杨树无性系沙区引种造林综合评价的研究

本文是在引选育杨树无性系苗期综合评价基础上 ,对苗期选出的优良无性系进行造林综合评价的初步结果。经 5～ 8a造林对比试验 ,并通过 5项主要因素指标评价和 2项次因素指标综合评价 ,初步选出了2 3个无性系。其中 ,建 1 0 #(P .×euramericanacv’ND1 82 )、小黑 84 0 1 (P .simonii Baicheng×P .nigra Aeriai84 0 1 )、白林 2 #(P .Nigra×P .pyramidalis)、欧美I M (P .euramericanacl.“I M”)、中林 86 2 2 (P .Zhonglin 86 2 2 )、黑林 1号 (P .xiaohei×P .p1 5Acl.)、辽杂 2 #(P .simonii×Xiaozhuannicacl.Liaoza 2 )、拟青×山海关 (P .nigra×P .deltoidescv.“Shanhaiguan”)、中赤黑小 (P .nigra×P .simoniicvZhongchi’)、法库 1 #(P .simonii×Xiaozhuannicacl.’Faku 1 )等 ,其生长量明显超过当地主栽树种白城 4 1 #(P .simonii×Xi aozhuannicacl’Baicheng 4 1 )和白城 2 #(P .simonii×Xiaozhuannicacl’Baicheng \|2 ) ,抗寒、抗病、抗虫性、树干干型也都表现突出 ,适合科尔沁沙地有选择性种植和推广。

PRELIMINARY STUDY ON MULTIPLE EVALUATION FOR INTRODUCTION AND PLANTATION OF POPLAR CLONES IN KORQIN SANDY LANDS

Since 1989,FAO project GCP/CPR/009/BEL of the Three North Shelterbelt Programme has assisted in introducting more than 650 poplar clones.This material has been stored in clonal banks,and parts of it is being tested in field clonal trials in different sites of Korqin sandy lands.This paper summarizes the preliminary re s ults from four main trials.23 clones had been selected by multiple evaluation co nsisted of 5 main tactor indexes and 2 secondary tactor indexes from contrast tr ials based on primary aelection.The results showed that the growth increment of clones Jian 10\+# (P.×euramericana cv' ND182),Xiaohei 8401 (P.simon ii-Baicheng × P.nigra-Aertai 8401),Bailin 2\+#(P.nigra × P.pyra midalis),Euro-American I-M (P.euramericana cl.“I-M”),Zhonglin 86-22( P.Zhonglin 86-22),Heilin 1\+#(P.xiaohei × P.p15A cl.),Liaoza 2\+#( P.simonii × Xiaozhuannica cl.Liaoza-2),Nixing × Shanhaiguan (P.nigr a × Puplus deltoides cv.“Shanhaiguan”),Zhongchi Heixiao(P.nigra × P.si mo nii cv Zhongchi'),Faku 1\+#(P.simonii × Xiaozhuannica cl.Faku-1),etc .,was obviously beyond Baicheng 41\+#(P.sinonii × Xiaozhuannica cl.Baic heng- 41)and Baicheng 2\+#(P.simonii × Xiaozhuannica cl.'Baicheng-2),which w e re the local main tree species.Meanwhile,cold resistance,disease and pest resist ance,and stem form of these clones also behave prominently.So the above clones a re very suitable for planting and extending in Korqin sandy land.