Investigation on growth, survival and homogeneity of different Poplar clones at selection nurseries in Markazi province

The current research is the first step on integral investigations for selection and production of appropriate seedlings and clones for development of poplar plantations. Diameter, height, survival and homogeneity of 70 clones of native and exotic poplar species were studied in an experimental nursery in central Iran, Markazi province in frame of randomized complete blocks design with 3 replications. Results indicated that P.x. interamericana from hybrid groups, P. trichocarpa 044/62 from section Tachamahaca, P.a. 44/9 from section leuce, P.e. I-154, P.n. 63/135, P.e. 476, P.n. 62/140, P.n. 62/197 and P.e. triplo from section Aigerios showed the maximum values of the studied parameters. P. ciliata from section leucoides and P. euphratica from section Turanga showed the weakest values.