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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: Plant Pathology × Author: BHARDWAJ, AMBUJA × End date: 2012 × Start date: 2012 ×
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    ThesisItemOpen Access
    STUDIES ON BASELINE SENSITIVITY TO STEROL INHIBITOR AND STROBILURIN FUNGICIDES, AND MONITORING OF FUNGICIDE RESISTANCE IN Marssonina coronaria CAUSING PREMATURE LEAF FALL IN APPLE
    (2012) BHARDWAJ, AMBUJA; SHARMA, J.N.
    ABSTRACT Premature leaf fall is one of the most important diseases of apple particularly in Himachal Pradesh. Present studies were carried out with the objectives to establish baseline sensitivities of Marssonina coronaria to newly developed sterol inhibitor and strobilurin fungicides and to monitor the development of fungicide resistance in M. coronaria to some of the frequently used fungicides in apple orchards of Shimla district of Himachal Pradesh. The baseline sensitivities were established and observed in terms of mean EC50 values in vitro (spore germination in presence of different concentrations of test fungicides) against the wild isolate of M. coronaria. Baseline sensitivity of M. coronaria in terms of EC50 for flusilazole, hexaconazole and difenoconazole was 0.075, 0.027 and 0.031 mg/l, respectively. For strobilurin fungicides the mean EC50 value observed for azoxystrobin, kresoxim- methyl and pyraclostrobin were 0.053, 0.036 and 0.012 mg/l respectively. Five isolates from Shimla district in Himachal Pradesh (Theog, Kotgarh, Kotkhai, Rohru and Rampur) were selected to study development of resistance to dodine, mancozeb and carbendazim. The mean EC50 value for the entire test population of Marssonina coronaria observed was 0.038, 0.237 and 0.096 mg/l for dodine, mancozeb and carbendazim, respectively. The highest Mean Resistance Factor was observed for carbendazim, i.e. 2.48 followed by mean resistance factor for the dodine fungicide i.e. 1.56 and least mean resistance factor was observed for mancozeb at 1.15, thereby indicating no development of resistance in M. coronaria to the test fungicides