Papers by dr Bhupender Dutt
International journal of plant and soil science, Apr 18, 2024
The experiment was conducted to determine the effect of different growing media on seed germinati... more The experiment was conducted to determine the effect of different growing media on seed germination and growth parameters of Murraya koenigii (L.
International Journal of Research in Dermatology, Nov 23, 2017
importance are the Anacardiaceae (i.e., the cashew or sumac family) and Compositae. Of these, mor... more importance are the Anacardiaceae (i.e., the cashew or sumac family) and Compositae. Of these, more than 200 species are important causes of contact dermatitis, worldwide. The Anacardiaceae family is a very broad ABSTRACT Background: Phytodermatitis refers to inflammation of the skin caused by a plant. The clinical patterns of dermatitis due to plants can present as allergic phytodermatitis, photophytodermatitis, irritant contact dermatitis or in the form of mechanical injury. The commonest plant causing allergic contact dermatitis in India is Parthenium hysterophorus, followed by other plants. Phytodermatitis due to Toxicodendron succedaneum is not uncommon in sub Himalayan range of North India and it has variable clinical presentation. The aim of the study was to study and evaluate the patients of allergic contact dermatitis due to T. succedaneum. Methods: All patients having allergic contact dermatitis due to T. succedaneum from August 2015 to July 2016 were enrolled for the study. Results: Our study included 13 (76.4%) males and 4 (23.5%) females with a mean age of 32 years. 76.4% patients developed lesions within 24-48 hours after contact with plant, 17.6% after 48 hours and 5.8% developed in less than 24 hours. Most of the (88.2%) patients presented with disseminated lesions and 11.7% had localised lesions involving only hands and forearms. Urticaria (41.1% ) was the commonest finding followed by papuloplaque lesions (in 29.4% patients), further followed by erythema multiforme like lesions (in 11.7% patients) and maculopapular, vesiculobullous lesions and angiodema (in 5.8% of each patients). Patch test was positive in 16 (94.1%) cases. Majority of patients required systemic steroids to settle the dermatitis. Conclusions: Allergic contact dermatitis due to T. succedaneum is very common in this region. Although it presents with widespread clinical presentations but adequate literature was not found on this plant. This plant further requires more study to know the dermatitis caused by it.
International journal of advanced biochemistry research, 2024
Heat treatment of wood is an effective and eco-friendly approach to increase the durability as we... more Heat treatment of wood is an effective and eco-friendly approach to increase the durability as well as dimensional stability of the wood. It involves the treatment of wood with high temperatures in controlled conditions. In the present investigation, heat treatment of wood samples was carried out at 80, 120, 160 and 200 °C for 2,4 and 6 hours in a stability oven supplied with vacuum conditions. The study revealed significant variation among the physical properties of thermally modified wood of Acrocarpus fraxinifolius Wight & Arn. The highest value of specific gravity 0.538 was noticed at 200 °C (6h) and maximum moisture content (181.04%) was recorded in control, whereas the lowest value for specific gravity 0.400 in control and maximum moisture content (120.86%) at 200 °C (6h) were recorded. The colour of the wood became darker while no significant differences were observed in the texture of the wood. Shrinkage and swelling coefficients decreased with an increase in temperature ranges thus ultimately enhancing the dimensional stability of the wood.
International journal of Bio-resource and stress management/International journal of bio-resource and stress management, Mar 24, 2024
Thermal modification was performed on the samples of Salix tetrasperma at various temperatures 60... more Thermal modification was performed on the samples of Salix tetrasperma at various temperatures 60, 80, 100, 120, 140, 160 and 200°C for 2, 4 and 6 h under stability oven, to asses its impact on wood dimensional stability. The data pertaining on maximum moisture content, swelling coefficient and shrinkage coefficient shows significant variation. The maximum moisture content at different temperature treatment, was recorded to be maximum (192.03%) in control and minimum (140.09%) at 200°C, whereas for durations the maximum moisture content (164.77%) was observed at 2 h while minimum (161.77%) at 6 h. Among interactions, the maximum value (192.03%) was observed in control and minimum (139.42%) was found at 200°C (6 h). In volumetric swelling and shrinkage coefficient, maximum values (8.03%) and (7.42%) among temperatures were found in control and minimum values (3.85%) and (3.42%) were observed at 200°C (6 h). Among durations, the highest values (5.94%) and (5.73%) were found at 2 h and the lowest values (5.60%) and (5.50%) were observed at 6h. The interactions in volumetric swelling coefficient showed significant results and the highest value (8.03%) was noticed in control and the lowest value (3.74%) at 200°C (6 h), However, interactions in volumetric shrinkage coefficient were found to be non-significant. This indicated that after thermal treatment, wood becomes less hygroscopic and exhibits less wear and tear, even in a harsh environment.
