杂种马褂木在杨凌地区的引种价值分析

第31卷 第3期 西 南 林 业 大 学 学 报 Vo.l 31 N o .3 2011年6月 J O URNAL OF SOUT HW E ST F ORESTRY UN I VERSI TY

J un.2011

收稿日期:2011-02-25

基金项目:杨凌示范区农业推广基金项目(4130302)资助。

第1作者:韩东锋(1965)),女,硕士,副教授。研究方向:森林资源调查。E-m ai:l hd -f 007@163.co m 。

do:i 10.3969/.j issn .2095-1914.2011.03.004

杂种马褂木在杨凌地区的引种价值分析

韩东锋1

李 静2

钱 坤

3

(1.杨凌职业技术学院生态环境系,陕西杨凌712100;2.陕西省太白林业局,陕西太白721600;

31渭南职业技术学院基础课部,陕西渭南714000)

摘要:对杨凌地区15年生杂种马褂木的生长情况、观赏性、健康状况等进行调查,以当地普遍栽植

的同龄七叶树、栾树为对照,比较分析杂种马褂木的引种价值。结果表明:无特殊保护措施下杂种马褂木能够健壮生长,几乎无病虫害发生,无冻裂和日灼现象;在直径、树高生长量方面,该树种生长量最大,胸径生长速度也远大于栾树和七叶树;对3个树种的干形、冠形、枝形、叶形、花果形、生长整体一致性、抗污染能力等7个观赏指标综合评价结果显示,杂种马褂木得分最高。因此,杨凌乃至关中地区在未来的城乡绿化中可适当扩大杂种马褂木的栽植规模。关键词:杂种马褂木;引种价值;观赏性;抗性中图分类号:S72217 文献标志码:A

文章编号:2095-1914(2011)03-0017-05

Research on the Introduction Value ofH ybrid Tulip

Trees in Yangling Area

HAN Dong -feng 1

,LI Jing 2

,Q I A N Kun

3

(1.Depart m ent of Eco l ogy&Environm en t ,Yang li ng Vocati onal and Techn icalC ollege ,Y angli ng Sh aanxi 712100,Ch i na ;

2.T ai bais han Forestry Bu reau ,Tai bai Shaanxi 721600,C h i na ;

3.Depart m en t of Funda m en talC ourse Educati on,

W ei n an Vocati on al and Technical Coll ege ,W ei nan Shaanx i 714000,Ch i n a)

Abst ract :The i n tr oducti o n value of hybri d t u li p trees was co m parati v el y ana l y zed by observ i n g the gro w th status ,

t h e orna m e ntal pr operties ,and the hea lth conditi o n o f 15-year -old hybrid tuli p tr ees gro w i n g in Yang li n g area ,Shaanx i Pr ovince .A ll the indices of the hybrid t u li p tr ees were co mpared w it h t h ose o f t h e sa m e aged and c o mm only p l a nted buckeye and go l d e nrain tree species i n t h i s area .The results sho wed that the hybri d tuli p trees coul d gro w healt h ily w ith -out any special protection m easures ,t h e trees were not suffered fro m sever e diseases ,i n sect pests ,fr ost crack or sun -bur n .The DB H value and he i g ht gro w th rates o f t h e hybri d tulip treesw ere much hi g her than t h ose o f t h e controls .The co mprehensi v e assess ments w ith tr unk for m ,cro wn tra its ,branch for m ,leave for m ,fr u it shape ,overallgro w th consi s ten -cy and a ir polluti o n resi s tance a m ong the hybri d tuli p trees ,t h e buckeye and go l d enrai n trees sho wed that the hi g hest score w as obta i n ed by the hybrid tuli p tree species .Therefore ,itwas r eco mm e nded that the hybri d tulip tr ees coul d be appropri a tel y extended to be planted both i n the local area for ur ban and r ural gree n i n g a nd afforestati o n .

K ey words :hybr i d tuli p tree ;i n troduction va l u e ;orna m ental pr operties ;resistance

杂种马褂木(L iriod endron tulip i f era XL .Ch i n ense)是我国树木遗传育种学家叶培忠教授利用中国马褂木(L iriodendron chinese (H e m s.l )

Sar g .)(母本)和北美鹅掌楸(L iriodendron tuli -pofera L i n n.)(父本)杂交培育获得的新型园林观赏、绿化树种

[1-2]

。其集中了父母本的优点,表现