Invasive Species Compendium

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Abstract

Study on cutting seedlings growth characteristics of 19 different introduced poplar cultivars in Yili.

Abstract

Experiments was conducted on cutting seedlings for the 19 introduced poplar cultivars in Pingyuan Forest Farm of Yili in 1995. Variance and cluster analysis has been made based on analysis of ground diameter growth, height for 1-year random sampling cutting seedlings. The results showed that the significant differences (P<0.01) can be found from the seedling height and ground diameter growth among the 19 different cultivars and the biggest differences ranging 1.04 m and 0.83 cm. Four of the cultivars are fastest growing (P. deltoids × P. nigia 78 - 8, 'Yousheng' 003, P. generose Herny, P. deltoides × P. nigra) and their height and ground diameter can reach 3.22 m and 2.36 cm respectively; The faster 12 ones are P. deltoides × P. nigra 78 - 133, P. deltoides × P. nigra - 1, P. euramericana Dode Guinier cv sacran etc. while the lowest growing three cultivars are P. stalinetz, P. siminii canden × P. russkii - 9, P. euramericana cv Robusta - 227.