平欧杂种榛压条苗生根及生长情况调查研究

Rooting of Corylus heterophylla ×Corylus avellan L. Seedlings in Horqin Sandy Land

以科尔沁沙地栽培的辽榛3号(84-226)、辽榛7号(82-11)和达维(84-254)平欧杂种榛(Corylus heterophylla Fisch.×Corylus avellana L.)为研究对象,应用自根直立压条法进行苗木繁育,并对繁殖苗的生根情况进行统计分析,结果表明:辽榛7号的生根率最高且生根数量最多;达维的生根基径和压条苗地上部分最佳。综合分析表明,辽榛7号的压条苗生根情况最好;3个品种压条苗均达到一级苗标准,能满足生产需要。

Taking Corylus heterophylla Fish.×Corylus avellana L.‘Liaozhen 3’（84-226）,Corylus heterophylla Fisch.×Corylus avellana L.‘Liaozhen 7’（82-11）and Corylus heterophylla Fish.×Corylus avellana L.‘Dawei’（84-254）cultivated in Horqin sandy land as the research object,the method of self-rooted mound layering was applied,and the rooting of breeding seedling were analyzed statistically.Result shows that the rooting rate of Corylus heterophylla Fisch.×Corylus avellana L.‘Liaozhen 7’is the highest and the number of rooting are the most.The rooting basal diameter of Corylus heterophylla Fisch.×Corylus avellana L.‘Dawei’are the highest.The optimal part of the above grounds shows that the rooting of Corylus heterophylla Fisch.×Corylus avellana L.‘Liaozhen 7’is the optimal.Three varieties of layerage seedlings have reached a level of seedlings standards,to meet the production needs.