Indian Journal of Science and Technology
Year: 2009, Volume: 2, Issue: 1, Pages: 1-9
S. K. Ghildiyal, C. M. Sharma* and Sumeet Gairola
Department of Botany, HNB Garhwal University, Post Box # 51, Srinagar Garhwal-246 174, Uttarakhand, India.
*Author for the correspondence:
C. M. Sharma
Department of Botany, HNB Garhwal University,
Post Box # 51, Srinagar Garhwal-246 174,
E-mail: [email protected]
Fourteen seed sources of Pinus roxburghii from Garhwal Himalaya were evaluated on the basis of variable and heritable characters in seedling growth and biomass production. The maximum environmental coefficient of variance was observed for root length and minimum for collar diameter. Among different seed sources, the root length oscillated between a minimum of 47.60 cm (in Badiyargarh seed source) to a maximum of 73.73 cm (in Kalimath seed source) after eighteen months of seedling growth. Heritability in broadsense for seedling height was coupled with genetic advance and subsequent gain. The phenotypic and genotypic coefficients of variance were observed for root length, root biomass, root /shoot ratio, seedling height and shoot biomass respectively. The maximum seedling biomass (11.372 g/seedling) was recorded for Thalisain seed source, while minimum (5.962 g/seedling) for Badiyargarh seed source, after eighteen months of growth.
Key words: Additive variance, Chir pine, coefficient of variance, genetic gain, provenance variation.
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