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以‘绿岭’核桃品种为试材,研究了不同树龄砧木和嫁接时间对核桃高接成活率和新梢生长量的影响,以期提高低劣核桃树高接换优的成活率提供参考。结果表明:4~5年生、6~10年生、11~20年生、>20年生旺长树和>20年生小老树核桃作为砧木的嫁接成活率分别为90.00%、86.42%、79.62%、70.17%和38.60%,4~5年生砧木和6~10年生树龄嫁接的成活率极显著高于其它处理,11~20年生和树龄>20年生的旺长树之间差异不显著,但极显著高于树龄>20年生的小老树;6个不同时间的嫁接成活率分别为47.21%、65.43%、80.62%、85.69%、78.89%、48.01%,4月30日的嫁接成活率显著高于4月26日、5月6日,以上3个时间的嫁接成活率均极显著高于4月20日、4月18日和5月10日,4月20日的嫁接成活率极显著高于4月18日和5月10日;6个不同时间嫁接成活的新梢年平均生长量分别为131.11、141.03、132.73、131.90、87.50cm,各处理之间均无显著差异。
Taking “Luling” walnut variety as test material, the effect of rootstocks and grafting time of different ages on the viability and shoot growth of walnut was studied in order to provide reference for improving the survival rate of inferior walnut tree. The results showed that grafting survival rate of walnut with 4 to 5 years, 6 to 10 years, 11 to 20 years,> 20 years old and> 20 years old walnut as rootstock were 90.00%, 86.42%, 79.62%, 70.17 % And 38.60% respectively. The survival rates of 4 to 5 year-old rootstocks and 6 to 10 year-old trees were significantly higher than those of the other treatments. There was no significant difference between 11 to 20 years old and 20 years old trees The survival rate of grafting at the age of> 20 years was significantly higher than that of the grafts at the age of 20. The survival rates of grafting at 6 different times were 47.21%, 65.43%, 80.62%, 85.69%, 78.89%, 48.01% On the 26th and the 6th of May, the survival rates of grafting in the above 3 times were significantly higher than those on April 20, April 18 and May 10, and the grafting survival rate on April 20 was significantly higher than 4 On the 18th and the 10th of May, respectively. The annual average shoot growth rate of grafted alive shoots at 6 different times was 131.11, 141.03, 132.73, 131.90 and 87.50 cm, respectively. There was no significant difference between the treatments.