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珙桐山地育苗试验
引用本文:徐华,宋晓斌,郭树杰,刘永红.珙桐山地育苗试验[J].西南林学院学报,2007,27(6):35-38.
作者姓名:徐华  宋晓斌  郭树杰  刘永红
作者单位:1. 陕西省林木种苗工作站,陕西,西安,710082
2. 西北农林科技大学林学院,陕西,杨凌,712100
基金项目:陕西省林业厅[陕林科研字(2004—1)]资助项目
摘    要:采用不同的种子催芽方法、育苗基质进行珙桐山地育苗试验,结果表明:露天覆沙低温催芽法出苗效果优于牛粪埋种催芽,出苗率提高17.1%;秋季播种优于春季,出苗率提高14.6%;腐殖质土育苗优于沙土,苗木高生长量、地径生长量分别提高59.3%和41.6%;育苗地最佳海拔为1 250~1 500 m;春梢带二次枝扦插能够萌生不定根,而秋梢扦插不能萌生不定根.

关 键 词:珙桐  山地育苗  育苗技术
文章编号:1003-7179(2007)06-0035-04
收稿时间:2007-09-05
修稿时间:2007年9月5日

Experiment of Davidiai involucrata Seedling Breeding in Mountainous Area
XU Hua,SONG Xiao-bin,GUO Shu-jie,LIU Yong-hong.Experiment of Davidiai involucrata Seedling Breeding in Mountainous Area[J].Journal of Southwest Forestry College,2007,27(6):35-38.
Authors:XU Hua  SONG Xiao-bin  GUO Shu-jie  LIU Yong-hong
Abstract:The seedling breeding experiment of Davidiai involucrata was conducted with different seed treatment methods and varied substrates in the mountainous area.It was indicated by the results that: Low temperature stratification with river sand in the open air could promote seedling emergence rate by 17.1% compared to the method of burying the seeds in cattle manure.The seedling emergence rate by sowing in the autumn was 14.6% higher than sowing in the spring.Humus substrate could increase the height growth and basal diameter growth by 59.3% and 41.6% respectively than those of regular sand substrate.The best seedlings of D.involucrata were bred at elevation range between 1 250 m and 1 500 m.Adventitious roots could take place on cuttings prepared from spring shoots with secondary sprouts,while there were no adventitious roots taking place from cuttings made of the autumn shoots.
Keywords:Davidiai involucrata  sapling breeding in mountainous area  breeding techniques
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