Loading...
Dr. Y. S. Parmar University of Horticulture & Forestry, Solan
Dr. Yashwant Singh Parmar University of Horticulture and Forestry, Solan, was established on 1st December, 1985 with the objective to promote education, research and extension education in the fields of Horticulture, Forestry and allied disciplines. Late Dr. Yashwant Singh Parmar, the first Chief Minister and the architect of Himachal Pradesh perceived the importance of Horticulture and Forestry to develop and improve the State economy which led to the establishment of this University. Its history lies in erstwhile Himachal Agricultural College, Solan, established in 1962 and affiliated to the Panjab University. It became one of the campuses of Agriculture Complex of Himachal Pradesh University on its formation in 1970. Consequent upon the establishment of Himachal Pradesh Krishi Vishvavidyalaya in 1978, this campus became its Horticulture Complex and finally in 1985, assumed the status of a State University, being the only University in the country engaged exclusively in teaching, research and extension in Horticulture and Forestry.
The University is located at Nauni in Solan District of Himachal Pradesh, 13 km from Solan on Solan-Rajgarh Road, at an elevation of 1300 metres above mean sea level. Solan town is situated on national highway (NH-22) and is well connected by train and bus services.
The University has four constituent colleges, out of which, two are located at the main campus Nauni, one for horticulture and the other for forestry, having 9 and 7 departments, respectively. The third College i.e., College of Horticulture & Forestry is located at Neri in Hamirpur District on Nadaun-Hamirpur state highway, about 6 Km from Hamirpur town and is well connected with bus service. The college offers three Undergraduate Degree Programmes i.e. BSc (Hons.) Horticulture, BSc (Hons.) Forestry and B. Tech. Biotechnology and MSc degree programme in a few subjects. The fourth college i.e. College of Horticulture and Forestry, Thunag (Mandi) is located at Thunag District Mandi. This college offer BSc (Hons.) Horticulture and BSc (Hons.) Forestry degree programme. In addition, there are five Regional Research Stations, 12 Satellite Stations and five Krishi Vigyan Kendras (KVKs) situated in different zones of the State.
Browse
6 results
Search Results
ThesisItem Open Access STUDIES ON MORPHO-CHEMICAL VARIATION IN GYNODIOECIOUS Valeriana jatamansi JONES(UHF,NAUNI, 2017-12) THAKUR, PANCY; SHARMA, YASH PALABSTRACT The present investigation entitled “Studies on morpho-chemical variation in gynodioecious Valeriana jatamansi Jones” was carried out in the field and laboratory of the Department of Forest Products, College of Forestry, Dr. Y S Parmar University of Horticulture and Forestry, Nauni, Solan (H.P.) during 2014-16. The study was conducted under five broad heads namely (i) Morphological features and isolation of morphovariants, (ii) Stability of morphological features of morpho-variants, (iii) Evaluation of different morphovariants for phytochemical content and yield, (iv) Progeny evaluation of female & and bisexual plants, and (v) Standardization of analytical method for quantification of valepotriates. Already existing plants of different germplasms i.e. IVth inbred generation of INGR 11036 (IC 05844665), IVth inbred generation of “A” germplasm and general plants of different populations of Valeriana jatamansi were utilized for the present study. Wide variation in the plants for plant habit, leaf characteristics and floral parameters was observed. Detailed morphological studies resulted in identification of 46 morpho-variants differing in atleast one distinct qualitative morphological feature. Out of 46 selected morpho-variants, 25 morpho-variants were female flowering plants and 21 morpho-variants were bisexual flowering plants. The distinct qualitative morphological features of morpho-variants were found stable in the vegetatively raised offsprings of all the morpho-variants. Significant variation was recorded among the morpho-variants with regard to leaf length, leaf width, ratio of leaf length and leaf width, plant height, petiole length, petiole diameter, rhizome diameter, fresh & dry aerial biomass, fresh & dry rootstock biomass and flowering initiation. Among female and bisexual morpho-variants, significant difference was observed for plant height, leaf width, petiole diameter and fresh and dry biomass of rhizomes. Phytochemical analysis revealed wide variation in concentration of valepotriate’s (valtrate, acevaltrate, Didrovaltrate & IVHD Valtrate) in roots, rhizomes & rootstocks of different morpho-variants. The valtrate content varied from 0.749% to 2.878% in rhizomes, 0.917% to 5.221% in roots and 0.927% to 3.267% in rootstock; acevaltrate content varied from 0.022% to 0.512% in rhizomes, 0.015% to 1.647% in roots and 0.260% to 0.909% in rootstock; didrovaltrate content varied from 0.187% to 1.688% in rhizomes, 0.053% to 0.365% in roots and 0.136% to 0.958% in rootstock; IVHD valtrate content