楸树良种‘宛楸8402’  

An Elite Variety of Catalpa bungei'Wanqiu 8402'

作　　者：麻文俊[1] 王军辉[1] 张守攻[1] 翟文继 王秋霞 王平 

机构地区：[1]林木遗传育种国家重点实验室中国林业科学研究院林业研究所,北京100091 [2]河南省南阳市林业科学研究所,南阳473000

出　　处：《林业科学》2012年第11期150-150,F0003,共2页Scientia Silvae Sinicae

基　　金："十二五"国家科技支撑计划( 2012BAD21B03);"十一五"国家科技支撑计划( 2006BAD24B08)

摘　　要：‘宛楸8402’是由自然选优育成的楸树良种,通过嫁接和扦插等无性繁殖方式繁殖。5年生时树高和胸径平均为6.60m和6.60cm,较对照‘大叶金丝楸’高10.0%和4.0%;15年生时胸径和单株材积平均达29.40cm和0.48m3,较对照提高65.4%和182.5%,而材质与对照无明显差异。该品种具有速生、材质优良、抗性强等特点。The variety ＇Wanqiu8402＇ was naturally selected from Catalpa bungei populations which were propagated by grafting and cutting methods.The average height and diameter at breast height（DBH） of five-year-old Catalpa bungei＇Wanqiu8402＇were 6.60 m and 6.60 cm respectively,which were improved by 10.0% and 4.0% compared with the control（C.bungei ＇Dayejinsiqiu＇）;Average DBH and individual volume of 15-year-old trees was 29.40 cm and 0.48 m3,which were improved 65.4% and 182.5% compared with the control.Moreover,qualities of timber had no significant differences between ＇Wanqiu8401＇ and ＇Dayejinsiqiu＇.This elite variety has the characteristics of fast growth,excellent timber qualities,and strong resistance.

关 键 词：楸树 良种 选育 

分 类 号：S722.3[农业科学—林木遗传育种]