不同处理措施对滇杨根萌苗形成与生长的影响  

Effects of Different Treatments on Rootling Establishment and Growth of Populus yunnanensis

作　　者：刘东玉[1] 周安佩[1] 纵丹[1] 赵雁鸣[1] 赵月明[1] 何承忠[1,2] 

机构地区：[1]西南林业大学西南山地森林资源保育与利用省部共建教育部重点实验室,云南昆明650224 [2]西南林业大学西南地区生物多样性保育国家林业局重点实验室,云南昆明650224

出　　处：《西南林业大学学报（自然科学）》2014年第1期31-35,39,共6页Journal of Southwest Forestry University：Natural Sciences

基　　金：国家林业公益性行业专项基金项目(201104076)资助;云南省中青年学术与技术带头人后备人才培养基金项目(2012HB021)资助

摘　　要：为建立高效稳定的滇杨返幼复壮根萌苗培育技术体系,以滇杨根段为材料,研究种根长度、切口涂封方式和埋根方式对根萌苗形成及其生长的影响。结果表明:种根长度对根萌苗数量和种根生根数量影响极显著,根萌苗数量和种根生根数量随种根长度的增加而增加,苗高和苗粗随种根长度的增加而降低;切口涂封方式对苗高和苗粗生长有极显著影响,以两端均不涂封的效果最佳;埋根方式对根萌苗数量、种根生根数量、苗高和苗粗的影响均不显著,但斜埋对根萌苗数量、苗高和苗粗的作用效果略优于平埋。The effects of root cutting length, incision sealing methods, and transplant methods on the rootling establishment and growth of Populus yunrtartensis were studied for setting up an efficient and stable rejuvenation technique system for rootling cultivation by taking root segments as propagation materials. The resuhs showed that the root cutting length significantly affected the number of root suckers and the number of adventitious roots, the root suckers and adventitious roots were increased along with the increment of the length of root cuttings, whereas the height and basal diameter of the rootlings were decreased with the length increment of the root cuttings. The incision sealing methods also had sealing signifi on the either end of the cuttings cant effect on the height, basal diameter and the growth of root suckers, no resulted in the best effect. There were no significant effects of the transplant methods on the numbers of rootlings, the adventitious roots, the height and basal diameter of the rootlings, but the effect of oblique burying of the root cuttings was slightly better than that of the horizontal burying on the number of rootlings, the height and basal diameter of the rootlings.

关 键 词：滇杨 无性繁殖 根插 返幼复壮 

分 类 号：S723.1[农业科学—林木遗传育种]