International journal of economic plants, May 15, 2023
The increasing human population and continuous demands of timber and its derived products like co... more The increasing human population and continuous demands of timber and its derived products like composite wood, has created a significant pressure on the demand for high quality timber from forests. This, ultimately has resulted in pressurising the natural forests and increase in the unvailibility of the production of high quality or durable timber from the forests. The one way to neutralize this pressure on the forests is to modify the other non durable wood species having undesirable properties like hygroscopicity, anisotropy, dimensional instability and biodegradability. Treatment with neem extracts as a biopreservative proves to be very efficient to protect the wood from bacterial or fungal rots. In the present study, wood specimens of Toona ciliata M. Roem. were treated with neem leaf and seed extracts for 72 hours in concentrations of 0.25, 0.5, 1, 1.5 and 2% (w/v), and analyzed for fungal growth and inhibition on dry weight basis using Polyporous rubidus. The fungal growth was maximum in untreated (control) samples whereas, minimum growth was observed in the neem leaf and seed extracts with 2.00% concentration. This method comes to be one of the most eco-friendly processes of wood preservation and helps in utilization of Toon wood in more effective and sustainable way. Also, the minimal release of harmful chemicals in the environment, helps to widen the industrial applications of Toona ciliata wood and make its acceptance to the society with ease.
Bioresources, Sep 28, 2023
Thermal treatment of pine wood was carried out at 80, 120, 160, and 200 °C for 2, 4, and 6 hours.... more Thermal treatment of pine wood was carried out at 80, 120, 160, and 200 °C for 2, 4, and 6 hours. The highest mean values were, for specific gravity (0.492), moisture content (29.1%), and maximum moisture content (191%), whereas the lowest mean values were for specific gravity (0.418), moisture content (1.20%), and maximum moisture content (127%). The maximum mean values were for shrinkage in longitudinal plane (0.42%), radial plane (4.63%), volumetric shrinkage (9.28%), and maximum mean value tangential plane (3.67%). The minimum mean values were for shrinkage in longitudinal plane (0.04%), radial plane (2.22%), tangential plane (1.55%), and volumetric shrinkage (4.88%). Maximum mean values were for swelling in longitudinal (0.41%), radial (5.22%), and tangential plane (3.15%) and maximum mean volumetric swelling (7.71%), while minimum mean values were for swelling in longitudinal plane (0.08%), radial plane (2.26%), and tangential plane (1.29%) and minimum mean volumetric swelling (3.15%). The highest mean values were for tensile strength (57.3 MPa) and compression parallel to the grain (50.3 MPa), the maximum mean value of bending strength (84 MPa) and compression strength perpendicular to grain (27 MPa), whereas the lowest values were for tensile strength (42.7 MPa), bending strength (7.33 MPa), compression parallel to the grain (7.33 MPa) and compression strength perpendicular to grain (12.3 MPa).
International journal of advanced biochemistry research, 2024
Heat treatment of wood is an effective and eco-friendly approach to increase the durability as we... more Heat treatment of wood is an effective and eco-friendly approach to increase the durability as well as dimensional stability of the wood. It involves the treatment of wood with high temperatures in controlled conditions. In the present investigation, heat treatment of wood samples was carried out at 80, 120, 160 and 200 °C for 2,4 and 6 hours in a stability oven supplied with vacuum conditions. The study revealed significant variation among the physical properties of thermally modified wood of Acrocarpus fraxinifolius Wight & Arn. The highest value of specific gravity 0.538 was noticed at 200 °C (6h) and maximum moisture content (181.04%) was recorded in control, whereas the lowest value for specific gravity 0.400 in control and maximum moisture content (120.86%) at 200 °C (6h) were recorded. The colour of the wood became darker while no significant differences were observed in the texture of the wood. Shrinkage and swelling coefficients decreased with an increase in temperature ranges thus ultimately enhancing the dimensional stability of the wood.
