Genetic variability and correlation studies in Poplar (Populus deltoides Bartr.)

Forty nine exotic and indigenous clones of Poplar were evaluated for eight morphological traits. These clones have shown considerable variability for all the parameters. Wide range of GCV and PCV was observed for petiole length, diameter and plant height. The heritability estimates were high for almost for all traits accompanied by fair amount of genetic advance. Genotypic correlation coefficients were higher than the corresponding phenotypic values for most of the character combinations. Plant height showed positive and significant correlation with plant diameter indicating that selection can play a great role in the improvement of Poplar clones.