- Working as Professor ( Forestry) at Dr YS Parmar University of Horticulture and Forestry, Nauni Solan, Himalayas Prde... moreWorking as Professor ( Forestry) at Dr YS Parmar University of Horticulture and Forestry, Nauni Solan, Himalayas Prdesh. Work includes teaching, research and Extension in the field of forestry, Forest Products Ehnobotany, Biodiversity, Wood Sciences, Medicinal and aromatic plats. Also guiding students at MSc and PhD level(Working as Professor ( Forestry) at Dr YS Parmar University of Horticulture and Forestry, Nauni Solan, Himalayas Prdesh. Work includes teaching, research and Extension in the field of forestry, Forest Products Ehnobotany, Biodiversity, Wood Sciences, Medicinal and aromatic plats. Also guiding students at MSc and PhD level)edit
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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... 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.
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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... 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.
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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,... 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.
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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... 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.
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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... 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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Progeny trial of Pinus roxburghi i was conducted to evaluate the oleoresin yielding potential of half-sib progenies of chirpine. Trees of 60 progenies were enumerated and abstracted for diameter at breast height (d.b.h). The progenies... more
Progeny trial of Pinus roxburghi i was conducted to evaluate the oleoresin yielding potential of half-sib progenies of chirpine. Trees of 60 progenies were enumerated and abstracted for diameter at breast height (d.b.h). The progenies having more than 30 cm d.b.h were selected for oleoresin tapping experiment. In total, 22 out of 60 progenies had minimum one tree above 30 cm d.b.h in at least two replications. Hence, these progenies were selected for stem oleoresin tapping. The maximum value of oleoresin yield was noted in Kopra-P5 (1527.5 g/season) and lowest oleoresin yield was found in Chretmansu-P4 (455.0 g/season). The highest percentage of turpentine content (25.05%) was found in Jubble Green Centre and lowest value of 18.19 per cent was obtained for Bagthan-PT- Black Base. Maximum percentage of rosin was observed in (80.06%) Bagthan-PT Black Base. The highest value of (80.25°C) melting point of rosin was noted in Kaldoo P10 and lowest melting point (68.25°C) was observed for Jubble Green Centre.
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Swertia is an important genus used in Indian medicine. A comprehensive review on this genus is presented in this article.
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Field trials were conducted to study the effect of different propagation and planting techniques on the performance of Picrorhiza kurroa at Medicinal and Aromatic Plants Research Station, Rahla of Dr YS Parmar University, Solan, India,... more
Field trials were conducted to study the effect of different propagation and planting techniques on the performance of Picrorhiza kurroa at Medicinal and Aromatic Plants Research Station, Rahla of Dr YS Parmar University, Solan, India, during 2005–06 and 2006–07. After two year's observations it was concluded that for vegetative propagation of Picrorhiza kurroa, 6 cm stolon cutting taken from top portion gave maximum sprouting and survival whereas, maximum rootstock yield was obtained with 10 cm stolon cuttings taken from middle portion of the plant. The stolon cuttings should be planted horizontally at 7.5 cm depth with the spacing of 30x30 cm to get maximum rootstock yield/ha.
Research Interests: Mathematics, Horticulture, Cutting, Rootstock, Sowing, and 2 moreSprouting and Hill agriculture(Sprouting and Hill agriculture)
(Sprouting and Hill agriculture)
Research Interests: Botany, Plant Biology, Biology, In Vitro, Explant Culture, and 4 moreRhizome, Callus, Shoot, and Podophyllotoxin
The investigations were carried out on collations of the herb made from natural habitats with altitudes ranging from 1500 m to 2700m. the material was subjected to chemical screening which revealed a great deal of variation ranging from... more
The investigations were carried out on collations of the herb made from natural habitats with altitudes ranging from 1500 m to 2700m. the material was subjected to chemical screening which revealed a great deal of variation ranging from 0.75 percent to 1.14 per cent wit respect to bitter content which is a pharmaceutically important component of this plant. Besides this observations were also recorded on the effect of root length and root thickness on the yield of bitter principles, observations recorded on soil parameters did not reveal any significant effect on the bitter content production except soil pH.
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The present paper attempts to enlist the lesser-known aromatic plant species of the tribal district Kinnaur of Western Himalayas in India. A total of 30 aromatic plant species belonging to 29 genera under 13 families were collected and... more
The present paper attempts to enlist the lesser-known aromatic plant species of the tribal district Kinnaur of Western Himalayas in India. A total of 30 aromatic plant species belonging to 29 genera under 13 families were collected and identified from the study area. These plant species are highlighted along with their botanical name, family, local/common name(s), official part(s) and their uses.
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The present investigation entitled “Forecasting of resin yield and number of blazes of naturally regenerated chir pine (Pinus roxburghii Sargent) in Himachal Pradesh by using single exponential smoothing method” was carried out during the... more
The present investigation entitled “Forecasting of resin yield and number of blazes of naturally regenerated chir pine (Pinus roxburghii Sargent) in Himachal Pradesh by using single exponential smoothing method” was carried out during the year 2020-2022. The secondary information was collected regarding the resin yield and number of resin blazes w.e.f. 2005 to 2022 from Himachal Pradesh State Forest Department. Exponential smoothing is a particular moving average technique applied to time series data and to produce smoothed data to make forecast. In exponential smoothing, one or more smoothing parameters are to be determined explicitly and those choices determine the weights assigned to the observations. Forecasting with the help of various linear and non-linear models is on the assumption that the series is stationary. Often time series is found to be non-stationary which means they are integrated and can be made stationary by differencing the time series. To check the stationarit...
