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Kumar, Rajesh
- Soil Organic Carbon Store in Different Forests of India
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Indian Forester, Vol 129, No 6 (2003), Pagination: 714-724Abstract
Global warming and emission of CO2 are of world wide concern because these are creating environmental imbalance and are a long term threat to the well being of all life on earth. Soil is a major sink of carbon. 9815.95 million tonnes of Soil Organic Carbon (SOC) store was estimated in total forest soils (as per 1994 forest stands) under 19 species spread over 27 States and Union territories in India. Spruce forest soil has maximum SOC store (386.0 t/ha) while Khair has minimum (51.93 t/ha). In India , miscellaneous forests are spread over an area of 40.7316 million ha , and their soils have maximum SOC store (6469.80 million tonnes) while in Hollong forest with an area of 0.0068 million ha , soils have the least SOC store (0.82 million million tonnes). Among the Indian States , Arunachal Pradesh has maximum SOC store (1702.08 million tonnes) while Dadra&Nagar Haveli has minimum (2.42 million tonnes) SOC store. Arunachal Pradesh ranks first in India having 248.11 t/ha SOC store in the soils of the State. Soil conservation practices should be strengthened to conserve these natural resources so that carbon store may not deplete especially from hilly terrain.
- Vertwillium Wilt of Polyalthia longifolia - a New Disease Report from India
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Indian Forester, Vol 136, No 3 (2010), Pagination: 388-392Abstract
Verticillium dahliae was identified as a pathogen causing wilt disease of Polyalthia longifolia. It was isolated from the infected ischolar_mains of the seedlings collected from Central Forest Nursery of Imphal, Manipur, India. Four fungicides viz. Bavistin 50% WP, Dithane M-45, Dithane Z-78 and Fytolan 50% WP were screened against the pathogen at different concentrations using poison food technique in vitro and then in field-conditions using soil drenching technique. The results revealed that Bavistin 50% WP was most effective at 75 ppm with 100% growth inhibition followed by Dithane M-45, Dithane Z-78 and minimum efficacy was observed by Fytolan 50% WP with 31.27% growth inhibition in laboratory conditions. All selected fungicides were evaluated against pathogen in field conditions at 0.1% and 0.2 % concentrations. Bavistin 50% WP was found to be the most effective at 0.2% concentration. Thus the present study recommends soil drenching with Bavistin 50% WP at aminimal concentration of 0.2% for management of the disease.Keywords
Verticillium dahliae, Wilt, Polyalthia Longifolia, Disease Management- Syzygium cumini Shelterbelt - Effect on Crop Yields
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Indian Forester, Vol 123, No 5 (1997), Pagination: 405-411Abstract
A study was conducted to investigate the influence of 25 year old Syzygium cumini shelterbelt grown on north-south direction in single row on the growth and yield of Sorghum vulgare cultivated for fodder on western side of the belt. The results of the study show that mean green fodder yield, plant density and crop height were numerically lowest by 56.72 percent, 73.48 percent and 36.54 percent, respectively upto 5 m from tree belt as compared to the farthest plots located at 20.5 m distance in the open (control). Numerically higher values from these crop parameters were noted at later distances upto 8 m and beyond this uniform pattern'of growth and yield of S. vulgare was found. Therefore, it can be generalized that the impact oftree belt on Sorghum crop can be experienced upto 5 m, there is little impact upto 8 m distance and almost no impact beyond 8 m. The economic losses in green fodder yield in the affected area (220 m2) works out to 198.55 kg per 55 m tree line (one sided) are well compensated by the sale of timber harvested time to time by the farmer.- An Empirical Study of Moisture Content Behaviour in Acacia and Eucalyptus Plants
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Indian Forester, Vol 119, No 6 (1993), Pagination: 446-450Abstract
The moisture content in green plants is a highly variable character over the seasons. The seasonality of moisture content can be studied applying the technique of time-series analysis. In the present study an attempt has been made to analyse the moisture content behaviour statistically in different plant parts of Acacia and Eucalyplus grown under potculture conditions.- Twig Blight Disease of Croton tiglium Caused by Colletotrichum dematium
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Indian Forester, Vol 118, No 7 (1992), Pagination: 509-510Abstract
No abstract- Addition to the Flora of Upper Gangetic Plain: Status of Solanum villosum Mill. a New Record from Bareilly, Uttar Pradesh
Abstract Views :379 |
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1 Department of Botany, Taxonomy and Herbarium Division, Bareilly College Bareilly (U.P.) - 243001, IN
2 Climate Change and Influence Division, Forest Research Institute, P. O. New Forest, Dehradun – 248006, IN
1 Department of Botany, Taxonomy and Herbarium Division, Bareilly College Bareilly (U.P.) - 243001, IN
2 Climate Change and Influence Division, Forest Research Institute, P. O. New Forest, Dehradun – 248006, IN
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Indian Forester, Vol 139, No 11 (2013), Pagination: 1052-1053Abstract
No AbstractReferences
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- Kumar, R. (2011). Taxonomic and Ecological studies in Angiospermic Diversity of district Bareilly, Uttar Pradesh. India. Ph. D. thesis, M.J.P.R.University, Bareilly, Uttar Pradesh, India.
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- Schilling, E.E. (1978). A systematic study of the Solanum nigrum complex in North America. Ph. D. Thesis, Indiana University, Bloomington, USA.
- Seymour, F.C. (1982). The flora of New England. Charles E. Tuttle Company, Rutland.
- Singh, V.P. and Paliwal, N.K. (1982). A contribution to angiospermic flora of Moradabad District, Uttar Pradesh (India). Journal of Economic and Taxonomic Botany, 3(3):851- 861.
- Wunderlin, R.P. and Hansen, B.F. (2002). Atlas of Florida vascular plants. University of South Florida, Tampa.
- Wunderlin, R.P. (1998). The guide to the vascular plants of Florida. University Presses of Florida, Gainesville.
- Nutritive Value and Cultivation of Pleurotus pulmonarius an Edible Mushroom from Nagaland, India
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Affiliations
1 Rain Forest Research Institute, Jorhat, Assam, IN
1 Rain Forest Research Institute, Jorhat, Assam, IN