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黑龙江省杨树良种区域试验协助组,于1981年5月将经初步评选出的25个杨树新品系以光皮小黑杨为对照,分别在全省14个协作点区域试验。试验采用随机区组三次重复。经过4年区域试验,作者对试验数据进行了各品系生长量的分析比较、形质比较、感虫性比较、感病性的比较、抗寒性比较、物侯期比较。并综合以上比较,将其数量化,用评分法表现各品系的优劣。评比结果在25个品系中A_(100)、A_(15)等7个品系显著超过对照品系,A_2、富锦1号接近对照品系。其余各品系与对照品系相差悬殊,有待于今后进一步试验观察。
Heilongjiang Province poplar varieties Regional Experimental Assist Group, in May 1981 the initial selection of 25 poplar new strains of Populus xiaoiensis as a control, respectively, in the province’s 14 collaborative regional test. Randomized block trial repeated three times. After four years of regional trials, the authors conducted comparative analysis of the growth of the strains in the experimental data, comparisons of physical properties, comparison of susceptibility to insects, comparison of susceptibility, comparison of cold resistance, Based on the above comparisons, we quantified it and used the score method to show the pros and cons of each strain. Among 25 lines, 7 lines of A_ (100) and A_ (15) significantly exceeded that of the control line, while A_2 and Fujin 1 were close to the control line. The rest of the strains and control strains vary greatly, to be further tested in the future.