varied from 0.179% to 1.491% in rhizomes, 0.176% to 0.755% in roots and 0.214% to 1.101% in rootstock of different morpho-variants. The total valepotriate’s content varied between 1.761% to 4.848% in rhizomes, 1.598% to 6.420% in roots and 1.845% to 4.875% in rootstock of different morpho-variants. The concentration of diene type of valepotriate’s was more in roots than rhizomes and monoene type of valepotriate’s were more in rhizomes than roots. On the basis of phytochemical content and morphological studies, promising morpho-variants has been identified which can be further used for breeding purpose for isolation of chemotype/variety with stable and distinct morphological features. Seasonal variation studies indicated that during September month, valepotriates content was maximum but due to higher rootstock biomass, valepotriate’s yield was maximum in November month. Analytical method for quantification of individual valepotriate’s through HPLC has been standardized and developed.ThesisItem Open Access STUDIES ON Pinus roxburghii Sargent WOOD CHARACTERISTICS USING PLANT EXTRACTS AS BIOPRESERVATIVES(UHF,NAUNI, 2017-11) MEENA, RAJESH KUMAR; DUTT, BHUPENDERABSTRACT The present investigations entitled “Studies on Pinus roxburghii Sargent wood characteristics using plant extracts as biopreservatives” was carried out in the Department of Forest Products, College of Forestry, UHF, Nauni, Solan (H P). The wood samples of Pinus roxburghii Sargent of 5cm x 2.5cm x 2.5cm (longitudinal x radial x tangential) dimensions were prepared and dipped in 0.25per cent, 0.5 per cent, 1 per cent, 1.5 per cent and 2 per cent (w/v) plant extracts of Acorus calamus L. and Parthenium hysterophorus L. for 72 hours. These plant extracts were extracted by using two solvents viz., petroleum ether and methanol solutions. The wood samples were analysed for variation of specific gravity, swelling and shrinkage of wood in three different planes viz., longitudinal, radial and tangential, per cent weight gain of treated and untreated wood on dry weight basis, per cent weight gain of treated and untreated wood on wet weight basis, weight percentage gain, volumetric swelling coefficient, volumetric shrinkage coefficient, anti-swelling efficiency, anti-shrinkage efficiency, chromium absorption, chromium leaching, chromium retention, variation in treated and untreated wood after chromium absorption on dry weight basis (swelling) and wet weight basis (shrinkage), variation in treated and untreated wood after chromium leaching on dry weight basis (Swelling) and wet weight basis (Shrinkage), in vitro mycelial growth of namely Trametes versicolor L. and Gloeophyllum striatum (Fr.) Murrill per cent fungal growth on plant extracts and chromium treated wood samples, per cent fungal inhibition by plant extracts and chromium treated wood samples, decay test for two months and three months, chemical properties of wood after decay test and qualitative and quantitative enzyme assays. The maximum value of specific gravity was recorded at 0.25 per cent concentration. The maximum swelling and shrinkage was recorded in tangential plane followed by radial and longitudinal planes. The highest volumetric swelling was observed for Parthenium hysterophorus L. at T5 (2.00%) and shrinkage coefficient was also recorded for the Parthenium hysterophorus L. at 0.25 per cent concentration. Per cent variation in weight of treated and untreated wood on dry weight basis (swelling) and wet weight basis (shrinkage) were found to be maximum for Acorus calamus L. The treated samples have shown improved antiswelling and anti-shrinkage efficiency over untreated samples. The extract treated wood samples have shown an increased dimensional stability over untreated samples. With increase in plant extract concentration the maximum chromium retention in wood was recorded in treated wood samples and minimum was found at untreated wood samples. Maximum chromium retention was recorded for Acorus calamus L. treated samples with petroleum ether extract. Maximum chromium retention was noticed at 2.00 per cent concentration. Per cent weight highest swelling was observed for the Acorus calamus L. and maximum swelling was recorded at 0.50 per cent concentration and minimum was at 2.00 per cent concentration and highest shrinkage after Chromium absorption was observed in Acorus calamus L. treated wood samples maximum was noticed at 0.25 and 1.50 per cent and minimum was at 2.00 per cent. The treated wood samples have shown more fixation of chromium trioxide than untreated samples. The maximum fungus colonization was observed in untreated samples. The decay test upto three months showed more weight loss than two months. The treatment of samples at higher concentrations with methanol extract was found to be effective in protection against the fungal degradation. Parthenium hysterophorus L. extract was found more effective against the wood degrading fungi as compare to the Acorus calamus L. extract Quantitative and qualitative analysis indicated that the