Academic literature on the topic 'Darjeeling foothills'

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Journal articles on the topic "Darjeeling foothills"

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Devi, Moonmee, and Debjyoti Bhattacharyya. "Rediscovery of the red-listed grass Isachne dimyloides (Poaceae: Micrairoideae) 130 years after type collection." Phytotaxa 221, no. 1 (July 28, 2015): 93. http://dx.doi.org/10.11646/phytotaxa.221.1.11.

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This paper reports rediscovery of a rare grass Isachne dimyloides after a gap of 130 years since its type collection. The type locality of the species is the Darjeeling district of West Bengal, India and the collection was made by C.B. Clarke in the year 1884. The present collection was made in 2012 from Cachar district of Assam (India) which also indicates its geographic range extension from the Darjeeling foothills to the Assam floodplain. In this paper a description of the species, a key, and an illustration are provided to facilitate identification. Priority conservation is highly recommended for this rare species.
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Ghosh, P., A. Mandal, Madhumita Chakraborty, P. Chakraborty, MG Rasul, and A. Saha. "Triterpenoids from Schleichera oleosa of Darjeeling foothills and their antimicrobial activity." Indian Journal of Pharmaceutical Sciences 73, no. 2 (2011): 231. http://dx.doi.org/10.4103/0250-474x.91568.

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Chamling, Novin, Nilesh Bhowmick, Binayak Chakraborty, Abhas Kr Sinha, Puspendu Dutta, and Somnath Mandal. "Ameliorative Role of Boron on Morpho-physiological Characters of Mandarin Orange Seedlings under Aluminium Stress Condition." International Journal of Plant & Soil Science 35, no. 19 (September 9, 2023): 1830–39. http://dx.doi.org/10.9734/ijpss/2023/v35i193734.

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Darjeeling mandarin orange is well known for its unique and delicious taste. It is also considered as one of the major cash crop of Darjeeling hills. But in recent past, the production has been declined drastically due to some of the biotic and abiotic factors. Acidic soils are mainly confined in this region which has a complex interaction of growth limiting factors that can restricts growth by inducing stress on plants through triggering aluminium stress and micronutrient Deficiency. This has resulted in declination in production and quality of mandarin orange grown in foothills of Darjeeling. Since boron is known to act as ameliorative role under aluminium toxicity, the present study was investigated to understand the effect of boron in mandarin orange seedlings grown under aluminium stress condition. Seedlings of Darjeeling mandarin orange were fertilized with Hoagland solution containing four levels of boron (i.e, 0µM, 5µM, 10µM and 25µM H3BO3) and two level of Aluminium (i.e., 0µM and 1200µM AlCl3.6 H2O) up to 22 weeks. Seedlings without boron and aluminium was treated as the control. Aluminium at higher concentration severely hinder physiological changes in terms of shoot length, leave numbers, leaf area, fresh shoot, root weight, chlorophyll content and carotenoid of mandarin seedlings. However, the application of boron improved the physiological attributes under higher concentration of aluminium. Furthermore, application of boron concentration at 10µM proved to be better treatment for mandarin seedlings grown under aluminium stress condition.
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Chowdhury, Monoranjan, Aratrik Pal, Sujit Mondal, Payel Paul, Mridushree Basak, Deepika Chhetri, and Roshni Chowdhury. "Conservation of germplasm and role of Centre for Conservation & Utilization of Medicinal and Aromatic Plant of NBU, West Bengal, India." NBU Journal of Plant Sciences 11, no. 1 (2019): 32–84. http://dx.doi.org/10.55734/nbujps.2019.v11i01.004.

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Centre for Conservation & Utilization of Medicinal and Aromatic Plant is one of important Herbal garden in India and is located within the campus of University of North Bengal at the foothills of Darjeeling District, West Bengal. Present this ex-situ conservatories houses a total of 729 species of vascular plants belonging to 477 genera and 153 families. Several endemic and threatened species are growing in this garden. The garden is very good store house of various medicinal and aromatic plants and also involve in active research activity.
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Prasad, M., A. K. Kannaujia, Alok, and Sanjai Kumar Singh. "Plant megaflora from the Siwalik (Upper Miocene) of Darjeeling District, West Bengal, India and its palaeoclimatic and phytogeographic significance." Journal of Palaeosciences 64, no. (1-2) (December 31, 2015): 13–94. http://dx.doi.org/10.54991/jop.2015.103.

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Qualitative and quantitative analysis of fossil assemblage so far collected from the Middle Siwalik sediments of Darjeeling District, West Bengal revealed the occurrence of 35 new taxa belonging to 18 angiospermous families. On the basis of present data as well as already known data from there, the reconstruction of vegetation scenarios of Himalayan foothills during Siwalik time has been done. We also discussed problems related to plant diversity, endemism, and migratory pathways of mainly phytogeographically important taxa. The analysis of present day distribution of all the recovered taxa from the region shows that they are mostly known to occur in Northeast India, Bangladesh, Myanmar and the Malayan region where the climatic conditions are favourable. About 1/3 taxa of total assemblage are found to grow presently in the Himalayan foothills of the eastern region and the remaining 2/3 taxa are locally extinct. This indicates that the climatic changes must have taken place after Mio–Pliocene. The dominance of evergreen elements in present fossil assemblage indicates the prevalence of tropical warm humid climate with plenty of rainfall during the deposition of sediments. Foliar physiognomic approach for reconstruction of palaeoclimate further suggests that the Oodlabari area in the Himalayan foothills of West Bengal enjoyed a tropical climate (with MAT 28.9º C and MAP 448 mm) during the Miocene Period. This is, however, contrary to the present day climate of the area with reduced precipitation. On the basis of the present fossil assemblage, the coexistence intervals of different climatic parameters, i.e. Mean Annual Temperature (MAT), Warmest Month Temperature (WMT), Coldest Month Temperature (CMT), and Mean Annual Precipitation (MAP) have been estimated as 22º C–26.5º C, 17.8º C–20º C, 25º C–30º C, and 2650–3200 mm, respectively. However, Leaf Margin Analysis (LMA) suggests the MAT value as 28.9º C for the area during Upper Miocene.
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More, Sandip, Dipak Kumar Paruya, Suchana Taral, Tapan Chakraborty, and Subir Bera. "Depositional Environment of Mio-Pliocene Siwalik Sedimentary Strata from the Darjeeling Himalayan Foothills, India: A Palynological Approach." PLOS ONE 11, no. 3 (March 1, 2016): e0150168. http://dx.doi.org/10.1371/journal.pone.0150168.

