近几年来,果树发展数量很大,生产者最关心的问题是如何使果树提早结果,早期丰产,这不仅是栽培技术的问题,而且有很多植物学原理,下面我想谈几点看法。 1.利用矮化砧木由于矮化砧木根系小,限制了地上部的生长,或因其亲和力较差,使接口运输不畅,或因砧木和地上部分激素平衡失调而引起矮化和早结实。我国对矮化砧木的利 In recent years, the development of fruit trees has been very large. The main concern for producers is how to make fruit trees early and yield early. This is not only a question of cultivation techniques, but also has many principles of botany. Below, I would like to make a few observations. 1. The use of dwarfing rootstock dwarf rootstocks small root system, limiting the growth of the ground, or because of its poor affinity, poor transport interface, or rootstocks and aboveground hormone imbalance caused by dwarfing and early fruiting. Our country dwarf rootstock Lee