Journal of Non-Timber Forest Products
Research Square (Research Square), Apr 27, 2022
AimsRosmarinus officinalis (rosemary) is most extensively used culinary herbs rich in antioxidant... more AimsRosmarinus officinalis (rosemary) is most extensively used culinary herbs rich in antioxidants and several other secondary metabolites. Soil quality affects the biosynthesis of secondary metabolites thereby reducing their quality. An approach to improve soil quality and boosting plant productivity in a sustainable manner is the use of plant growth promoting (PGP) endophytic bacteria. Previously three endophytic bacteria associated with roots of R. officinalis were characterized for in vitro PGP traits. The purpose of this study was to assess (1) the compatibility of isolated potential indigenous endophytic bacteria for PGP traits to develop potential consortium biofertilizer, and (ii) how the coordinated interaction among these strains mediates the response for productivity and nutrient acquisition of R. officinalis.MethodsIn vitro synergistic interactions among isolated strains (Bacillus subtilis KU21, Pseudomonas aeruginosa SI12 and Cedecea lapagei KU14) were examined for multiple PGP traits. In vivo studies were carried out to assess synergistic effects of theses strains on productivity and soil quality of R. officinalis. ResultsThe consortia of strains exhibited higher production of IAA, siderophore and phosphorus solubilization. Further, assessment of consortia of these strains significantly improved rosemary growth parameters, nutrient acquisition and soil quality over single inoculation and uninoculated control. Conclusions This is the first field report that describes the efficacy of novel endophytic strains i.e., B. subtilis KU21+ C. lapagei KU14 for improving rosemary production and soil health simultaneously, may be recommended for sustainable production of R. officinalis in Northwest Himalayan region.
The Journal of Plant Science Research, Feb 10, 2023
In present article, authors have reviewed status of Indian medicinal plants in term of their anti... more In present article, authors have reviewed status of Indian medicinal plants in term of their antibacterial properties (2011-2020). This paper provides general information about names of plants, areas of collection, their family, parts used and solvents used during their extraction. An overview of bacterial strains, methods and standards used for antibacterial activity has also been discussed.
Apple Academic Press eBooks, Feb 27, 2022
International journal of chemical studies, 2021
Toona ciliata M. Roem belongs to family Meliaceae is one of the best known Indian timber species,... more Toona ciliata M. Roem belongs to family Meliaceae is one of the best known Indian timber species, popularly known as Toon and Red cedar. The aim of the study was to determined physico chemical characters of wood of Toona ciliata collected from three states. The moisture and maximum moisture content (%) and specific gravity were found to be significant variation in sapwood and heartwood of wood parameters. The variation in water and chemical (%) and Alcohol benzene soluble extractives was found characteristics wood samples. Variation in holocellulose and lignin content (%) was found significant variation in different provenances. The wood samples from Uttarakhand found better as per selected parameters in comparison to the chemical characters of wood from Himachal Pradesh and Uttar Pradesh. Conclusion: During this study it was observed the variability in physico chemical characteristics. The two provenances viz Naini and Nauni have been measured percent of holocellulose (74.50) and lignin (28.5) respectively under sharp focus for utilization and deployment for future improvement programme.
Ethnobotany Research and Applications, Oct 14, 2022
Background: To best of our knowledge it is first quantitative study of ethnoveterinary practices ... more Background: To best of our knowledge it is first quantitative study of ethnoveterinary practices from Spiti valley of Northwestern Himalayas. Spiti valley lies in cold arid zone of Himachal Pradesh and most of the high-altitude villages in this region remains cut off from rest of the world during a major part of the year (November-May). Methods: A total of 48 respondents, 45-80 years old and including farmers, shepherds, housewives and herbalists familiar with livestock problems and use of conventional recipes, were interviewed and their responses recorded in detail. The data was analyzed by using three different quantitative indices viz. Use value (UV), Informant consensus factor (ICF) and Fidelity level (FL %). Results: A total of 26 species were used in ethnoveterinary practices, distributed among 17 families and 25 genera. The UV was found to be highest in Brassica campestris (UV=0.95) followed by Lactuca macrorhiza (UV=0.62). The FL was found to be highest (100%) in Bunium persicum, Oxytropis lapponica, Sassurea bractaeta, Lactuca macrorhiza and Cousinia thomsonii for its use in treatment of diarrhea, dysentery, wound healing, neck sore, as a galactagogue and for the treatment of local swellings. Highest ICF was found in case of anestrus, animal bite followed by galactagogue. Conclusion: Study concluded that 26 plant species used in ethnoveterinary practices to cure the various ailments. Scientific validation of different plant species with high UV and FL should be conducted in future for the optimum utilization of these species in animal health care.
