Abstract
Specific gravity of wood was measured of samples collected at breast height of Poplars planted at two locations of Punjab viz. central plain region (Ludhiana) and semi-arid region (Bathinda). Significant differences among clones were noticed at both the locations. Specific gravity ranged from 0.403 to 0.475 in central plain region and from 0.356 to 0.436 in semi-arid region. The genotype x environment interaction was also significant. The genotypic and phenotypic coefficients of variation were low (2.88 to 5.88%). The heritability was moderate (40.82%) in central plain region and high (64.82%) in semi-arid region. Selection of promising clones for end use of wood on basis of specific gravity has been discussed.
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