Genetic variability in growth, volume and stem stability traits for Eucalyptus clones in North-western India

Genetic variability in growth, volume and stem stability traits for Eucalyptus clones in North-western India

Authors

  •   Pavneet kaur   Department of Forestry & Natural Resources, Punjab Agricultural University, Ludhiana
  •   Ashok Kumar Dhakad   Department of Forestry & Natural Resources, Punjab Agricultural University, Ludhiana
  •   GPS Dhillon   Department of Forestry & Natural Resources, Punjab Agricultural University, Ludhiana

DOI:

https://doi.org/10.36808/if/2022/v148i12/163974

Keywords:

Eucalypts clones, Variability, Form quotient, Stem stability, Volume, Rotation.

Abstract

Ten clones of Eucalyptus camaldulensis planted at central plains of north-western India were evaluated for growth traits, stem stability and wood volume at different age rotations. A significant amount of genetic variations were found for all traits assessed i.e. height, diameter at breast height (DBH), form quotient, volume and stem stability. Clones P-23 was observed best for DBH, volume and stem stability against the winds (wind firmness) and tree architecture because of low height diameter ratio (more stem stability), whereas P-46 was found best for height with less taper stem. High heritability was observed for height and volume clearly suggested the potentiality of the clonal material for the improvement through selection and evaluation. Genetic advance for height and DBH is increased substantially par se with the increase in the age of tree. The high correlation between the volume and dbh in eucalypt clones means that the selection based on dbh represents the volume with adequate accuracy. Volume equations were developed for height, dbh and form quotient functions. Volume is increased by 14.07% at compound rate of DBH as explained by bivariate fit of volume by DBH and model is highly fit (r2=0.8389). Negative effect has been observed by form quotient for volume estimation in clonal plantations of Eucalyptus.

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Author Biographies

Pavneet kaur, Department of Forestry & Natural Resources, Punjab Agricultural University, Ludhiana

Research Scholar

Ashok Kumar Dhakad, Department of Forestry & Natural Resources, Punjab Agricultural University, Ludhiana

Working as Scientist (Tree Breeding)

GPS Dhillon, Department of Forestry & Natural Resources, Punjab Agricultural University, Ludhiana

Principal Scientist (Tree Breeding)

Published

2022-12-31

How to Cite

kaur, P., Dhakad, A. K., & Dhillon, G. (2022). Genetic variability in growth, volume and stem stability traits for Eucalyptus clones in North-western India. Indian Forester, 148(12), 1196–1203. https://doi.org/10.36808/if/2022/v148i12/163974
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