آزمایش نهایی سازگاری ارقام مختلف صنوبر (پوپولتوم مقایسه ای) جهت معرفی مناسب ترین آنها به بخش اجرا (کرمانشاه)

Kermanshah one of the maine regions of poplar cultivation and production there for in order to select the best and adapted poplar clones this research were carried out in mehrgan stations of Agricultural and natural Resources research center of kermanshah province (ANRRCK). eighteen (18)poplar clones (Populus euramericana and P.deltoides) selected from selection nurseries. Were cultivated in a Randomized Complete Block Desing (RCBD) with 3 replications on 44ا meters (open crown) distance in stations during (1993 2001) At the end of each growth season on the clones diameter (d.b.h), clones height, wood volume per hectar, annuale diameter and calculated. In the last year in addiction to mentioned characters the collar diameter, mediadiameter, top diameter and clone weight were measured. Analysis of variance, combined analysis variance and mean comparision were conducted for all traits ever 8 years.Results endicated that among open crown clones populus. euramericana 488, P.eur americana 214, P.euramericana 92/40, P.euramericana 455, were selectes as the highest productive clones and recommended to cultivateen kermanshah province. The P.eur americana 488 and P.deltoides 77/51 were the heighest amout of wood production in the each species. Key Word:popolar,populus,euramericana,deltoids, open crown, clones diameter, clones height, Kermanshah.