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The present study was conducted to determine the specific gravity of wood of Quercus leucotrichophora, procured from the live trees having diameter at breast height (d.b.h) ranged from 25cm to 30cm of different provenances in Himachal... more
The present study was conducted to determine the specific gravity of wood of Quercus leucotrichophora, procured from the live trees having diameter at breast height (d.b.h) ranged from 25cm to 30cm of different provenances in Himachal Pradesh. Specific gravity of wood is a measure of the amount of structural material a tree species allocates to provide support and strength. It is the most important wood characteristic because its knowledge allows the prediction of greater number of properties than any other trait. In recent years, wood specific gravity has become more important when exploring the universality of functional traits of plants and estimating their global carbon stocks.To estimate the specific gravity, banoak wood samples were collected from a total of 22 provenances in Himachal Pradesh, India. Variation in specific gravity was recorded both in sap wood and heart wood portion of studied banoak trees. The sapwood specific gravity was 7 per cent less than the heartwood spe...
The present studies were conducted on effect of phyto-chemicals extracts on Pinus roxburghii wood dimensional stability. The data on swelling, shrinkage in different planes, and per cent variation for weight were show significant... more
The present studies were conducted on effect of phyto-chemicals extracts on Pinus roxburghii wood dimensional stability. The data on swelling, shrinkage in different planes, and per cent variation for weight were show significant variation. Among the concentrations, Maximum value for swelling in all planes was found for radial plane (5.16%) for concentration (0.25%) and minimum was found in longitudinal plane for 1.50% concentration (0.28) but non significant. Among the extraction maximum swelling in all planes was recorded in redial planes (5.08) for Parthenium hysterophorus treated wood sample and minimum was found in longitudinal plane (0.28) for P. hysterophorus treated wood sample. Among the solvent used for extraction maximum swelling value (5.05) was recorded for radial plane, the wood samples treated with petroleum ether extract and minimum was observed in the longitudinal planes (0.28) wood samples treated with methanol. Among the concentrations, Maximum value shrinkage in ...
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Oenothera biennis L. (family Onagraceae), a native north American species, commonly known as evening primrose as the flowers open in the evening, king’s cureall and night willow herb etc. Evening primrose is important because of its seeds... more
Oenothera biennis L. (family Onagraceae), a native north American species, commonly known as evening primrose as the flowers open in the evening, king’s cureall and night willow herb etc. Evening primrose is important because of its seeds oil i.e. evening primrose oil (EPO) (Hall et al., 1988), which characterized by its content of gamma linolenic acid (7-10%) (GLA), the precursor of prostaglandin E1 and its derivatives (Hudson, 1984 and Yunusova et al., 2007). The oil is used in preparation of medicines, nutrients, health products and cosmetics (Deng et al., 2001). It is used for a wide range of conditions including premenstrual syndrome (PMS), mastalgia, atopic eczema, rheumatoid International Journal of Current Microbiology and Applied Sciences ISSN: 2319-7706 Volume 8 Number 10 (2019) Journal homepage: http://www.ijcmas.com
Wood is being a biological asset for timber purpose, liable to degrade easily than other material products. For its protection and longevity, chemical preservative industries are using chemicals and fixatives for their treatment under... more
Wood is being a biological asset for timber purpose, liable to degrade easily than other material products. For its protection and longevity, chemical preservative industries are using chemicals and fixatives for their treatment under pressure. Mostly chemical used in wood preservative industries are heavy metals (Chromium) and have harmful impacts. AS chromate-production workers are exposed to a variety of chromium compounds, including hexavalent (VI) and trivalent (III) compounds. According to US ATSDR 2000 report, about 52% of all chromium compounds used in the U.S. chemical industries was used in the production of wood preservatives; the rest were used about 7-13% in pigments, tanning metals, leather finishing, etc. Environmental exposure from chromium (VI) compounds is difficult to quantify. The chromium (VI) compounds in the environment may be reduced to chromium (III) compounds, but hexavalent forms can persist under some conditions. People who live near industrial facilities...
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Wood is most preferred structural material throughout the world and is considered as a complex biological composite with ubiquitous nature. Throughout the world there is an immense pressure on primary durable timbers due to their ever... more
Wood is most preferred structural material throughout the world and is considered as a complex biological composite with ubiquitous nature. Throughout the world there is an immense pressure on primary durable timbers due to their ever increasing demand. To reduce pressure on the primary species like; Teak, Sal and Deodar etc. one has to look for the other lesser known or secondary species as an alternative. Durability of these species can be enhanced with application of different preservatives and for this one of the best approach is to use herbal based ecofriendly preservatives rather than hazardous chemicals. In this study, the antifungal activity of Acorus calamus rhizome extract was tested on less durable local wood species. The results showed that average growth of Polyporus fungus on taken wood samples were retarded up to 69.44% after applying 2% concentration of rhizome extract and act as suitable bio-preservative for non durable wood species.
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The present research entitled Variation in physico-mechanical properties of market samples of Shisham wood (Dalbergia sissoo Roxb. ex DC.) was carried out in the Laboratory and Wood Workshop in the Department of Forest Products, College... more
The present research entitled Variation in physico-mechanical properties of market samples of Shisham wood (Dalbergia sissoo Roxb. ex DC.) was carried out in the Laboratory and Wood Workshop in the Department of Forest Products, College of Forestry, Dr. Y S Parmar
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.
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.