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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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Subject: Forestry × End date: 2009 × Start date: 2000 × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Studies on relationship between resin duct characteristics and oleoresin yield in Chirpine(Pinus roxburghii Sargent)
    (UHF,NAUNI,SOLAN, 2009) MEENA, DHARM SINGH; SHARMA, K.R.
    ABSTRACT The present investigation entitled, “Studies on relationship between resin duct characteristics and oleoresin yield in Chirpine (Pinus roxburghii Sargent)” was carried out in the laboratory of department of forest products and in the campus area of Dr Y. S. Parmar University of Horticulture and Forestry, Nauni, Solan- 173230 (H. P.) with the objectives to study the relationship between morphological parameters and resin duct characteristics with oleoresin yield. The trees were classified into three oleoresin yield classes i.e., high resin yielders (HRY’s), medium resin yielders (MRY’s) and low resin yielders (LRY’s). The oleoresin yield showed increasing trend with increase in diameter at breast height and number of bore holes. The maximum oleoresin yield (853 g/hole/tree) was obtained from first bore hole (B1) with 40-45 cm diameter class (D3). Higher oleoresin yielders were recorded in trees having dark green (136 A) needle colour, followed by green (137 B) needle colour. Trees with yellowish- green (145 A) needles gave lowest oleoresin yield. The needle thickness, needle length and bark thickness showed association with oleoresin yield. The average value for resin ducts parameters was recorded maximum in HRY’s and minimum in LRY’s. The number of vertical resin ducts/mm2 was found to be maximum in a HRY (R-93) and maximum value for diameter of vertical resin ducts was noticed in R-11 and R- 74, and minimum value of diameter in LRY’s marked as R-20 and R-58. The number of horizontal resin ducts/mm2 was maximum in a HRY (R-93) and the minimum numbers were observed in LRY’s (0.50). The maximum value for diameter of a horizontal resin duct (108 μm) was recorded in two high resin yielding trees (R-11 and R-93) and minimum value of diameter (54 μm) was noticed in LRY’s. To predict the oleoresin yield multiple component analysis was conducted and a regression equation was formulated, which indicated that six characters, viz. needle length, bark thickness, number of vertical resin ducts, diameter of vertical resin ducts, number of horizontal resin ducts and diameter of horizontal resin ducts, contribute maximum to the resin yield.