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Chaudhuri, Adwitiya. "Delineating species boundary through DNA barcodes ofsome fishes inhabiting river Murti in the foothills of Darjeeling Himalayas." International Journal of Advanced Research in Biological Sciences (IJARBS) 9, no. 9 (September 30, 2022): 1–16. http://dx.doi.org/10.22192/ijarbs.2022.09.09.001.

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The aim of the present study was to establish a global bioidentification system in the form of a reference sequencelibrary where fish species inhabiting river Murti were delineated by a particular sequence denoted as genetic‘barcode’.40 species representing 27 genera, 16 families and 5 orders were collected along different altitudinal gradients if river Murti. Mitochondrial DNA was isolated from the samples followed by amplification of COI gene, alignment by CLUSTAL W and submission to GenBank. The average nucleotide frequencies were calculated whereall the fishes showed relatively higher GC content at second codon position. Haplotypes showed gradually decreasinggenetic distance within orders, families, genera with very low genetic distance within species indicating markedgenetic divergence beyond species boundaries. The average transitional pairs were found more frequent than averagetransversional pairs. The Neighbour Joining tree revealed distinct clusters formed by members of order Cypriniformes, Siluriformes, Perciformes, Synbranchiformes and Beloniformes, where the conspecific individualswere always found to cluster under the same node supported by high bootstrap value, while dissimilar species wereclustered under separate nodes, ensuring unambiguous identification of species. The research work suggests that COI barcoding can be taken up as a sensible approach to eliminate obscurity in the identification of the fish fauna withapplications in its management and conservation of the species inhabiting in specific microhabitats. Keywords: COI gene, DNA Barcode, sequence library, unambiguous identification, conservation.
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De, Damayanti, Ananda Mukhopadhyay, and Ranadhir Chakraborty. "A novel bacterial pathogen (Enterobacter sp.) isolated from the leaf roller, Caloptilia theivora of tea of Darjeeling foothills." World Journal of Microbiology and Biotechnology 24, no. 11 (May 1, 2008): 2727–29. http://dx.doi.org/10.1007/s11274-008-9760-0.

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Mahato, S., and M. A. Khan. "The First Fossil Record of Coryphoid Palm from Siwalik Strata (Middle Miocene) of Darjeeling Foothills of Eastern Himalaya." Paleontological Journal 57, S3 (December 2023): S268—S284. http://dx.doi.org/10.1134/s003103012360004x.

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Mukhopadhyay, Ananda, and Damayanti De. "Pathogenecity of a baculovirus isolated from Arctornis submarginata (Walker) (Lepidoptera:Lymantriidae), a potential pest of tea growing in the Darjeeling foothills of India." Journal of Invertebrate Pathology 100, no. 1 (January 2009): 57–60. http://dx.doi.org/10.1016/j.jip.2008.08.006.

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Dissertations / Theses on the topic "Darjeeling foothills"

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Khewa, Subba Sangita. "Survey, isolation and characterization of entomopathogenic bacteria of some sporadic lepidopteran pests of tea foliage from Darjeeling foothills and plains." Thesis, University of North Bengal, 2017. http://hdl.handle.net/123456789/2701.

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Biswa, Ritesh. "Study on termites of tea plantations in terai region of Darjeeling foothills with insecticide tolerance status of two commonly occurring termite pests." Thesis, University of North Bengal, 2018. http://hdl.handle.net/123456789/2723.

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Ghosh, Bappaditya. "Genetic Characterization of Nucleopolyhedrovirus Isolated from Hyposidra talaca Walker (Lepidoptera: Geometridae), a Tea Pest in Terai Region of Darjeeling Foothills, India." Thesis, University of North Bengal, 2022. http://ir.nbu.ac.in/handle/123456789/5086.

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Basnet, Kumar. "Enzyme-based detection of pesticide tolerance in the sucking tea pest, helopeltis theivora waterhouse (insecta: heteroptera: miridae) with a study on bio-ecological aspects of its common spider predator from the terai tea plantations of Darjeeling foothills and plains." Thesis, University of North Bengal, 2017. http://hdl.handle.net/123456789/2626.

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Roy, Rudra Prasad. "Investigation of pathogenic bacteria of a resident fish, Lepidocephalichthys guntea (Hamilton Buchanan), in relation to limnochemistry of a Terai river Lotchka in the Darjeeling foothills of West Bengal, India." Thesis, University of North Bengal, 2014. http://hdl.handle.net/123456789/975.

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Sarker, Mayukh. "A Study on certain hydrolases and oxidoreductases of major arthropod pests of tea from Darjeeling foothill and its adjoining plain." Thesis, University of North Bengal, 2007. http://hdl.handle.net/123456789/1080.

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Books on the topic "Darjeeling foothills"

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Ghosh, Deepak Kr. Flora of Darjeeling Himalayas and foothills: Angiosperms. Dehra Dun, India: Research Circle, Forest Directorate, Government of West Bengal & Bishen Singh Mahendra Pal Singh, 2014.

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