摘要
以成年芳樟Cinnamomum camphora var.linaloolifera当年生半木质化枝条为试验材料,修剪成一叶一芽茎段进行扦插,研究吲哚丁酸(IBA)、扦插基质和扦插时间对芳樟茎段扦插生根的影响。结果表明,采用成年芳樟一叶一芽茎段进行扦插,诱导生根快,生根率较高;IBA对芳樟茎段扦插生根具有显著促进作用,扦插后35 d时出现不定根,以3000 mg·L-1 IBA处理芳樟茎段扦插生根效果最好,其生根率达67.67%;扦插基质对芳樟茎段扦插生根及扦插苗生长具有显著影响,红壤土+草木灰=3∶1是芳樟茎段扦插生根适宜基质,扦插苗在该基质上生长最好;扦插时间对芳樟茎段扦插生根具有显著影响,以5月扦插生根效果最好,其生根率为63.33%,显著高于8月和9月扦插,以9月扦插生根效果最差,其生根率仅为32.33%。
Current branches of adult Cinnamomum camphora var.linaloolifera were harvested in May 2018,in Nanchang,Jiangxi province for cuttings with one leaf and one bud.They were treated by different concentration of IBA,in different medium and different cutting time.2 months later,investigations were conducted on rooting and growth of cuttings.The results showed that IBA could evidently improve rooting of cuttings,which had adventitious root 35 days after treatment,and the optimal concentration of IBA was 3000 mg·L-1 with rooting rate of 67.67%.Cutting medium had significant effect on rooting and growth of C.camphora var.linaloolifera cuttings,the experiment demonstrated that red soil+plant ash=3:1 had the highest rooting rate and the best growth of cuttings.Cutting time had the best rooting effect in May;the rooting rate was 63.33%,significantly higher than that in August and September.
作者
肖祖飞
吕雄伟
张北红
李凤
张海燕
金志农
张琴
马一丹
XIAO Zu-fei;LV Xiong-wei;ZHANG Bei-hong;LI Feng;ZHANG Hai-yan;JIN Zhi-nong;ZHANG Qin;MA Yi-dan(Nanchang Institute of Technology,Jiangxi Provincial Engineering Research Center of Breeding and Utilization of Camphor Tree,Nanchang 330099,China;Institute of Biology and Resources,Jiangxi Academy of Science,Nanchang 330096,China)
出处
《浙江林业科技》
2020年第5期28-34,共7页
Journal of Zhejiang Forestry Science and Technology
基金
江西省林业局林业科技创新专项(创新专项﹝2019﹞04号)
江西省科技厅重点研发计划一般项目(20192BBFL60012)
江西省科技厅重点研发计划重点项目(20171ACH80016)
江西省教育厅科技项目(GJJ151114)
国家自然科学基金(31600497)。
关键词
芳樟
茎段
扦插
生根率
Cinnamomum camphora var.linaloolifera
stem
cutting
rooting