both fungi were able to produce cellulase and xylanase enzymes showing its capability of degrading the wood. The treated wood samples showed higher water soluble extractives, lignin and holocelluloses content than untreated wood samples.ThesisItem Open Access VARIATION IN PHYSICO-MECHANICAL PROPERTIES OF MARKET SAMPLES OF Acacia nilotica (L.) Willd ex DELILE WOOD(UHF,NAUNI, 2017-09) THAKUR, PRIYADARSHINI; SHARMA, KULWANT RAIABSTRACT The present research investigation entitled “Variation in physico-mechanical properties of market samples of Acacia nilotica (L.) Willd ex Delile wood” was carried out in the department of Forest Products, College of Forestry, Dr Y S Parmar university of Horticulture and Forestry, Nauni, Solan (HP) during the years 2015-16 and 2016-17.The identification and authentication of the samples were carried out. The maximum vessel diameter of (0.158mm) was recorded in samples from Parwanoo-K whereas minimum value was recorded in Chowkiwala (0.127mm). In the cross sectional studies mostly vasicentric and occasionally aliform type of parenchymatous tissues has been observed. Medium sized and thicker fibers were observed in the radial sections of wood, whereas gum ducts were present in most of the longitudinal sections of wood. Fine texture and light to moderate reddish brown colour has been observed in most of the samples collected from different locations. The physical properties were estimated using several parameters under consideration. The highest moisture content (28.033%) noticed in Parwanoo-1 location, while the lowest moisture content in Datowal (8.559%). The MMC (%) was found to be highest (107.719%) in Nalagarh-2 location and lowest (59.255%) in Baddi. The maximum specific gravity (0.802) was recorded in Baddi and minimum (0.585) from Nalagarh- 2.The maximum fibre length (1.320 mm) was recorded in Jhadhmajri and minimum (0.668 mm) from Barotiwala. The maximum fiber diameter of (0.0248 mm) was recorded in Baddi and minimum value of (0.0219 mm) in samples from Jhadhmajri. The mechanical strength properties were determined on UTN-10 (Universal Testing Machine) by following standard procedures. The tensile strength and elongation in tension was observed maximum in samples collected from Chowkiwala and Parwanoo-2, respectively. The maximum compressive strength perpendicular to grain was recorded in Parwanoo-1 market samples. The wood samples collected from Baddi market have shown maximum compressive strength parallel to grain, modulus of elasticity parallel to grain, bending modulus of elasticity and elongation in bending The maximum bending strength and bending modulus of rupture was observed in teak (control) followed by samples from Baddi market whereas, the highest modulus of elasticity in tension was recorded in teak (control) followed by Barotiwala market samples. Out of total 105 combinations, of simple correlation coefficients obtained between physical and mechanical parameters 13 were found to be significant and positive whereas, 7 were reported as negatively correlated and significant. R2 value for specific gravity has been noticed to be highest due to different mechanical-physical parameters under study.ThesisItem Open Access VARIATION IN PHYSICO-MECHANICAL PROPERTIES OF MARKET SAMPLES OF SHISHAM WOOD (Dalbergia sissoo Roxb. ex DC.)(UHF,NAUNI, 2017) SUNNY, PAVIN PRAIZE; DUTT, BHUPENDERDr. Bhupender Dutt ABSTRACT 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.ThesisItem Open Access STUDIES ON THE COMPARATIVE EVALUATION OF DIFFERENT EXTRACTION METHODS AND STANDARDIZATION OF HPLC CONDITIONS FOR ESTIMATION OF ACTIVE CONTENTS IN SOME COMMERCIALLY IMPORTANT MEDICINAL PLANTS(UHF,NAUNI, 2017) SHARMA, SEEMA; SHARMA, YASH PALABSTRACT The present investigation, “Studies on the comparative evaluation of different extraction methods and standardization of HPLC conditions for estimation of active contents in some commercially important medicinal plants” was carried out in the department of Forest Products, Dr Y S Parmar University of Horticulture and Forestry, Nauni, Solan, (H.P.) during 2013-2016. The study was conducted on five important medicinal crops viz., Swertia chirayita, Podophyllum hexandrum, Picrorhiza kurroa, Gloriosa superba and Andrographis paniculata with the objectives as (i.) Standardization of extraction technique, (ii.) Development and validation of HPLC method for quantification of active phytoconstituent(s). For standardization of extraction technique in each crop five different extraction methods viz., soxhlet extraction, reflux extraction, cold extraction, sonication assisted extraction and microwave assisted extraction were used with two different solvents. The extracting solvents and extraction durations vary with conditions. In Swertia chirayita maximum amaroswerin (0.242%) and amarogentin (0.294%) content with higher total extract (17.756%) were obtained under soxhlet extraction for eight hours with methanol solvent. In Podophyllum hexandrum, reflux extraction for four hours with methanol solvent is the best