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西瓜杂交种是靠十分纯正的双亲,通过杂交产生的杂交优势增产及提高品质和抗病性的。要发挥杂交种增产的潜力,必须要亲本纯,才能育成杂交率高的真杂种,否则是没有杂交上的伪杂种,即母本是不能够增产的。一、选择杂交种子田首先要考虑隔离条件好,至少要1000米以上的
Watermelon hybrids rely on a very pure parents, cross hybrid advantages arising from increased yield and improve quality and disease resistance. To make full use of the potential of hybrids to increase their production, parents must be pure in order to breed true hybrids with high hybridization rates. Otherwise, there is no false hybrid in hybrids, that is, the female parent can not increase production. First, the choice of hybrid seed fields first consider the isolation conditions are good, at least 1,000 meters or more