三抗杨新品系引种试验研究  

Study on Introducing of San-kang Populus Strains

作　　者：高克姝[1] 

机构地区：[1]山西省林业科学研究院,山西太原030012

出　　处：《山西林业科技》2004年第1期1-5,10,共6页Shanxi Forestry Science and Technology

基　　金：山西省科技厅"十五"科研项目(011028)

摘　　要：三抗杨是白杨派内人工多树种杂交培育的抗逆性较强的新品系,1989年引进山西,引种结果表明:1)L2,L4,L10,L9,L1五个新品系的材积与三毛杨无显著差异,但与易县毛白杨雌株相比提高了99%～131%。五个新品系的干形、干高6m以下材积和抗风折、抗水泡溃疡病的能力显著优于三毛杨。2)三抗杨的高、径生长与叶面积生长和月平均气温关系紧密,即当叶面积生长在6月底达到最大值时,高、径生长开始进入速生期;月平均气温为21.6℃～28.5℃时是林木的速生期。3)苗期多点区试表明,永济、太原与祁县、杭州比,其树高因子存在极显著差异,祁县和杭州苗高相近。其径生长,永济、太原极显著大于杭州,祁县、杭州间差异达显著水平。高、径生长变异系数较小,在0.3%～4.1%间变动,说明各地测定的数据离散度小,性状稳定可靠。San-kang Populus (P.canescons×p.tomentosa or p.alba×P.glandulosa×P.tomentosa) comes from the multi-parent hybridization,it was introduced into Shanxi Province in 1989.The test results show that;1) There is a no significant difference in timber volume between five strains (L2,L4,L10,L9,L1) of san-kang populus and triploid P.tomentosa,but the five strains' gain of timber volume is much than 99% and 131% of that of Yixian P.tomentosa respectively,the latter are as contrast.However,San-kang populus's characteristics,such as trunk traits,timber volume (stem of less than 6 metres long),resistance to wind-broken ability and blister-ulcer disease,are prior to that of triploid P.tomentosa.Therefore,it is selected first for timber and greening.2) There is a close relation between height and stem-diameter,leaf area,and monthly average temperature,that is,in the last day of June,while leaf area is up to maximum,San-kang populus begins to grow quickly,at the same time,monthly average temperature is at 21.6℃～28.5℃.3) The multi-region-test shows that tree height gives a significant difference in Yongji,Taiyuan,Qixian and Hangzhou,the two latter support the same tree height.Stem-diameter of the tree in Yongji and Taiyuan is an extremely significant difference to that in Hangzhou.There is a less variation coefficient between height and stem-diameter,varing from 0.3% to 4.1%,which means these data collected in these four areas are reliable,can reflect the San-kang populus's growth characteristics.

关 键 词：三抗杨 引种试验 物候期 生长节律 生长量 

分 类 号：S792.11[农业科学—林木遗传育种]