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Subject: Agroforestry × Author: Samanpreet Singh × End date: 2017 × Start date: 2016 ×
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    Clonal evaluation of Salix for growth parameters
    (Punjab Agricultural University, Ludhiana, 2016) Samanpreet Singh; Sharma, Rajni
    Crop diversification from rice-wheat rotation has attracted the attention of government and farmers of Punjab due to continuous decrease in ground water table and deterioration of soil and water quality due to high use of agro-chemicals. The field trials were conducted during 2015-16 at two locations viz; University Seed Farm, Ladhowal, Ludhiana and Alamwala forest, Range Malout, Division Muktsar in central plane zone and south-western zones of Punjab respectively. Twenty-two willow clones were planted in randomized block design with three replications, to study the clonal variation among different clones for their growth parameters. The data for plant height, collar diameter, number of branches per plant, canopy spread, diameter at breast height and plant biomass were recorded. Soil sample taken from different depths (0-15cm, 15-30cm, 30-60cm and 60-90cm) showed that amount of N and P was low at both the sites. Amount of K was in medium range at these sites. All the characters under study at both the locations exhibited significant differences among different clones. Values were found between low to high for phenotypic variations and between moderate to high for genotypic variations. Heritability per cent was higher for plant height in both the sites. Genetic gain values were found in the range of low to high. On the basis of plant height and collar diameter, clones UHFS-1, UHFS-3 and UHFS-13 performed best at USF, Ladhowal with submerged conditions and clones UHFS-1 and UHFS-19 were best at Alamwala forest area. Clones UHFS-1 and UHFS-19 showed wider adaptability.