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Rao, K. N.
- Provenance Variation of Wild Hevea Germ Plasm in a Dry Sub Humid Region of India
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Source
Indian Forester, Vol 137, No 11 (2011), Pagination: 1321-1324Abstract
An evaluation at nursery stage of 56 wild accessions of 3 provenances of Amazon basin, Acre (AC), Rondonia (RO) and Mato Grosso (MT) of wild Hevea brasiliensis (Para Rubber) and 2 rubber commercial clones was carried out at the Regional Research Station of Rubber Research Institute of India located at Sukma , a drought prone area under dry sub humid region of Bastar district in centraleastern India to obtain information about potential of variability in quantitative traits .. Among the different accessions, girth ranged from 3.84 cm (AC 685) to 8.0 cm (RO 876), scion height 133.4 cm (AC 158) to 292.37 cm {RO 897), number of leaves 11.0 (AC 623) to 51.75 (RO 876) and leaf area from 85.49 cm' (MT 58) to 195.60 cm2 (AC 623). The observations revealed wide inter and intra provenance variations for all the quantitative traits. The existence of high variability was evidenced by moderate to high estimates of phenotypic and genotypic coefficient of variation for the traits. High heritability was observed for girth and scion height. Among the three provenances, Rondonia exhibited superiority for most ofthe traits. Ajudicious selection ofthese promising diverse materials would be useful in future breeding programmes.Keywords
Hevea, Wild Germplasm, Provenance, Variability, Heritability- The Oddanchattram Anorthosite
Abstract Views :197 |
PDF Views:143
Authors
Affiliations
1 Geological Survey of India, Op TN, Ponds, Kerala, IN
2 Geological Survey of India, Chennai - 600 090, IN
3 Petrology Division, S R Geological Survey of India, Hyderabad - 500 068, IN
1 Geological Survey of India, Op TN, Ponds, Kerala, IN
2 Geological Survey of India, Chennai - 600 090, IN
3 Petrology Division, S R Geological Survey of India, Hyderabad - 500 068, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 68, No 4 (2006), Pagination: 723-724Abstract
No Abstract.- Geochemistry of Ultramafic Lenses in the Granitoids of the Southeastern Flanks of Shimoga Supracrustal Belt [karnataka] with a Note on the Distribution of Platinum Group Elements and Minerals
Abstract Views :200 |
PDF Views:142
Authors
K. T. Vidyadharan
1,
S. Paranthaman
1,
K. N. Rao
2,
T. C. Devaraju
3,
T. T. Alapieti
4,
R. J. Kaukonen
4
Affiliations
1 Geological Survey of India, Bangalore, IN
2 Geological Survey of India, Hyderabad, IN
3 Department of Studies in Geology, Karnatak University, Dharwad - 580 003, IN
4 Institute of Geosciences, University of Oulu, P 0 Box 3000, FI
1 Geological Survey of India, Bangalore, IN
2 Geological Survey of India, Hyderabad, IN
3 Department of Studies in Geology, Karnatak University, Dharwad - 580 003, IN
4 Institute of Geosciences, University of Oulu, P 0 Box 3000, FI
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 64, No 5 (2004), Pagination: 702-704Abstract
No Abstract.- Petrography and Geochemistry of St. Mary Islands, near Malpe, Dakshina Kannada District, Karnataka
Abstract Views :180 |
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Authors
Affiliations
1 MSPL Limited, Baldota Enclave, Abheraj Baldota Road, Hospet – 583 203, IN
2 F-2, Sree Essen Residency, 186/3 RT Vijay Nagar Colony, Hyderabad, IN
3 310/Block-B, Maharaja Residency, Mangalore, IN
1 MSPL Limited, Baldota Enclave, Abheraj Baldota Road, Hospet – 583 203, IN
2 F-2, Sree Essen Residency, 186/3 RT Vijay Nagar Colony, Hyderabad, IN
3 310/Block-B, Maharaja Residency, Mangalore, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 76, No 2 (2010), Pagination: 155-163Abstract
The present paper documents the petrography, mineral chemistry and petrochemistry of the acid volcanics of St.Mary group of islands. These are essentially characterized by pyroxene bearing rhyolites with average 73.49 wt.% SiO2. All the rhyolites from these islands are acmite normative, hence peralkaline with phenocrysts of zoned plagioclase and sometimes hypersthene/augite. There is depletion of LREE with moderate negative Eu anomaly. The enhancement of HFSE elements indicates their compatibility with continental crust. These rhyolites have high equilibrium temperature (915°C) at relatively lower oxygen fugacity (10-16). The acidic lava flows are anorogenic, within plate rhyolites, generated during northern migration of Indian plate over Marion hotspot.Keywords
Acid Volcanics, Petrography, Geochemistry, St. Mary Islands, Karnataka.- Some Studies of the Plasma Cutting of Aluminium Plates
Abstract Views :225 |
PDF Views:4
Authors
K. N. Rao
1,
G. J. Guru Raja
1
Affiliations
1 Central Mechanical Engineering Research Institute, Durgapur, IN
1 Central Mechanical Engineering Research Institute, Durgapur, IN
Source
Indian Welding Journal, Vol 6, No 3 (1974), Pagination: 80-84Abstract
Plasma arc cutting of metals is of recent origin and is widely employed in the cutting of stainless steels, special steels, non-ferrous metals and their alloys, thick sections of steel and even C.I. In oxygen cutting, the metal burns reacting with oxygen. Therefore, the speed of cutting of carbon steels for which it is widely used is limited by the speed of the chemical reaction of oxygen with iron and the speed with which the molten metal is blown away from the reaction zone.- Residual Stresses in the Heat Affected Zones of Flame Cut Steel Plates
Abstract Views :190 |
PDF Views:4
Authors
Affiliations
1 Central Mechanical Engineering Research Institute, Durgapur 9, IN
1 Central Mechanical Engineering Research Institute, Durgapur 9, IN