Genetic and stability parameters of Eucalyptus tereticornis and Eucalyptus camaldulensis in soils of different salinity and fertility levels


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Authors

  • S.K. Dhanda Department of Forestry, CCS Haryana Agricultural University, Krishi Vigyan Kendra, Jind-126102 (Haryana)
  • O.P. Toky Department of Forestry, CCS Haryana Agricultural University, Krishi Vigyan Kendra, Jind-126102 (Haryana)

Keywords:

Provenances, heritability, genetic gain, variation

Abstract

Eight Australian provenances of Eucalyptus camaldulensis and Eucalyptus tereticornis alongwith a local seed source E. tereticornis were tested in three saline soils (0.45, 2.16 and 3.97 dS m-1 with different fertilizer doses (N, P and organic matter) at Jind, Haryana located in north-western India. The growth of 2 years old plants varied significantly (P<0.05) among the provenances; the height ranged from 184 to 524 cm, the collar diameter from 31 to 106 mm and dry weight of plant from 1.09 to 4.90 kg/plant. The maximum growth was attained by Eucalyptus camaldulensis of Emu Creek, Petford followed by Laura River, Old, while minimum growth was in Eucalyptus tereticornis (Indian local source). The estimates of Pcv, Gcv and Ecv clearly reflected the presence of moderate amount of genetic variation and lesser amount of environmental variation for all the characters. The broad sense heritability estimates were higher than 80 per cent for all the characters. Laura River, Old and Morehead River Old provenances of Eucalyptus camaldulensis for all the characters were ideal as indicated by high mean performance nearly unit regression and non-significant S2d and absence of G x E interaction for all the characters except aboveground biomass. The present study identified the Australian seed sources of Eucalyptus having tolerance to salts. The essential plant nutrients supplied through organic matter or inorganic fertilizers improved the establishment and growth of this species on wastelands.

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Submitted

18-08-2020

Published

20-08-2020

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Articles

How to Cite

Genetic and stability parameters of Eucalyptus tereticornis and Eucalyptus camaldulensis in soils of different salinity and fertility levels. (2020). Indian Journal of Agroforestry, 12(2). https://epubs.icar.org.in/index.php/IJA/article/view/103677