Selection of Elite Poplar Varieties for Forestation with Stump Grafting
SONG Jiqin
2013,(6):
148-153.
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With Populus Simonii as root stock,we set up three testing grounds for three comparison tests in Beijing Daxing district.This paper chose seven different poplar varieties including Populus×euramericanacv.Neva,Populus×euramericanacv.Guariento,Populus×euramericanacv.Bellotto,Populus×canadensis Moenchcv.Sacrau 79,P.del.CL.Xinshiji-1,Populus×euramericana cl.Zhonglin 2001 and Populusnigracl.Shiji for stump grafting.The results showed that:1)P.del.CL.Xinshiji-1was the lowest rate of survival and preservation,while the remaining six varieties of scion survival and preservation rates were 80% and 90%.2)Neva,Guarientoand Bellotto were grafted in testing ground 1,the average diameter at breast height,tree height and individual volume of them were larger,and there were no significant differences in data among them;Neva and Sacrau 79 were grafted in intesting ground 2.Compared to P.del.CL.Xinshiji-1,there were no significant data of differences in average diameter at breast height,and tree height.The differences of Neva and Sacrau 79 were not significant in average diameter at breast height,tree height,and individual volume Neva was grafted in testing ground 3.Compared with Zhonglin 2001 and Populusnigra cl.Shiji,the average diameter at breast height,tree height and individual volume were significant,but there was no obvious difference between Zhonglin 2001 and Populusnigra cl.Shiji.3)Comprehensive analysis shows that Neva,Guariento,Bellotto and Sacrau 79 are fine varieties for planting with poplar stump grafting.
