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Sharma, C. M.
- Additive Genetic Variation in Seedling Growth and Biomass of Fourteen Pinus Roxburghii Provenances from Garhwal Himalaya
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1 Department of Botany, HNB Garhwal University, Post Box # 51, Srinagar Garhwal-246 174, Uttarakhand, IN
1 Department of Botany, HNB Garhwal University, Post Box # 51, Srinagar Garhwal-246 174, Uttarakhand, IN
Source
Indian Journal of Science and Technology, Vol 2, No 1 (2009), Pagination: 37-45Abstract
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 ischolar_main length and minimum for collar diameter. Among different seed sources, the ischolar_main 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 ischolar_main length, ischolar_main biomass, ischolar_main /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.Keywords
Additive Variance, Chir Pine, Coefficient of Variance, Genetic Gain, Provenance VariationFull Text
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- Vegetation Structure, Composition and Diversity in Relation to the Soil Characteristics of Temperate Mixed Broad-leaved forest along an Altitudinal Gradient in Garhwal Himalaya
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Authors
Affiliations
1 Department of Botany, HNB Garhwal University, Post Box-51, Srinagar Garhwal-246 174, Uttarakhand, IN
1 Department of Botany, HNB Garhwal University, Post Box-51, Srinagar Garhwal-246 174, Uttarakhand, IN
Source
Indian Journal of Science and Technology, Vol 2, No 7 (2009), Pagination: 39-45Abstract
The focus of the study is to characterize the structure, composition and diversity of Banj Oak (Quercus leucotrichophora) forests at different altitudes and slopes in Mandal-Chopta area of Garhwal Himalaya. Competing co-dominant tree layers comprised of Persea duthiei and D. himalense at the higher altitude (2100m a.s.l.) and steeper slope (45°); D. himalense and Betula alnoides at the middle altitude (1700m a.s.l.) and moderate slope (38°); and Lyonia ovalifolia and Myrica esculenta at lower altitude (1550m a.s.l.) and gentles slope (30°) were observed in these forests. Community diversity was highest (3.140) at the higher altitude (site-1) whereas the concentration of dominance followed the opposite trend of the diversity. Physico-chemical properties of soils have revealed that availability of higher average total nitrogen and moisture contents might have given birth to higher total basal cover values at middle altitude. The tree density was positively correlated with the tree diversity and tree richness (P<0.001). The vegetational parameters A/F ratio, Shanon-wiener index, Species richness, Margalef index and soil parameters especially pH and available phosphate (kg/ha) were significant (P<0.05%) among the forest sites.Keywords
Banj Oak Community, Himalaya, Species Evenness, Vegetation AnalysisFull Text
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- Phytodiversity (Angiosperms and Gymnosperms) in Chaurangikhal Forest of Garhwal Himalaya, Uttarakhand, India
Abstract Views :616 |
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Authors
Affiliations
1 Dept. of Botany, HNB Garhwal University, Srinagar Garhwal-246 174, Uttarakhand, IN
1 Dept. of Botany, HNB Garhwal University, Srinagar Garhwal-246 174, Uttarakhand, IN
Source
Indian Journal of Science and Technology, Vol 3, No 3 (2010), Pagination: 267-275Abstract
We report the phytodiversity richness of the moist temperate Chaurangikhal forest of Garhwal Himalaya, Uttarakhand, India. We recorded a total of 231 species (227 angiosperms and 4 gymnosperms) belonging to 69 families (67 angiosperms and 2 gymnosperms) and 159 genera (156 angiosperms and 3 gymnosperms). The dicotyledones and monocotyledones were represented by a total of 62 and 5 families, respectively. In the study area, the ratio of family to genus was 1: 2.3, family to species was 1: 3.35 and a genus to species was 1: 1.45. Among all the species recorded the 88.31% (204 spp.) of the total species had common occurrence, whereas rest 11.69% (27 spp.) of the species had uncommon occurrence in the study area. The 10 dominant families of the study area were Lamiaceae, Asteraceae, Rosaceae, Ranunculaceae, Fabaceae, Caryophyllaceae, Polygonaceae, Rubiaceae, Gentianaceae and Poaceae. This data may be useful for biodiversity managers and for optimal utilization of plant resources.Keywords
India, Phytodiversity, Floristic Composition, Plant Distribution, Garhwal Himalaya, Moist Temperate ForestFull Text
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