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嫁接是无性繁殖的一种方法。嫁接繁殖除可以保持花木原有的优良特性、提高苗木适应能力、提早开花结果外,还使衰老的花木转弱为强,重新复壮。因此,它已广泛应用于果树花木生产。但是,在繁殖中,往往成活率不高,分析其原因有以下几个方面。一、愈伤组织的作用愈伤组织的形成是嫁接成活的先决条件。嫁接时,砧木和接穗的削面,在创伤激素的作用下,伤口附近主要是形成层薄壁细胞旺盛分裂,各自分化出愈伤组织。发育的愈伤组织相互结合,填补空隙,以后愈伤
Grafting is a method of asexual reproduction. In addition to grafting and grafting can maintain the original fine features of flowers and trees to improve seedling adaptability, early flowering results, but also to weaken the aging flowers as strong, re-rejuvenation. Therefore, it has been widely used in fruit trees and flowers production. However, in breeding, the survival rate is often not high, the analysis of the reasons for the following aspects. First, the role of callus The formation of callus is a prerequisite for grafting survival. Grafting, rootstock and scion of the face, in the role of traumatic hormones, the wound is mainly the formation of parenchyma cells strong divisions, each differentiated callus. The development of calluses combined with each other to fill the gap, later callus