发展山楂,首先是山楂苗嫁接的培育,但在这方面问题较多,嫁接苗成活率仅达30%左右,影响山楂大面积发展。我们在栽培实践中体会到,影响山楂苗嫁接成活率的主要原因是: 1.利用野生山里红做砧木,去挖掘砧木时保留的根系不完整,侧根少,日晒时间长,失水多,嫁接时砧木不离皮等,都影响嫁接成活率。2.购买的接穗保管不当,接穗的后叶片不能及时摘掉,托叶摘得不干净,叶柄保 The development of hawthorn, the first is the cultivation of hawthorn seedlings grafted, but more problems in this regard, the survival rate of grafted seedlings only up to 30%, affecting the hawthorn large-area development. We experience in cultivation practice, the main reason affecting the survival rate of the hawthorn seedling grafting is: 1. The use of wild mountain red as rootstocks, to rootstocks excavation to keep the root system is incomplete, less lateral roots, sun a long time, dehydration, grafting When the rootstock is not from the skin, etc., all affect the graft survival rate. 2. purchase of improper storage of scion, scion after the leaves can not be removed in time, care leaves pick not clean, Petiole Paul