植物生长调节剂对星油藤扦插生根的影响  

Effect of Plant Growth Regulators on Cutting Rooting of Plukenetia volubilis L.

作　　者：王榜琴 余文刚[1] 孟千万[1] 杨泽秀 豆梁晨 宋希强[1] 于旭东[1,3] 

机构地区：[1]海南大学园艺园林学院,海口570228 [2]海南珠峰园林科技有限公司,海口571100 [3]海南大学农学院,海口570228

出　　处：《热带生物学报》2016年第1期48-52,共5页Journal of Tropical Biology

基　　金：海南省产学研一体化专项资金项目(SQ2014CXY0068;CXY20140027);海南省应用技术研发与示范推广专项(ZDXM2014129);海南省中西部高校提升综合实力工作资金项目(201554)

摘　　要：扦插生根具有繁殖系数高、生长周期短、遗传性状稳定、提早开花结实、成本低和操作简便等优点,广泛应用于经济作物育苗。笔者以星油藤Plukenetia volubilis当年生半木质化枝条为插穗材料,采用完全随机试验设计,比较分析了植物生长调节剂种类(ABT1,IBA,IAA和GGR)、质量浓度(50,100,200,500 mg·L^(-1)和浸泡处理时间(0.5,1,2 h)对星油藤插穗生根效果的影响。结果表明:IBA 100 mg·L^(-1)浸泡1 h,ABT1 100 mg·L^(-1)浸泡0.5 h和IBA 50 mg·L^(-1)浸泡1 h,插穗生根率依次为66.67%,63.33%和60.00%,均显著高于对照和其他处理组合;就成活率而言,经IBA 50 mg·L^(-1)浸泡1 h,IBA 100 mg·L^(-1)浸泡1 h和ABT1 50 mg·L^(-1)浸泡0.5 h处理的插穗成活率较好,依次为70.00%,66.67%和66.67%。综合考虑插穗的生根率、成活率及移栽后的生长状况,星油藤插穗生根以IBA 100 mg·L^(-1)浸泡1 h处理最适宜。Cutting,a vegetative propagation method,has been widely used in propagation of economic crops,since it has numerous advantages,such as higher propagation rate,shorter growth cycle,stable genetic traits,lower cost,earlier flowering,etc. An experiment was conducted to study the effects of four plant growth regulators（ ABT1,IBA,GGR and IAA） at four different concentrations（ 50,100,200 and 500 mg·L（-1）） with three different dipping time（ 0. 5,1 and 2 h） on the rooting of one-year-old semi-wooden cutting of Plukenetia volubilis. The results showed that the most effective treatments for rooting were IBA 100 mg · L（-1）（ dipping for 1hour）,ABT1 100 mg·L（-1）（ dipping for 0. 5 hour） and IBA 50 mg·L（-1）（ dipping for 1 hour）,under which the rooting rates of the cuttings were 66. 67 %,63. 33 % and 60. 00 %,respectively,significantly higher than those of the control and the other treatment. As for survival rate,the most effect effective treatments were IBA 50mg·L（-1）（ dipping for 1 hour）,IBA 100 mg·L（-1）（ dipping for 1 hour） and ABT1 50 mg·L（-1）（ dipping for 0. 5hour）,under which the cutting survival rates were 70. 00%,66. 67% and 66. 67%,respectively. Taking into consideration the rooting rate,survival rate and growth condition after transplanting,dipping the cutting in 100mg·L（-1）IBA for 1 hour could be the most suitable treatment for the rooting of P. volubilis cutting.

关 键 词：星油藤 油料作物 生长调节剂 扦插 生根率 

分 类 号：S565[农业科学—作物学]