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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: ARUNESH KUMAR × Start date: 1975 × Type: Thesis × Thesis Type: Ph.D ×
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    ThesisItemOpen Access
    STUDIES ON SOIL-BORNE DISEASES OF GARLIC IN HIMACHAL PRADESH
    (UHF,NAUNI, 2023-09-22) ARUNESH KUMAR; MEENU GUPTA
    ABSTRACT The present studies entitled, “Studies on soil-borne diseases of garlic in Himachal Pradesh” were carried out at experimental farm and laboratory of Department of Plant Pathology during 2019-2021, Dr. YS Parmar University of Horticulture and Forestry, Nauni, Solan (HP). During the surveys of different garlic growing areas of Solan, Sirmour and Kullu districts of Himachal Pradesh, basal rot showed the maximum incidence in 2019, 2020 and 2021 with overall mean incidence of 14.71 per cent, 14.68 per cent and 13.76 per cent, respectively. However, blue mould rot had the minimum incidence in all the three consecutive years with the overall mean incidence of 3.96 per cent, 3.38 per cent and 3.87 per cent, respectively. The first above ground symptoms of the basal rot were curving, yellowing, and/or necrosis of leaves beginning at the tips and progressively developing downward. In white rot, early symptom was white, fluffy mycelial growth on the stem plate that extended around the base of the bulb and eventually moved up the bulb and inward from storage leaf to storage leaf. The first symptoms of blue mold rot were pale yellowish blemishes, watery soft spots, or occasionally a purplish red stain on the scales. In pathogenicity test, case of inoculation by F. oxysporum, the symptoms of the disease appeared in 23 days after adding mass culture into soil in comparison to clove inoculation by spore suspension wherein symptoms developed in 36 days. Incorporation of mass culture of S. cepivorum to the soil resulted in disease development in 26 days, however, addition of sclerotia to the soil took 40 days in disease development. Similarly, inoculation by mass culture of P. allii took 30 days to develop the disease, whereas, spore suspension showed disease symptoms in 42 days. In disease management studies, foliar application of resistance inducing chemicals under field conditions i.e. salicylic acid (SA) at 0.015 per cent concentration showed minimum disease incidence of 24.65 per cent and maximum disease control of 72.27 per cent. For collection of root endophytes out of three districts, the maximum bacterial endophytic population (109.00×105 cfu/g roots) was recorded of isolate 4 of Solan district, likewise, maximum fungal endophytic population (6.00×103 cfu/g roots) was recorded in isolate 6 of Sirmour district. In vitro testing of bacterial root endophytes showed the maximum mycelial inhibition of 81.02 per cent by isolate 3. However, in vitro testing of fungal root endophytes revealed the maximum inhibition of 63.79 per cent and minimum mycelial growth of 21 mm by isolate 1. The bacterial root endophyte, Alcaligenes faecalis subsp. phenolicus and fungal root endophytes were Trichoderma sp. isolate DGGE and Trichoderma simmonsii strain GH-Sj1 were efficacious under in vitro and pot culture conditions against basal rot of garlic. Evaluation of root endophytes under pot culture conditions showed that the endophytic suspension of isolate 7 exhibited minimum disease incidence of 15.97 per cent. Trichoderma viride and Bacillus subtilis were found best fungal and bacterial antagonist against basal rot of garlic under in vitro conditions. Combined application of Alcaligenes faecalis + salicyclic acid + T. viride was found best to reduce the disease incidence of basal rot of garlic and registered maximum growth and yield of garlic under field conditions