油桐扦插及其不定根形成的解剖观察  

Anatomical Observation on Cutting Propagation and Adventitious Root Formation of Vernicia fordii

作　　者：蓝金宣[1] 梁文汇[1] 黄晓露[1] 杨卓颖 李宝财[1] 马锦林[1] Lan Jinxuan;Liang Wenhui;Huang Xiaolu;Yang Zhuoying;Li Baocai;Ma Jinlin(Guangxi Zhuang Autonomous Region Forestry Research Institute/Guangxi Key Laboratory of Characteristic Non-wood Forest Cultivation&Utilization,Nanning 530002)

机构地区：[1]广西壮族自治区林业科学研究院/广西特色经济林培育与利用重点实验室,南宁530002

出　　处：《中国农学通报》2021年第19期42-46,共5页Chinese Agricultural Science Bulletin

基　　金：“十三五”国家重点研发计划子课题“油桐无性繁育关键技术研究”(2017YFD0600703-4)。

摘　　要：为研究油桐扦插生根问题,以13年生油桐母树穗条为试验材料,研究不同外源激素浓度、留叶方式及母树年龄对油桐插穗生根的影响,并从解剖学角度揭示其插穗的生根机理。结果表明,采集1年生母树穗条,留半叶,经1.5 g/L IBA处理2 h,生根效果最优,达56.67%;其生根形式为单一皮部生根;根原始体属于诱导原始体,由皮层的薄壁组织细胞分化而来。The paper aims to solve the problem of cutting rooting of Vernicia fordii. The effects of different concentrations of exogenous hormones, pattern of left leaves and age of maternal plant on the rooting of cuttings of V. fordii were studied by taking the 1 to 3-year-old maternal plant as the experimental material, and the rooting mechanism was explored by anatomical observation. The results showed that the best rooting effect was taking the 1-year-old maternal plant as the experimental material, leaving half leaf and 2 h of 1.5 g/L IBA treatment, under which the rooting rate could reach 56.67%. The rooting method of V. fordii was single skin root. The adventitious root primordium of V. fordii belonged to the inducible primordium, which was derived from the parenchyma cells of the cortex.

关 键 词：油桐 扦插育苗 不定根 解剖结构 生根率 

分 类 号：S723.1[农业科学—林木遗传育种]