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一、繁殖果树苗木为什么要用嫁接的方法:1.保持品种的优良性状。一般果树虽能用种子繁殖,但长出来的果树往往变种,退化,果实品质差,失去原品种特性。这是由于遗传基因是个非常复杂的过程,所以栽培品种只能用营养繁殖(嫁接繁殖),不能用有性繁殖(种子繁殖)这是遗传规律所决定的。而采用嫁接的果树,是用老品种树上的枝、
First, the propagation of fruit trees and seedlings Why use grafting methods: 1. To maintain good varieties of traits. Although the general fruit trees can be used for seed multiplication, but the fruit trees grow out often change, degradation, poor fruit quality, loss of the original variety characteristics. This is because the genetic gene is a very complicated process. Therefore, cultivars can only be used for vegetative propagation (grafting) and can not be determined by the laws of inheritance (sexual reproduction) (seed multiplication). The use of grafted fruit trees, trees are old varieties of branches,