Chauhan, RajniSingh, Kulwinder2017-05-032017-05-032013http://krishikosh.egranth.ac.in/handle/1/5810010468The field trials were conducted during 2012-13 at three locations (environment 1: University Seed Farm, Ladhowal; environment 2: Badhian forest, Range and Division Dasuya and environment 3: Alamwala forest nursery, Range Malout, Division Faridkot) located in central plane zone, sub-mountain undulating zone and south-western zones of Punjab respectively. Twenty-two willow clones were planted in a randomized block design with three replications, to study the genotype and site interaction among different clones. The data for plant height and collar diameter was recorded at all the three locations and data for other parameters i.e., leaf parameters, leaf display, number of branches and insect/pest attack was recorded only at environment 1. All the characters under study at environment 1 exhibited significant differences among different clones. Differences among clones for plant height and collar diameter were significant under all three environments as well as after pooled analysis. On the basis of plant height and collar diameter, clone UHFS-13, UHFS-1 and UHFS-19 was best in environment 1, environment 2 and 3, respectively. Clone UHFS-1 and UHFS-19 showed wider adaptability. The values of genotypic variability for different traits were found between low to high and for phenotypic variability between moderate to high. Values of heritability and genetic gain were observed between low to high. On the basis of growth, number of branches leaf parameters and leaf display, clone UHFS-2, UHFS-5, UHFS-12 and UHFS-18 will be suitable for agroforestry, and clone UHFS-3, UHFS-13, UHFS-14 and UHFS-16 for biofuel or phytoremediation and Clone UHFS-10 for landscape purposes.ennullThesis