我国果树的发展方向我国果树的发展方向。首先在开展资源调查的基础上，有针对性地开展抗性育种、引种、杂交育种和选种，以达到果树优质高产和矮化无毒的目标。其次要将生物遗传工程技术应用到果树品种的改良上。三要提高种质资源的保存水平，开设国家种质资源圃。四要以... Development direction of fruit trees in China Development of fruit trees in China. First of all, on the basis of carrying out the resource investigation, targeted breeding, introduction, crossbreeding and seed selection should be carried out so as to achieve the goal of high quality and high yield of fruit trees and dwarfing and nontoxicity. Second, bio-genetic engineering technology should be applied to the improvement of fruit varieties. Third, we must raise the conservation level of germplasm resources and set up a national germplasm resource garden. Four to ...