World journal of Pharmacy and pharmaceutical sciences, 2015
The Indian Forester, Aug 1, 2007
Containerized/Polybag raised seedlings were root pruned at 0, 5 and 10 cm length from collar regi... more Containerized/Polybag raised seedlings were root pruned at 0, 5 and 10 cm length from collar regions before planting and given split nitrogen doses of 0, 40, 80 and 120 kg/ha. These conditioned seedlings were studied for morphological, physiological, nutritional status and survival per cent. Root pruning significantly reduced seedling growth and biomass production in monsoon as well as winter planting. Severely pruned (5 cm from collar region) seedlings showed lesser growth and biomass production than light pruned ones (10 cm from collar region) in both planting season. Application of nitrogen up to 80 kg N/ha increased plant growth biomass. Root pruning coupled with nitrogen application improved the morphological attributes and was observed more in light pruned seedlings than severely pruned ones when 80 kg N/ha was applied. Root pruning decreased xylem water potential and root regeneration. Total soluble sugars, starch and carbohydrate content of the transplants increased with increase in severity of root pruning in monsoon planting season, whereas, in winter planting, these reserves increased with increase in root pruning length. Nutrient content and uptake were affected with root pruning length. Nitrogen application increased NPK content and their uptake in the seedlings. Application of 80 kg N/ha in 10 cm pruned seedlings increased the NPK content and their uptake in the seedlings. Survival per cent increased with nitrogen application upto 80 kg/ha and decreased with increase in root pruning severity. Light pruning (5 cm from collar region) with medium application of nitrogen improved the survival percent. In comparison to monsoon, winter transplanting had lower survival per cent in all the treatments.
Check List, Oct 1, 2014
and reported 1326 species of flowering plants belonging to 113 families. The exploration of flora... more and reported 1326 species of flowering plants belonging to 113 families. The exploration of floral resources holds importance; as otherwise unknown species may disappear without there ever having been knowledge of their existence (Singh and Minoo 2003). Subsequently, there is a vital need to identify our natural wealth, document it and raise awareness about its utility and the repercussions if it were to go to extinct. Therefore, it is essential to explore the currently little known microhabitats of Forest Divisions (FD), which represent the main unit in the hierarchy of forest departments for the management of forests in India. Hence, the present exploration for the inventory of plant species was conducted. The information can be used as a baseline by managers, conservationists and researchers for future studies. Materials and Methods Study area The Theog Forest Division, lies between 31°5′ N and 31°10′ N and 77°22.5′ E and 77°30′ E. The area is situated in the west of Shimla, the capital of Himachal Pradesh, located in Nnorthern India (Figure 1). The division is surrounded by Rohru Forest Division in the east, Shimla Forest Division in the west, Kotgarh Forest Division in the north, and Rajgarh and Chopal Forest Divisions in the south. The total geographical area of the division is 64,000 ha (ca. 512 km²), out of which 32,045 ha (50.07%) of the total geographical area is under tree cover. The entire tract is mountainous with moderate to steep slopes, which are at places precipitous, particularly in the northern and eastern aspects, namely Shali-Dhar and Chambi-Dhar, respectively. Elevation ranges from 1000-3160 m. The Narkanda-Kufri is the main ridge
Bioresources, May 17, 2023
Effects of thermal modification were determined relative to chemical parameters of Pinus roxburgh... more Effects of thermal modification were determined relative to chemical parameters of Pinus roxburghii. Thermal modification of wood was carried out at 80, 120, 160, and 200 °C for 2, 4, and 6 h. The chemical properties were different for different temperatures and different heating time. All parameters were similar except for cold water soluble extractives. Among the chemical properties studied, the maximum mean value of cold water extractives (8.20%), hot water soluble extractives (12.7%), holocellulose content (71.8%), and ash content (1.46%) were recorded at 120 °C, whereas the maximum mean values of alcohol benzene soluble extractives (13.9%) and lignin content (33.7%) were observed at 200 °C. The minimum mean value of cold water soluble extractives (5.82%), hot water soluble extractives (9.27%), holocellulose content (65.8%), and ash content (1.03%) were found to be at 200 °C, while the highest value of alcohol benzene soluble extractives 12.2% (control) and lignin content (28.0%) were found to be at 80 °C.
