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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: Environmental Science × Author: CHAUHAN, SHARMILA × End date: 2019 × Start date: 2013 × Type: Thesis × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    IN VITRO STUDIES ON IMPACT OF CADMIUM AND NICKEL ON GENERATIONS OF TOBACCO CATERPILLAR (Spodoptera litura Fab.)
    (2013) CHAUHAN, SHARMILA; VERMA, S.C.
    ABSTRACT The present investigations entitled “In vitro Studies on Impact of Cadmium and Nickel on Generations of Tobacco Caterpillar (Spodoptera litura Fab.)” was carried out during 2012-2013 in the Department of Environmental Science, Dr. Y. S. Parmar University of Horticulture and Forestry, Nauni, Solan. The main aim of this investigation was to find out the impact of heavy metals viz., Cd and Ni on generations of Tobacco Caterpillar (Spodoptera litura F.). Among all the treatments,maximum fecundity (766.56 eggs/ female), fertility (85.25% ), incubation period(3 days), larval period (17.06 days),pupal period (8.56 days), total developmental period(28.72 days), third instar larval survival was 100 per cent whereas sixth instar larval survival was 73.20 per cent, pupation (100%, adult emergence (97.78%), adult male longevity ( 8.78 days) ,adult female longevity (5.33 days), growth rate (GR) for second instar was 0.105 and increased to 0.814 in sixth instar, consumption index (CI) for second instar was 0.396 and increased to 2.055 for sixth instar, approximate digestibility(AD) for second instar was 71.62 per cent and decreased to 27.74 pe cent in sixth instar, efficiency of conversion of ingested food (ECI) for second instar was 36.32 per cent and decreased to 17.66 per cent for sixth instar, efficiency of conversion digested food (ECD) for second instar 51.66 per cent and increased to 68.29 per cent for sixth instar was recorded with artificial diet impregnated with 1 mg Cd/kg while 1 mg Ni/kg registered 767.22 eggs/ female, fertility (85.57% ), incubation period (3days), larval period(17.04 days), pupal period (8.56 days), total developmental period (28.70 days), third instar larval survival was 100per cent and sixth instar larval survival was 75.07per cent, pupation (100%), adult emergence (97.78%), adult male longevity ( 8.78 days) ,adult female longevity (5.67 days), GR for second instar was 0.106 and in sixth instar increased to 0.815, CI for second instar was 0.400 and for sixth instar increased to 2.061, AD for second was 71.53 per cent and decreased to 27.81 per cent for sixth instar, ECI for second instar was 36.36 per cent and for sixth instar decreased to17.59 per cent, ECD for second instar was 51.69 per cent was increased to 68.41per cent for sixth instar. Artifical diet treated with 40 mg Cd/kg resulted minimum fecundity (466 eggs/ female), fertility (72.53), incubation period (3.94 days), larval period(23.39 days), pupal period(6.44 days), total developmental period (33.97days), third instar larval survival 75 per cent whereas for sixth instar larval survival was 33.33 per cent, pupation (64.44%), adult emergence (63.89%), adult male longevity ( 5.33 days), adult female longevity (3.67 days) , GR for second instar was 0.130 and increased to 0.714 for sixth instar, CI for second instar was 0.204 and increased to 1.179 in sixth instar, AD for second instar was 65.75 and decreased to 24.50 per cent in sixth instar, ECI for second instar was 32.98 and decreased to13.74 per cent in sixth instar, ECD for second instar was 46.15 and increased to 55.65 per cent in sixth instar. Artifical diet treated with 40 mg Ni/kg resulted minimum fecundity (472.56 eggs/ female), fertility (73.12%), incubation period (4 days), larval period (23.05days), pupal period (6.67 days), total developmental period (33.64 days), third instar larval survival was 80 per cent whereas sixth instar larval survival was 33.33 per cent, pupation (71.11%), adult emergence (67.59%), adult male longevity ( 5.67 days), adult female longevity (4.0 days) , GR for second instar was 0.131 and increased to 0.722 in sixth instar, CI for second instar was 0.212 and increased to1.188 in sixth instar, AD for second instar was 66.06 and decreased to 24.93 per cent in sixth instar, ECI for second instar was 33.23 and decreased to 14.11 per cent in sixth instar, ECD for second instar was 46.75 and increased to 56.52 per cent in sixth instar. Hence, it can be concluded that growth and development of S. litura F was dose dependent. The higher doses of cadmium and nickel in the artificial diet increased generation time, whereas, lower doses shortened the generation time. So accumulation of cadmium and nickel in agroecosystem might influence the growth and development of Spodoptera litura F. through host plants to some extent.