种报春苣苔属植物叶插繁殖技术研究-广东农业科学.PDF

广东农业科学 2013 年第 6 期 43 4 种报春苣苔属植物叶插繁殖技术研究 艾春晓 罗 乐 张启翔 程堂仁 潘会堂 蕴红 颖楠 北京林业大学园林学院袁 北京 100083 冤 要 以河池报春苣苔 Primulina hochiensis冤尧线叶报春苣苔 P. linearifolia冤尧永福报春苣苔 P. yungfuensis冤尧尖萼报春苣苔 P. punge ntisepala冤为研究对象袁采用多因素完全随机区组试验设计袁探讨 3 种扦插方式和 3 种扦插基质对 4 种报春苣苔属植物扦 插生根的影响遥 结果表明袁4 种报春苣苔属植物在珍珠岩:草炭=1颐1 V/V 冤基质中的扦插效果最好袁形成的子株数最多 19.67~ 29.67冤袁不定根发生时间最短 28.33~41 d冤袁不定芽发生时间最快 63.67~79.67 d冤曰河池报春苣苔以全叶插方式繁殖效果最好袁线叶 报春苣苔尧永福报春苣苔尧尖萼报春苣苔以半叶插方式繁殖效果最好遥 关键词 报春苣苔属曰 叶插曰 生根曰 基质配比 中图分类号 S615 文献标识码 A 文章编号 1004-874X 2013 冤06-0043-04 Leaf cutting propagation of four Primulina species A I Chun-xiao, LUO Le, ZHANG Qi-x iang, CHENG Tang-ren, PA N Hui-tang, WANG Y un-hong, WANG Y ing-nan (Landscape A rchitecture Sc hool, Beij ing Forestry Univ ersity, Beij ing 100083, China) Abstract: To provide technical guidance for commercial production, the best leaf cutting propagation of four Primulina species (Primulina hoc hiensis, P. linearifolia, P. yungfuens is and P. pungentisepala) were investigated with a multi-factor randomized block design including three cutting modes and three substrate ratios. The results showed that the optimum medium ratio was perlite:peat =1:1 (V/V) with maximum seedlings (19.67~29.67) and quick development of adventitious roots (28.33~41 d) and adventitious buds (63.67~79.67 d). Entire leaf cutting was more suitable for P. hochie ns is, and half leaf cutting was more suitable for P. linearifolia,