环境控制条件下不同因素对笔管榕扦插的影响研究  

Study on Effect of Different Factors in Cutting Propagation of Ficus wightiana under Controlled Environment

作　　者：郑坚[1] 陈秋夏[1] 黄建[1] 卢翔[1] 叶延岭 杨宁生[1] 

机构地区：[1]浙江省亚热带作物研究所,浙江温州325005 [2]温州市龙湾区农林局,浙江温州325024

出　　处：《中国农学通报》2009年第2期156-159,共4页Chinese Agricultural Science Bulletin

基　　金：浙江温州市科技计划项目"温州市生态公益林配套技术研究"(S2003A007);浙江温州市科技计划项目"东方杉等几种沿海防护林植物的引选;繁育及应用示范"(N20070028)

摘　　要：笔管榕是分布最北的榕树,为城市道路绿化、沿海防护林营建的优良树种,极具推广价值。笔者旨在探讨笔管榕扦插育苗技术,为其扩大栽培规模奠定基础。通过在受控的不同环境因子条件下,选用不同木质化程度的笔管榕枝条插穗,经不同浓度萘乙酸(NAA)浸泡10min或浓度300mg/L的ABT生根粉浸泡不同时间后,扦插于不同组分及比例的基质中。研究结果表明:(1)插穗以当年生半木质化嫩枝为宜;基质以泥炭土40%+珍珠岩30%+河沙30%为最佳,生根时间仅20天,成活率达82.6%;(2)ABT生根粉、NAA处理均能促进笔管榕插穗生根和成活,其中使用ABT生根粉以浓度300mg/L浸泡45min为佳,生根时间仅22天,成活率达80.3%;使用NAA以600mg/L浸泡10min为宜,生根时间仅21天,成活率达83.0%。因此,在受控的温度、光照、相对湿度和基质水分环境条件下,选择适宜的枝条插穗和基质,并进行适当激素处理,可使笔管榕扦插生根成活率达80%以上。Ficus superba vat. japonic, a Ficus species of northernmost distribution, is a choiceness species in greening of urban streets and building of coastal protection forest, so has great extension value. To lay the foundation of expand its cultivation scale, this paper aims at study the cutting techniques of Ficus wightiana. In the controlled condition of different environmental factors, branches of different lignification extent were selected, and were dealt with dipping in NAA solutions of different concentration for 10 minutes or ABT rooting powder of concentration 300 mg/L for different times, then cut in substrates of different component and ratio. The results shown that （1） one-year-old semi-lignification twig were the best techniques. V（peat）： V （perlite）：V （sand） 40：30：30 were the best techniques. By applying techniques above, the surviving rate could reach 82.6%, and the time of rooting was only 20 days. （2） ABT rooting powder and NAA can both promote rooting and surviving. The optimal hormone treatments were ABT （300 mg/L） for 45 minutes and NAA （600 mg/L） for 10 minutes. The former hormone treatment could brmg the surviving rate at 80.3%, and the time of rooting was only 22 days. The latter hormone treatment could bring the surviving rate at 83.0%, and the time of rooting was only 21 days. The conclusion was educed that the rooting and surviving rate for cutting propagation of Ficus wightiana could reach above 82% under controlled environment of temperature, intensity of illumination,relative humidity and moisture of substrate, selecting appropriate stem cuttings and substrate,treated appropriate hormone treatment.

关 键 词：笔管榕 环境控制 激素处理 基质 插穗 扦插育苗 

分 类 号：S723.132.1[农业科学—林木遗传育种]