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苹果矮化密植是当前栽培总的趋势,利用矮化砧木是苹果矮化密植的主要途径之一。由于渤海湾地区气温较低,从国外引入的 M、MM 系等矮化砧木,均不同程度的存在着一些缺点,如抗寒力弱、出苗率低和传递病毒等,因而限制了它的发展。我国果树砧木资源丰富,为探索出实生矮化砧以代替目前广泛应用的 M、MM 系砧木,我们于1974年应用河南海棠实生苗作砧木(别名武乡海棠)嫁接新红星进行试验,现将其初步结果归纳如下:
The dwarfing and close planting of apple is the current general trend of cultivation. Using dwarfing rootstocks is one of the main ways of apple dwarfing and close planting. Due to the low temperature in the Bohai Bay region, dwarfing rootstocks imported from abroad such as M, MM lines have some shortcomings in varying degrees, such as weak cold resistance, low germination rate and transmission of virus, thus limiting its development . Our fruit tree rootstocks are rich in resources. In order to explore the emergence of dwarfing rootstocks instead of the currently widely used M, MM rootstocks, we tested the new red stargrass (also known as Wuxiang Begonia) The preliminary results are summarized as follows: