2个杨树新无性系的繁殖、生长和形质特性研究  

Study on Characteristics of Asexual Reproduction,Growth and Stem-form Qualities of 2 New Poplar Clones

作　　者：刘培红 王晓英[2] 王明奎 

机构地区：[1]山东省林业科技培训中心,山东济南250013 [2]泰安市泰山林业科学研究院,山东泰安271000 [3]烟台市龙口七甲林业站,山东烟台265722

出　　处：《安徽农学通报》2015年第18期31-33,共3页Anhui Agricultural Science Bulletin

基　　金：山东省博士基金项目(BS2015NY013);山东省农业良种工程项目(2012-2015)

摘　　要：为了综合评价A50、A69杨树无性系的造林学特性,从无性繁殖特性、生长特性和形质特性等方面开展了比较研究。结果表明,杨树无性系A50和A69的育苗成活率和造林成活率均较高,具有很强的扦插生根能力。通过对各无性系的对比结果表明,6年生A50和A69杨树无性系的胸径、树高和单株材积显著优于I-69杨树无性系,也优于中菏1号。就形质指标而言,A50和A69具有树干尖削度小、相对削度大等较优的形质特征,表明其出材率较高。In order to highlight the afforestation characteristics of new poplar clones of AS0 and A69,we conducted a comparative study on characteristics of asexual reproduction, growth and stem-form qualities. The results showed that, the A50 and A69 poplar clones was characterized with high cutting survival rate and afforestation survival rate,and the rooting quantity under water culture also indicated that the AS0 and A69 poplar clones had very strong rooting ability for cutting. In terms of average diameter at breast height, average stem height and average individual tree volume, both the AS0 and A69 poplar clones were signifi- cantly superior to 1-69 poplar clones,and they were also superior to P. deltoites cv.＇Zhonghe-l＇. In terms of stem-form qualities, the AS0 and A69 poplar clones were characterized with smaller stem taperness and higher relative taper,and it showed they have higher merchantable volume yielding rate.

关 键 词：杨树 无性系 无性繁殖 形质特性 

分 类 号：S79[农业科学—林木遗传育种]