difference of sugar content in the center and border was reduced, and watermelon meat was crisper than female parent. [Conclusion] The result proved that watermelon exists in pollen xenia effect.