R. S. Chauhan
Uttarakhand University of Hort..., Pauri

Agronomy, Analytical Chemistry, Pharmacology

Ph. D
20.81

Publications

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    ABSTRACT: Medicinal and aromatic plants (MAPs) are vital substrate for human health. Commercialization of MAPs threatened their status in natural habi tat including Himal ayan regi onand conservati on along with sustainable use of such resources is a chal lenge. To overcome this challenge in situ and ex situ conservation techniques are underway. Establishment of gene banks is an eff ective techni que to conserve such important MAPs. Therefore, a f ield gene bank establi shed to conserve temperate MAPs in Bharsar, Pauri Garhwal, Uttarakhand. We could conserve >50 speci es here, many of them belongs to RET categori es. The germplasm conserved here is being used f or characterization and f ormulations of crop descri ptors especi ally in RETspecies. Potential species f or i ncome generation are bei ng multipli ed for large scale cul ti vation and i nf ormati on are being col lected for rapi d multi plicati on behavi or, seed maturation time, harvesting period, germination behavior. Such gene bank wi ll be helpf ul to conserve threatened MAPs diversity of the regi on, awareness among the peoples, and augment the supply of quali ty planting material of potential species to interested growers. [M edi cinal Plants 2014; 6(4) : 282-292] K eywor ds : Fiel d gene banks, MAPs, popul ati on decrease, Red Data Book, RET speci es
    Full-text · Article · Jan 2015 · Medicinal Plants - International Journal of Phytomedicines and Related Industries
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    A.S. Bisht · R.S. Chauhan
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    ABSTRACT: This review deals with the different phyto-chemical activities of Acorus calamus alongwith propagation technique for mass multiplication. It is believed to stimulate the power of intelligence and self-expression i n humans. It is used in Indian system of traditional medicine in various Ayurvedic formulations. It is widely used in the pharmaceutical and biotechnological sector due to great potency to improve immune system. Acorus possesses anti-inflammatory, anti-spasmodic, anti-protective and anti-hepatotoxic activities. Therefore species has been recommended for in-situ as well as ex-situ conservation devising appropriate management plans.
    Full-text · Article · Dec 2014 · Medicinal Plants - International Journal of Phytomedicines and Related Industries

  • No preview · Article · Sep 2014 · Medicinal Plants - International Journal of Phytomedicines and Related Industries
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    Rajendra S. Chauhan · M. C. Nautiyal · Aldo Tava
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    ABSTRACT: Selinum vaginatum C.B. Clarke. (Apiaceae) was collected from two distant populations of north-west Himalaya, India. Underground parts were subjected to hydro distillation in a Clevenger-type apparatus and 0.24-0.27 % essential oil could collect. Twenty eight constituent from the volatile part was identified with GC-FID and GC-MS analysis. Great variations exist in qualitative and quantitative parameters of the essential oil. The study revealed that only nine constituents were common to both populations. Bornyl acetate was major constituents (31-51 %) of the essential oil in both the populations. Second major constituent was α-pinene from Rhohtang whereas β-phellandrene was second major constituents from Tungnath. Existing variations in the essential oil composition may be attributed to environmental factors as well genetic makeup. Such variations are important for assessment of genetic variability and crop improvement program of species.
    Full-text · Article · Sep 2014 · Journal of essential oil-bearing plants JEOP
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    R. S. Chauhan
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    ABSTRACT: Population survey was carried out on few medicinal and aromatic plant species (MAPs) in their natural habitats in western Himalaya, India. Vegetation sampling was conducted through vertical belt transect method in the areas of occurrence of the selected species using quadrat method. Anthropogenic factors e.g. grazing and destructive harvesting are major threat for population reduction in most of the selected species in study sites. Factors responsible for population reduction and methods for their conservation were discussed. Such rare, endangered and threatened MAPs should be conserved through both in situ and ex situ methods.
    Full-text · Article · Jun 2014 · Journal of Medicinal Plants
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    R.S. Chauhan · M.C. Nautiyal · A. Tava · R. Cecotti
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    ABSTRACT: Heracleum candicans Wall. (Apiaceae) is an important endangered aromatic species, exploited commercially with a destructive harvesting system from its natural habitat. We cultivated a wild strain of H. candicans, harvested leaves for extraction of essential oil and analyzed them. Twenty-eight compounds were identified from essential oil using gas chromatography–flame ionization detection (GC–FID) and GC–mass spectrometry (GC–MS) analysis. These compounds are very useful for the pharmaceutical, flavor and fragrance industries. Harvesting of the leaves for the production of essential oil is a sustainable method compared with uprooting plants. Being a perennial species, leaves can be harvested every year, as the aerial parts of the plant regenerate easily and farmers need not worry about planting every year.
    Full-text · Article · Mar 2014 · Journal of Essential Oil Research
  • Rajendra S. Chauhan · Dinesh Tiwari · K. D. Sharma · A. Shukla · Matthew Prasad

