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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。
Based on the comprehensive evaluation of clonal poplar clones at seedling stage, the preliminary results of the afforestation comprehensive evaluation on elite clones selected at seedling stage were presented in this paper. After 5 ~ 8a afforestation comparative experiments, and through the comprehensive evaluation of 5 major factors and 2 sub-factors, 23 clones were preliminarily selected. Among them, there was no significant difference between the two cultivars (P. × euramericanacv’ND1 82), Psimonii Baicheng × P. Nigra Aeriai84 0 1, P # Nigra × P. Pyramidalis, IM (P. euramericanacl. “IM”), Zhonglin 8622 (P.Zhonglin 8622), P.liniao 1 (P. xiaohei × P.p1 5Acl.), L.simonii × Xiaozhuannicacl.Liaoza 2), P. Nigra × P. Deltoidescv. “Shanhaiguan”, P. Nigra × P. SimonicvZhongchi ’, P. Simiiii × Xiaozhuannicacl. ’Faku 1) and so on. The growth rate of this species was significantly higher than that of the native tree species P.simonii × Xi aozhuannicacl’Baicheng 4 1 and Psimonii × Xiaozhuannicacl’Baicheng 2, Cold, disease resistance, insect resistance, dry trunk are also outstanding performance, suitable for Horqin Sand selective planting and promotion.