红锥与白锥种间嫁接育苗试验  

Preliminary Study on Interspecific Grafting and Raising between Castanopsis hystrix and C.carlesii at Different Periods

作　　者：钟瑜[1] 张振谋[2] 谭英彬 梁国校[1] 

机构地区：[1]广西林业科学研究院,广西优良用材林资源培育重点实验室,广西南宁530002 [2]广西九万山国家级自然保护区管理局环江分局,广西环江547100 [3]广西环江毛南族自治县林业局,广西环江547100

出　　处：《福建林业科技》2012年第4期86-88,108,共4页Journal of Fujian Forestry Science and Technology

基　　金：广西林业科学研究院基本科研业务费项目"两个刺栲属树种杂交授粉控制技术研究"(林科201115号);广西科学研究与技术开发计划项目"红锥良种选育与丰产栽培模式研究"(桂科攻10100012-3);"十一五"广西林业科技项目"广西主要优良珍贵乡土树种-红锥良种选育与示范"(桂林科字[2009]2-1号)

摘　　要：采用髓心形成层贴接法,对栲属2个种,即红锥(Castanopsis hystrix)与白锥(C.carlesii Hayata)种间进行不同时期嫁接育苗试验。结果表明:采用髓心形成层贴接法,适合栲属种间嫁接,没有发现嫁接不亲和的现象;不同时期嫁接均有较高的成活率。综合比较成活率、保存率、接穗芽长等指标,表明嫁接效果最好的是3月,成活率达79%,接穗芽长11 cm;其次是11月、2月、10月、1月。说明春秋2季均适合栲属种间嫁接。气温对异砧嫁接成活率有直接影响,在低温时栲属种间嫁接愈伤组织生长比种内嫁接需要更长的时间,因此解绑时间可延长至100 d后。By adopting pith-cambium grafting method,grafting experiment with two Castanopsis genera namely Castanopsis hystrix and C.carlesii Hayata were carried out at different periods.The experiment showed that the pith…cambium grafting method was suitable for Castanopsis genera and no incompatibility was found.Comprehensively taking survival rate,conservation rate and scion growth to compare,March was the best grafting time with a survival rate of 79% and scion growth length of 11cm,followed by November,February,October and January,indicating that spring and autumn were suitable for grafting.Temperature directly impacted survival rate of grafting.While in low temperature,callus growth of interspecific grafting needed longer time than that of homoplastic grating.The optimist time for unbinding buds was 100 days after grafting.

关 键 词：栲属 种间嫁接 成活率 生长量 

分 类 号：S792.17[农业科学—林木遗传育种]