无子西瓜甜汁多,食用方便,很受群众欢迎。无子西瓜也叫做三倍体西瓜。这种西瓜,需要经过三个培育阶段。第一年,要选择优良的普通有子西瓜品种(普通西瓜为二倍体),在幼苗期用秋水仙碱溶液处理生长点,使它的染色体加倍,获得四倍体西瓜。这时一个西瓜种子一般只有50多粒,因此又叫少子西瓜;第 No child watermelon sweet juicy, easy to eat, very popular with the masses. Seedless watermelon is also called triploid watermelon. This watermelon, need to go through three stages of cultivation. The first year, we must choose the fine ordinary watermelon varieties (common watermelon diploid), colchicine solution in seedling growth points, so that its chromosomes to obtain tetraploid watermelon. At this time a watermelon seed generally only more than 50 tablets, so also called a child of watermelon;