不同品种美国山核桃芽苗砧嫁接成活率及生长过程分析  

The survival rate and growth of pecan hypocotyl grafted seedlings

作　　者：李小飞[1] 彭方仁[1] 梁有旺[1] 张瑞[1] 李永荣 

机构地区：[1]南京林业大学林学院,南京210037 [2]南京绿宙薄壳山核桃科技有限公司

出　　处：《林业科技开发》2015年第6期59-62,共4页China Forestry Science and Technology

基　　金：国家林业公益性行业科研专项(201304711);江苏省林业三新工程项目[Lysx2014(047)];江苏高校优势学科建设工程资助项目(PAPD)

摘　　要：以‘斯图尔特’、‘卡多’、‘契科特’和‘德西拉布’4个美国山核桃品种休眠枝为接穗,进行芽苗砧嫁接试验,比较不同品种美国山核桃芽砧嫁接苗接芽萌发动态、成活率及新梢生长量的差异。结果表明:嫁接后第15,20,25天,各品种接穗芽砧嫁接苗萌发生长差异显著;嫁接时间、接穗品种对美国山核桃芽苗砧接成活率存在显著影响;不同品种美国山核桃芽苗砧接嫁接苗新梢生长差异显著。Dormant scions of ＇ Stuart＇ , ＇ Caddo＇ , ＇ Choctaw＇ and ＇ Desirable＇ pecan were collected and then grafted onto pecan hypocotyls. The germination dynamic, survival rate and shoot growth of grafted seedlings was investigated. The results showed that the bud break of seedlings grafted with different scions varied after grafting. Also, grafting date and scions affected the survival rate. There were significant differences in shoot growth of pecan seedlings grafted with different scions.

关 键 词：美国山核桃 芽苗砧接 嫁接成活率 生长特性 

分 类 号：S723.2[农业科学—林木遗传育种]