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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.

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20131
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Subject: Genetics and Plant Breeding × Author: CHAUHAN, KANICA × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    STUDIES ON WOOD CHARACTERISTICS USING Melia azedarach L. FRUIT EXTRACT AS A BIOPRESERVATIVE
    (2013) CHAUHAN, KANICA; SHARMA, K.R.
    ABSTRACT The present research entitled “Studies on wood characteristics using Melia azedarach L. fruits extract as a biopreservative” was carried out in the Department of Forest Products, Nauni, Solan (H.P.) and also in the Laboratory of Fruit Pathology in the Department of Mycology and Plant Pathology, Dr. Y S Parmar University of Horticulture and Forestry, Nauni, Solan (HP). Wood samples of Pinus roxburghii Sargent, Celtis australis L., and Bombax ceiba L. of size 5cm x 2.5cm x 2.5cm +.25cm x .15cm x .15cm ( longitudinally x radially x tangentially ) were got prepared. The wood specimens of Pinus roxburghii Sargent, Celtis australis L., and Bombax ceiba L. were dipped in 0.25, 0.5, 1.0, 1.5 and 2.0 per cent (w/v) Melia azedarach L. fruits extract solution for 72 hours. These were analyzed for variation in specific gravity, per cent weight gain of treated and untreated wood on dry weight basis (Swelling), Per cent weight gain of treated and untreated wood on wet weight basis (Shrinkage), weight gain, volumetric swelling coefficient, volumetric shrinkage coefficient, Swelling and Shrinkage of wood in three different planes, Chromium absorption, Chromium leaching, chromium retention and per cent fungus growth and per cent fungal inhibition. The maximum (0.570) value for specific gravity was recorded in Celtis australis L. and minimum (0.420) in Bombax ceiba L. Swelling and shrinkage of wood were recorded maximum in Pinus roxburghii Sargent in radial and tangential plane, while in longitudinal plane, maximum was recorded in Bombax ceiba L.The minimum swelling and shrinkage were recorded in Bombax ceiba L. in radial and tangential plane while, in longitudinal plane, minimum was recorded in Pinus roxburghii Sargent. Maximum volumetric swelling coefficient was recorded in Pinus roxburghii Sargent at 1.50 per cent concentration and minimum in Celtis australis L. at 2.00 per cent concentration. The highest volumetric shrinkage coefficient was recorded in Pinus roxburghii Sargent in control while the lowest in Bombax ceiba L. at 0.25 per cent concentration. The maximum per cent variation of treated and untreated wood on dry and wet weight basis had been recorded in Bombax ceiba L. and minimum in Celtis australis L. Maximum value for chromium absorption, leaching and retention were found at 10 per cent chromic acid concentration and minimum at 5 per cent concentration. The maximum (100%) fungus colonization was recorded in control for all the species. The minimum (38.33%) fungus colonization was recorded in Bombax ceiba L. at 2.00 per cent concentration. Highest (61.67%) fungus growth inhibition was recorded for Bombax ceiba L. at 2.00 per cent concentration and the lowest for control in all the species.