    No preview · Conference Paper · Mar 2014
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    R S Chauhan · M C Nautiyal · R K Vashistha · P Prasad

    Full-text · Dataset · Feb 2014
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    R S Chauhan · M C Nautiyal · R K Vashistha · P Prasad

    Full-text · Dataset · Feb 2014
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    Dataset: 3
    R S Chauhan · M C Nautiyal · R K Vashistha · P Prasad

    Full-text · Dataset · Feb 2014
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    R S Chauhan · M C Nautiyal · R K Vashistha · P Prasad

    Full-text · Dataset · Feb 2014
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    R S Chauhan · M C Nautiyal · R K Vashistha · P Prasad
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    ABSTRACT: Dactylorhiza hatagirea (D. Don) Soo (Orchidaceae) is an important endangered medicinal herb, distributed in subalpine to alpine regions of the Himalayas. Its tubers are important constituents of many medicines and health tonics. Overexploitation for medicinal uses has decreased availability in natural habitats and this species has been enlisted as endangered, making conservation and cultivation studies necessary. Variability studies may serve as an important tool for effective conservation and for a crop improvement program. Therefore, natural populations of D. hatagirea were analyzed for variability on the basis of morphological, biochemical, and isoenzyme patterns. The studied populations were grouped into two clusters. Existing variability among different populations opens up new areas for conservation and perspectives for a genetic improvement program for D. hatagirea.
    Full-text · Dataset · Jan 2014
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    Anand Singh Bisht · Rajendra S. Chauhan · Dinesh Tiwari · A.S. Bisht · A. Shukla
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    ABSTRACT: Medicinal and aromatic plants (MAPs) are vital substrate for human health. Commercialization of MAPs threatened their status in natural habitat including Himalayan regionand conservation along with sustainable use of such resources is a challenge. To overcome this challenge in situ and ex situ conservation techniques are underway. Establishment of gene banks is an effective technique to conserve such important MAPs. Therefore, a field gene bank established to conserve temperate MAPs in Bharsar, Pauri Garhwal, Uttarakhand. We could conserve >50 species here, many of them belongs to RET categories. The germplasm conserved here is being used for characterization and formulations of crop descriptors especially in RETspecies. Potential species for income generation are being multiplied for large scale cultivation and information are being collected for rapid multiplication behavior, seed maturation time, harvesting period, germination behavior. Such gene bank will be helpful to conserve threatened MAPs diversity of the region, awareness among the peoples, and augment the supply of quality planting material of potential species to interested growers. [Medicinal Plants 2014; 6(4) : 282-292]
    Full-text · Article · Jan 2014
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    Full-text · Dataset · Apr 2013
  • R. S. Chauhan · Prabhu Dutt
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    ABSTRACT: Medicinal properties of mangiferin, amaroswerin and amarogentin are well documented in literature, Swertia chirayita is main source of these compounds. However, scarcity of Swertia chirayita in natural habitat, it becomes necessary to identify new sources of these compounds. Samples of Swertia ciliata were collected from Gulaba (9000 ft), Himachal Pradesh, India, and analyzed for the presence of bioactive compounds. Presence of C-glucoxanthone mangiferin along with bitter secoiridoid glucosides (amaroswerin and amarogentin) increased importance of S. ciliata and open new avenues for further investigations. Thus S. ciliata may be used as a source of mangiferin, amaroswerin and amarogentin for medicinal exploitation.
    No preview · Article · Apr 2013
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    R.S. Chauhan · M.C. Nautiyal · Aldo Tava
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    ABSTRACT: Uttarakhand has been declared ‘Herbal State’, but herbal wealth of this state could not be utilized properly due to lack of chemical characterization of most of the vegetational wealth. Mentha spicata L. (spearmint) was collected from naturally growing population of Uttarakhand (3800 ft). GC-MS analysis reveals details of 94.0 % of essential oil. Carvone was major part (57.1 %) whereas other components were limonene (10.1 %), cis-dihydrocarvone (3.2 %), dihydrocarveol (3.2 %).
    Full-text · Article · Mar 2013 · Journal of essential oil-bearing plants JEOP

