【摘要】 连续3 a对影响山核桃嫁接成活不同因素的试验表明,不同嫁接方法,其成活率影响极为显著,以挖骨接最好,达83％,贴腹接其次,为79％,切接和劈接最差,只有65％和42％;接穗类型不同,嫁接成活率也不同,其中生长枝成活率最高,达65．2％,其次是徒长枝,为45．2％,最差为结果枝,成活率只有12．1％;砧木不同,其成活率表现也不同,以本砧、化香为好,成活率分别是77％和79％;以4月上旬至5月中旬茎干基部生长活跃,树皮极易剥开且嫩叶有0．8-1．2 cm长时留床或提早移植嫁接为好。生长枝与结果枝嫁接苗造林能使树体矮化,但以生长枝嫁接苗造林成活率和保存率较高。更多还原

【Abstract】 Continuous three years experiment on various effects on survival rate of Carya cathayensis seedlings showed that there were many factors, especially the grafting methods. Among them, rind grafting had the best survival rate of 83%, then the cutting side-grafting of 79%, and cut grafting and cleft grafting had only 65% and 42%. The scion types had evident effect on the seedlings survival rate, with growing branch of 65.2%, with water sprout of 45.2% and bearing branch with only 12.1%. Different rootstocks also had influence with 77% and 79% survival rate for C. cathayensis and Platycarya strobilacea respectively. Remaining in seed-plot or grafting undertook during the first ten days of April to the middle ten days of May when basal stem grew actively, cortex was easy to be peeled and tender leaf was 0.8 - 1.2cm. Grafted seedlings from growing and bearing branch could lower the tree, and that from growing branch had higher planting survival rate.更多还原