有这样一种有趣的现象:有人在市上买到一只硕大的水蜜桃,味鲜而美,品质极优。他企图保存它的优良品质,就把这一粒种子加以繁殖。然而结果却相反,他所得到的已不是原来的水蜜桃,而很可能是一株品质低劣的山毛桃。这是什么原因促使它这样剧烈的变化,而得不到我们想象中的结果呢?首先,须了解长这果实的桃树是怎样的一株桃树。据一般情况,这株桃树可能是由嫁接而繁殖起来 There is such an interesting phenomenon: some people in the market to buy a huge peach, delicious and beautiful, excellent quality. He attempted to preserve its fine quality, and the seed was multiplied. However, on the contrary, the result is that what he has obtained is not the original peach, but probably a poor quality peach. What is the reason for this to cause such a drastic change that we can not get the result we imagined? First, we must understand what a peach tree grows. According to the general situation, this peach tree may be reproduced by grafting