论文部分内容阅读
西瓜是异花授粉作物 ,在自然条件下容易引起生物学混杂、自然变异和机械混杂 ,从而使西瓜品种种性退化 ,产量、品质和抗性等重要经济性状变劣 ,因此必须重视良种繁育技术。西瓜杂交制种技术的关键就是保证种子纯度、提高种子产量。1 提高制种纯度的措施1 .1 提高亲本自交系的
Watermelon is cross-pollination crops, under natural conditions easily lead to biological hybrids, natural variation and mechanical mixing, so that watermelon varieties degenerate, yield, quality and resistance and other important economic traits worse, we must attach importance to breeding technology . Watermelon hybrid seed production technology is the key to ensure the purity of seeds and improve seed yield. 1 measures to improve the purity of seed 1.1 increase the parental inbred lines