杂交西瓜亲本选择对防止退化的效应

Effect of Parent Selection of Hybrid Watermelon Breeding on the Control of Combination Degeneration

对杂交一代西瓜亲本进行严格的选择，不仅能够延缓自交亲本的衰退，改善或提高其生长势、座果性、抗病性和产量等性状，而且可以防止杂交一代的退化。

The strick parent selection of hybrid watermelon breeding not only delayed the depression of self bred parent,improved or strengthened the ability of its growth,fruit setting and resistance,but also controlled the degeneration of hybrid watermelon combination.