1995年对伊犁州19个引种杨树主栽品种进行扦插育苗试验,通过对1年生苗木地径、苗高随机抽样调查后进行方差及聚类分析,结果表明:伊犁州19个杨树引种品种的苗高、地径存在极显著差异(P＜0.01),1年生扦插苗苗高及地径最大差距可达1.04 m、0.83 cm.其中,生长最快的品种有78 -8、优胜003、格氏、中林23等4个,其苗高平均为3.22 m,地径平均为2.36 cm；生长较快的有78 - 133、中林、沙兰杨等12个品种；表现最差的是斯大林、加小×俄9#、健227等3个品种.%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. 04m and 0. 83cm. 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. 22m and 2. 36cm 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.
展开▼