International journal of economic plants, Feb 28, 2018
Due to biological origin, wood is one of the most complex constructions materials and has affinit... more Due to biological origin, wood is one of the most complex constructions materials and has affinity for moisture which can lead to biological deterioration. Biological damage to wood and wood products is mainly caused by the mould, stain, decay fungi, and insects such as beetles and termites. Therefore, wood preservation is required after harvesting to reduce attack by wood deteriorating agents. Development of low environmental impact technologies for the elimination of biological damage is one of the vital goals of wood protection industry. In the present study, effect of Acorus calamus extract on fungal growth was tested on wooden samples of Pinus roxburghii and Bombax ceiba at different concentrations.
International journal of pure and applied bioscience, Aug 20, 2017
The wood rays are strips of short horizontal cells that extend in a radial direction and serve to... more The wood rays are strips of short horizontal cells that extend in a radial direction and serve to store food and distribute it horizontally. They are also responsible for the transfers of water, nutrients, and chemicals occuring up and down in a tree. The sap, containing water and nutrients, is transported horizontally to the cambium through structures called wood rays. The wood rays are more complex structures in hardwoods while, in softwoods usually uniseriate and fusiform rays are observed. The fusiform rays are complex structure, usually present in the resin yielding trees i.e. Conifers. The imperative taxonomic characteristic in conifers is resin ducts, which are enclosed in fusiform rays in tangential section of the wood specimen. Comparative studies on fusiform rays predicted variation in number as well as structure of fusiform rays in the studied coniferous species.
Journal of Non-timber Forest Products, Sep 1, 2007
A survey was carried out in the Sangla Valley of tribal District Kinnaur in Himachal Pradesh to c... more A survey was carried out in the Sangla Valley of tribal District Kinnaur in Himachal Pradesh to collect information on plants of religious beliefs. As a result of interaction with the local people the information on 8 plant species belonging to 7 genera from 7 families was collected. The present paper highlights the information on sacred plants.
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Papers by dr Bhupender Dutt
University of Horticulture and Forestry, Nauni, Solan (HP) during 2015-16 and 2016-17. The study revealed significant variation between physical and mechanical properties of wood of shisham woods collected from different market sites. The maximum moisture content of (20.170%) was
observed in the wood samples of Nalagarh site, highest maximum moisture content (68.326%) found in the samples from Nalagarh site. Highest specific gravity of (0.644) in Dattowal site and lowest in
Nalagarh site i.e., 0.7480. Maximum vessel diameter (0.126 mm), fibre diameter (0.020 mm) and fibre length (1.66 mm) was found in the wood samples from Ghumarwin, Dattowal and Ghumarwin site respectively. In case of mechanical properties of wood samples of Shisham, significant variation was observed for all the studied parameters. The maximum bending strength was recorded in Baroh and Sundernagar site (0.006 kN/mm2) and maximum tensile strength (0.094 kN/mm2) was noticed in the wood samples from Baroh site. The maximum compressive strength parallel to grain (0.069 kN/mm2) was observed in Kangu site and maximum compressive strength perpendicular to grain
(0.038 kN/mm2) was found in of Baroh site. The maximum modulus of elasticity parallel to grain (0.231 kN/mm2) was recorded in Ghumarwin and maximum modulus of elasticity perpendicular to
grain (1.653 kN/mm2) was noticed in wood samples of Galore site. The greater modulus of elasticity due to tension and bending are in the wood samples of the sites Baroh (2.876 kN/mm2) and Kangu
(10.369 kN/mm2) respectively. The maximum bending modulus of rupture was observed in the wood samples from the sites of Sundernagar (0.116 kN/mm2) and for Teak was found to be 0.323
kN/mm2. The maximum elongation for shisham wood samples for bending was found in Nalagarh site (0.039 mm) and for tension in the site of Sarahan (0.033 mm). Majority the mechanical
properties of Shisham wood were compared with standard Teak wood samples and found that the wood samples of Shisham were superior in some mechanical properties.