Thumbnail Image

Theses

Browse

20151
Reset filters
Subject: Forestry × Author: Kavita × End date: 2022 × Type: Thesis × Thesis Type: Ph.D ×
Reset filters

Search Results

Now showing 1 - 1 of 1
  • Thumbnail Image
    ThesisItemOpen Access
    Characterization of seed sources of sissoo (Dalbergia sissoo roxb.) using molecular markers
    (CCSHAU, 2015) Kavita; Bimlendra Kumari
    The ecological and economic importance of Dalbergia sissoo and declination of its population in its natural habitat promoted the present study. Based on desired economically important characters, seed sources were selected from nine provenances covering different agro-ecological regions of Haryana. The progeny testing was done for one year in the nursery of Forestry department, CCS H.A.U., Hisar. Genetic diversity was evaluated by using RAPD markers. Significant variations were observed among the provenances as well as agroecological regions for all the plus tree characters viz., total height, diameter at breast height, clear bole height, crown spread and straightness. Correlation among most of the characters was also significant with maximum value 0.923 between total height and diameter at breast height. Variations among morphological characters of pods and seeds were significant. High heritability with high genetic advance was observed for pod and seed weight character. The maximum genotypic and phenotypic correlation (0.598 and 0.519) was observed between seeds per pod and 100 pod weight, and seed length and 100 seed weight, respectively. Ample genetic variation was also observed for germination percentage, seedling height, collar diameter, number of branches per seedling, height of first branch, root length, fresh weight and dry weight among the progenies of the selected plus trees. Fresh weight and dry weight characters were found highly significantly correlated, followed by root length and total height. Among all the progenies, the progeny of Ambala seed sources at a stage of six month and Hisar progenies at 12 month age was found outstanding. Genetic diversity among the plus tree progenies assessed with the help of 60 RAPD primers displayed the values of genetic similarity coefficient ranging from 0.49 to 0.81, which indicated a broad genetic base of Dalbergia sissoo in selected area of Haryana state.