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Genetic Variability and Association Studies among Morphological traits of Leucaena leucocephala (Lam.) de Wit. Genetic Resources

Author Affiliations

  • 1National Research Centre for Agroforestry, Jhansi-284003, UP, INDIA
  • 2Forest College and Research Institute, Tamil Nadu Agricultural University, Mettpalayam-641301, TN, INDIA

Res. J. Agriculture & Forestry Sci., Volume 1, Issue (8), Pages 23-29, September,8 (2013)

Abstract

Experiment were undertaken to determine variability and correlation among the fifteen Leucaena leucocephala genetic resources from the three states of India viz., Tamil Nadu, Andhra Pradesh and Maharashtra. The observations were recorded on plant height, basal diameter, number of branches and volume index. The fifteen genotypes differed significantly for all the studied traits. The genotypes viz., FCRILL 8 and FCRILL 15 recorded significantly higher plant height, basal diameter and volume index than the rest of the genotypes. The volume index recorded maximum PCV (37.18) and GCV (28.89) and high heritability value of 0.60. The genetic advance as per cent of mean of volume index was 46.23 which were highest among all traits. Volume index exhibited positive and significant phenotypic and genotypic association with plant height (0.76), basal diameter (0.97). Basal diameter exhibited significant phenotypic (0.61) and genotypic (0.77) inter-correlation with plant height. Plant height had positive and non-significant phenotypic (0.02) and genotypic (0.16) inter-association with number of branches. The path analysis study indicated that plant height and basal diameter had direct effect on volume index.

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