extraction method for extraction of maximum (5.794%) podophyllotoxin content with higher total extract (38.826%). Cold extraction with continous shaking at room temperature with methanol for twelve hours is the best extraction method for extraction of maximum picroside-I (8.600%) and picroside-II (3.834%) with total extract (39.430%) in Picrorhiza kurroa. In Gloriosa superba, maximum colchicine content and total extract was obtained under soxhlet extraction for one hour with methanol solvent or reflux extraction with ethyl alcohol for one hour. For Andrographis paniculata, reflux extraction for one hour with methanol solvent has been found best extraction method for obtaining maximum (2.040%) andrographolide content with total extract (15.111%). Simple and easy to handle HPLC methods were developed and validated for quantification of major phytoconstituents in medicinal crops under study. Each method was validated as per ICH guidelines for seven parameters viz., linearity, range, accuracy, precision, LOD, LOQ and robustness.ThesisItem Open Access STUDIES ON MORPHOLOGICAL, ESSENTIAL OIL AND MOLECULAR DIVERSITY IN Tagetes minuta L. IN HIMACHAL PRADESH(UHF,NAUNI, 2017) BANDANA, KUMARI; RAINA, RAVINDERABSTRACT The present investigation entitled “Studies on morphological, essential oil and molecular diversity in Tagetes minuta L. in Himachal Pradesh” was carried out both in field as well as in laboratory of the Department of Forest Products, College of Forestry, Dr. Y S Parmar University of Horticulture and Forestry, Nauni, Solan (H.P.) during 2014-17. These studies were divided into six experiments namely (i) Morphological studies (qualitative as well as quantitative) (ii) Interpopulation growth and development studies (iii) Breeding & Genetic System studies,(iv) Growth and Development studies, (v) Seed studies and (vi) Genetic variability studies through DNA based molecular markers. The seed was sourced from 32 different agroclimatic regions of Himachal Pradesh. All the accessions were deposited with NBPGR, New Delhi and IC numbers (IC 617291-617300 and IC 614570-614591) obtained. All the accessions were found to be same for qualitative morphological parameters. Significant variation was obtained for many quantitative characters. Maximum plant height of 191.78 cm in accession 8, maximum collar diameter of 15.26 mm in accession 21, the number of main branches per plant maximum in accession 27(7.42), leaf length highest in accession 31(19.79 cm),maximum number of leaflets in accession 12(12.55) was observed on the basis of pooled data of two years. Maximum gland density in accession 28 (1.34 mm-2), number of ray and disc florets highest in accession 7(2.81 and 4.50), size of disc floret ovary maximum in accession 21(5.21mm), disc floret ligule size maximum in accession 25 (4.07mm), ray floret ovary size maximum in accession 11 and size of ray floret ligule maximum in accession 25(3.97mm) was observed. As both the leaf and flower oil cannot be harvested at the same stage due to different growth stages, the biomass and oil yield parameters were taken at both preflowering (leaves being in full flush) and full flowering stage. Significant variation was observed for biomass and oil yield parameters among the studied accessions. On the basis of maximum biomass and yield parameters, five accessions were identified: i) Accession 6(highest in flower oil yield), ii)Accession 9(highest in leaf biomass and leaf oil yield), iii)Accession 10(highest in flower biomass yield) iv)Accession 30(highest in leaf and flower oil content) v) Accession 32(highest in leaf oil yield). These accessions were subjected to chemical characterization through GC-MS analysis and considerable variation was observed between and within leaves and flowers oils. Clustering based on morphological and yield parameters showed interesting results of grouping accession 6&9 in same cluster and accession 10, 30 & 32 in other same cluster. Highest heritability was observed for number of leaflets per leaf (96.49%) followed by leaf length (90.68%). Considerable variation in the biomass and oil content was observed between different months suggesting July being the best month for leaf oil harvesting and September for flower oil harvesting. Breeding system studies indicated the self pollinating nature of Tagetes minuta in addition to cross pollinating feature of the plant. The genetic system studies confirmed the earlier reports of 2n = 48 chromosomes. Seed studies showed significant variation for all the germination parameters with accession 9 standing the highest for germination percentage (93.33%), germination energy index (81.11%), speed of germination (16.59%) and peak value (11.42%). On the basis of ISSR marker analysis, the studied accessions broadly clustered into two main groups with one group consisting of accessions 6, 7, 8 and 9 and other group consisting of remaining 28. Three accession 1, 23 and 26 are genetically identical. ISSR-(GA) 8WC with PIC value of 0.72 is more suitable for genetic analysis in this species.