阔叶箬竹母竹和鞭段育苗效果分析  

Study on the Asexual Propagation Techniques of Indocalamus latifolius

作　　者：范伟青 石兴华 黄明文 蓝本宽 毕雅莹 潘军 曾剑 钟子龙 FAN Wei-qing;SHI Xing-hua;HUANG Ming-wen;LAN Ben-kuan;BI Ya-ying;PAN Jun;ZENG Jian;ZHONG Zi-long(Suichang County Ecological Forestry Development Center,Lishui 323300,Zhejiang,China)

机构地区：[1]遂昌县生态林业发展中心,浙江丽水323300

出　　处：《竹子学报》2024年第2期38-43,共6页Journal of Bamboo Research

基　　金：浙江省遂昌县县校合作科技项目(2022-HZ14)。

摘　　要：【目的】揭示阔叶箬竹(Indocalamus latifolius)母竹和鞭段育苗对育苗数量和质量的影响,探索阔叶箬竹有效的无性繁育技术,为阔叶箬竹推广应用提供优质种苗。【方法】以阔叶箬竹母竹移栽和鞭段移栽为研究对象,对比分析母竹不同留枝节数(1、2、3、4、自然株)和不同鞭段长度(30、40、50 cm)繁育的存活率、新竹数量和基径粗度的差异。【结果】随着留枝节数的增多,母竹移栽存活率逐渐降低,3节枝成活率87.4%,4节枝成活率83%处于造林技术标准的临界点,但新竹数量和基径逐渐增大,3~4个节枝新竹数量达2.5株以上,新竹基径达0.87 cm以上。鞭段长度在30~50 cm之间新竹数量和基径粗度没有明显变化,成活率40、50 cm的明显高于30 cm的。【结论】采用留养3~4个节枝的母竹和长度为40~50 cm的鞭段进行阔叶箬竹无性繁育均可以取得较好的育苗效果。【Objective】To explore the effects of asexual propagation with mother bamboo and rhizome seedling on the quantity and quality of Indocalamus latifolius,as well as the effective asexual breeding techniques for I.latifolius to provide high-quality seedlings for the promotion and application of I.latifolius.【Method】Transplantation of mother bamboos and rhizomes of I.latifolius was the research object,and the survival rate,the number of new bamboos and the base diameter were compared and analyzed with different number of mother branches of different nodes(1,2,3,4,natural plant)and different lengths of rhizome segments(30,40,50 cm).【Result】With the increase of the number of branches left,the survival rate of the transplanted mother bamboo gradually decreased,the survival rate of 3-node branches was 87.4%,and the survival rate of 4-node branches was 83%,which was the critical point of technical standard for afforestation.However,the number and base diameter of new bamboos gradually increased,the number of new bamboos with 3-4 nodes was more than 2.5,and the base diameter of new bamboos was more than 0.87 cm.There were no significant changes in the number and base diameter of new bamboos grown from rhizome segments of 30-50 cm,and the survival rate of bamboos grown from rhizome segments of 40 and 50 cm was significantly higher than that of 30 cm.【Conclusion】Asexual breeding of I.latifolius with mother bamboo of 3-4 nodes and 40-50 cm rhizome segments can achieve better seedling cultivation effect.

关 键 词：阔叶箬竹 母竹移栽 鞭段移栽 成活率 新竹数量 新竹基径 

分 类 号：S795[农业科学—林木遗传育种]