以地径3～4cm的实生香榧大苗为砧木、‘细榧’等品种为接穗,研究不同嫁接方法、嫁接时间、接穗类型及是否剪砧、是否采取防晒措施对香榧新梢生长和嫁接成活率的影响.结果表明,采用贴枝接和劈接的嫁接成活率分别为90.58％和76.67％,达到5％显著水平,贴枝接的新梢抽生数、新梢个数、新梢生长量也略高于劈接;2月29日(2012年)至3月22日嫁接,嫁接成活率间没有显著差异,但新梢生长量随嫁接时间推迟而减小;1年生新梢上段和半木质化嫩梢作接穗的成活率均达到85％以上,1年生接穗粗度对嫁接成活率没有明显影响,但接穗越粗,新梢生长量越大,1年生枝条下段和2年生接穗嫁接成活率较低;第1年不剪砧的嫁接成活率高于剪砧,但剪砧新梢生长量大于不剪砧;对嫁接枝用箬叶包扎进行防晒对提高嫁接成活率没有作用.%Experiments were conducted on effect of different grafting method,grafting time,scion type,upper stock removal and shading on new shoot growth and survival rate with Torreya grandis cv.Merrillii seedling of diameter 3-4cm as stock and different varieties as scion.The results showed that veneer-scion grafting and cleft grafting had survival rate of 90.58％ and 76.67％ respectively.Shooting times,new shoot number and growth of graftings by veneer-scion had better effect than that by cleft grafting.Survival rate was not significant among seedlings grafted during February 29 (2012) to March 22,but new shoots reduced with the grafted time.Seedlings had survival rate of 85％ taking top part of 1-year shoot or half lignificated shoot as scion.Thickness of 1-year shoot had no significantly influence to survival rate,but the new shoots growth could be greater.Seedling had lower survival rate with lower part of 1-year shoot and 2-year shoot as scion.Survival rate of seedling was higher without upper stock removal at the current year,but lower new shoot growth.Shading had no effect on survival rate of seedlings.
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