Abstract
Study on Ulmus villosa Brandis was carried out in Himachal Pradesh to estimate the genetic variability for morphometric traits of progenies at nursery stage. Seeds were collected from five mother trees each at six seed sources and progenies were raised. All the growth characters, except number of branches, varied significantly among different seed sources and trees within seed source. Leaf area and number of leaves were found to have high coefficient of variability, whereas collar diameter, plant height and petiole length had high heritability with moderate genetic gain suggesting their importance for the success of improvement through selection. Genotypic and phenotypic correlations for all possible pairs were also found out and discussed. Highly significant and positive genotypic and significant phenotypic correlations were observed for height and diameter indicating their significance in indirect selection.
Keywords
Genetic expression, Randomized block design, Average leaf area, Genotypic coefficient, Genetic gain