友好大青杨评比林优良无性系选择

The Selection of the Excellent Non-Sexual Selection of Populus ussuriensis

以2012年在友好林业局建立的包括19个产地92个无性系的5年生(包括1年苗龄)大青杨评比林为试验材料,对其生长性状进行调查分析的结果显示:树高、胸径在不同无性系间均达到0.01极显著水平;5年生树高群体平均值5.68 m,其中有49个无性系超过平均值,占参试无性系的53.3%。胸径群体平均值5.23 cm,超过平均值的有47个无性系,占参试无性系的51.1%;结合树高、胸径两项指标,从参试的92个无性中综合评选出H14、O15、L26、W3、W1五个优良无性系,树高大于群体平均值24%~30%以上,年平均生长量为1.40~1.48 m;胸径大于群体平均值37%~62%以上,年平均生长量为1.43~1.69 cm。

Take5yearsold of Populus ussuriensis comparison trees from92clones of19orgin(including1year seeding age)as materials,based on the established in Youhao forestry bureau in2012.Through investigation and analysis growth characters,the results showed that it was a significant level of0.01in the height and diameter at breast height of the different clones;group average value of5years old trees height was5.68m;of these,49clones were more than average,accounting for53.3%of the participants.group average value of diameter at breast height was5.23cm,There were47clones above average,accounts for51.1%of the participants.Combined with trees height and diameter at breast height,H14,O15,L26,W3andW1were selected from92asexual patients.Trees are larger than the group average of24%~30%.The average annual growth was between1.40and1.48m.The chest diameter was more than37%to62%above the group average,The average annual growth was between1.43~1.69cm.