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Subject: Genetics and Plant Breeding × Author: GANGADHARRAO, DHUPPE SUKESH × End date: 2012 × Start date: 2012 × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    PROVENANCE STUDIES IN Albizia lebbek Benth.
    (2012) GANGADHARRAO, DHUPPE SUKESH; THAKUR, I.K.
    ABSTRACT The present investigation entitled “Provenance studies in Albizia lebbek Benth.” was carried out at the research field, Department of Tree Improvement and Genetic Resources, Dr. Y S Parmar University of Horticulture and Forestry, Nauni, Solan (HP) during 2011-12 to evaluate fifteen provenances of Albizia lebbek from Himachal Pradesh. The experiment was laid out in a RBD with three replications. Provenances were evaluated for some phenotypic characters of plus trees, seeds and seedlings and their fodder quality traits. Analysis of variance showed significant differences for all the characters under study. In this study highest mean values for 100 seed weight, seed length and seed width were recorded in P6 (Jachh) provenance and seed germination percentage in P9 (Mubarakpur). Maximum values for biomass traits were found in P11 (Dhaulakuan), P7 (Khatiyad) and P5 (Dehari). Similarly P5 (Dehari), P9 (Mubarakpur) and P12 (Shambuwala) provenances were found superior for fodder quality traits. High heritability coupled with high genetic gain estimates were recorded in characters viz. germination (%), survival (%), seedling height (cm), collar diameter (cm), no of leaves, shoot fresh weight (g), shoot dry weight (g), root fresh weight (g) and root dry weight (g). The shoot dry weight showed highly significant positive genotypic as well as phenotypic association with seedling height, collar diameter, shoot fresh weight, root fresh weight and root dry weight which suggests that shoot dry weight can be improved through selection for these traits. Furthermore divergence studies indicated that hybridization between provenances from cluster III and IV can be utilized for getting the superior recombinants in segregating generations.