  • No preview · Article · Jan 2013

  • No preview · Article · Jan 2013
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    R S Chauhan · B P Nautiyal · M C Nautiyal
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    ABSTRACT: This is a research/review paper, distributed under the terms of the Creative Commons Attribution-Noncommercial 3.0 Unported License http://creativecommons.org/licenses/by-nc/3.0/), permitting all non-commercial use, distribution, and reproduction inany medium, provided the original work is properly cited. Abstract -Collection and trade of medicinal and aromatic plant species (MAPs) is age old practice throughout the world to increase household income. Over harvesting decreased their populations and a number of species became threatened in natural habitat. Survey was conducted on trade of such threatened MAPs from wild in Garhwal Himalaya (Uttarakhand), India. Information's were collected on MAPs trade, channels involved and profit at each level of transaction. Even after ban on commercial exploitation of some MAPs, trade continued through illegal ways. Harvesting starts from July and continue till November. Further, harvesting prior to seed dispersal decreased chance of recruitment of new individual, due to which abundance of these species is decreasing with alarming rate. Abstract -Collection and trade of medicinal and aromatic plant species (MAPs) is age old practice throughout the world to increase household income. Over harvesting decreased their populations and a number of species became threatened in natural habitat. Survey was conducted on trade of such threatened MAPs from wild in Garhwal Himalaya (Uttarakhand), India. Information's were collected on MAPs trade, channels involved and profit at each level of transaction. Even after ban on commercial exploitation of some MAPs, trade continued through illegal ways. Harvesting starts from July and continue till November. Further, harvesting prior to seed dispersal decreased chance of recruitment of new individual, due to which abundance of these species is decreasing with alarming rate. Total eighteen species are in active trade from study areas, out of which five are common for all sites. Number of MAPs traded from each site directly influenced by abundance of species in natural habitat. 18% of annual cash income generated from MAPs related activities in these areas. Market demand for Aconitum heterophyllum, Nardostachys jatamansi and Picrorhiza kurrooa is much higher than supply. Percentage of profit varied at each level from site to site and species. Traders earned maximum percentage of profits whereas collectors also received good profit, due to which they were engaged in illegal trade. Rotational harvesting may be applied for sustainable utilization. Agrotechnology has been developed for few MAPs, but incentive should be given to farmers to initiate cultivation of such species for ex situ conservation. channels, rotational harvest, sustainable utilization.
    Full-text · Article · Jan 2013
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    V. K. Purohit · Y.M. Bahuguna · D. Tewari · A. Tewari · H. C. Andola · J. S. Negi and R.S. Chauhan

    Full-text · Article · Jan 2013 · Current science

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