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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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2005 - 20095
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Subject: Plant Pathology × End date: 2009 × Start date: 2000 × Thesis Type: M.Sc ×
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Now showing 1 - 5 of 5
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    ThesisItemOpen Access
    STUDIES ON SCLEROTINIA ROT OF CAULIFLOWER ECO-FRIENDLY APPROACHES
    (COLLGE OF HORTICULTURE DR. DR. YASHWANT SINGH PARMAR UNIVERSITY OF HORTICULTURE AND FORESTRY NAUNI, SOLAN, 2005) CUONG, NUGYEN DUC; DOHROO, N. P
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    ThesisItemOpen Access
    INTEGRATED MANAGEMENT OF WILT OF CARNATION CAUSED BY Fusarium oxysporum f.sp. dianthi (Prill. and Del.) Snyd. and Hans.
    (UHF,NAUNI,SOLAN, 2009) NEGI, HOSHIYAR SINGH; GAUTAM, H.R.
    Abstract The present investigation entitled “Integrated management of wilt of carnation caused by Fusarium oxysporum f.sp. dianthi (Prill. and Del.) Snyd. and Hans.” was conducted in the laboratories and experimental farm of the Department of Mycology and Plant Pathology and also at the Department of Floriculture and Landscaping. During the survey of the disease, 11.2-34.7 per cent incidence of wilt was recorded. Among different fungicides tested in vitro carbendazim was found most effective with 90.06 per cent average inhibition in mycelial growth of the wilt pathogen. Soil solarization in combination with leaf residues of cabbage was found most effective with 85.0 per cent reduction in mycelial growth of the wilt pathogen at 5 cm soil depth. Among different soil amendments, darek seed meal was found most effective in reducing the incidence of wilt and improving various plant growth as well as quality parameters. Out of eight bio-formulations tested in vitro against the wilt pathogen, darek seed extract was found most effective with 84.63 per cent average inhibition in mycelial growth of the wilt pathogen. Among four species of Trichoderma tested in vitro, T. viride was found most effective with 67.41 per cent inhibition in mycelial growth of the wilt pathogen. Among bacterial antagonists, B. subtilis was found most effective with 57.05 per cent inhibition. Soil solarization with transparent polyethylene sheet and biodegradable plastic sheet for 40 days resulted in an increase of 5.6 and 3.0°C in average maximum soil temperature, respectively at 5 cm soil depth in comparison to unsolarized soil in the polyhouse. Soil solarization increased the incubation period of the disease by 47.10 and 33.86 per cent and also reduced the wilt incidence by 81.82 and 63.63 per cent with transparent polyethylene sheet and biodegradable plastic sheet, respectively. Soil solarization of the pathogen culture with transparent polyethylene sheet and bio degradable plastic sheet at 5 cm soil depth for 40 days resulted in 84.43 and 68.84 per cent reduction in viable propagules of the wilt pathogen, respectively in comparison to unsolarized beds at same depth in polyhouse. Dip treatment of unrooted carnation cuttings in Trichoderma viride resulted in maximum increase in average root length and plant height by 529.41and 66.63 per cent, respectively. Treatment combinations of darek seeds meal and Trichoderma viride was found most effective in reducing the incidence of wilt and improving various plant growth as well as quality parameters. Treatment combination of soil solarization, cabbage leaves and T. viride was found most effective with 96.16 per cent reduction in the disease incidence and also recorded maximum increase of 53.87, 51.34, 60.38, 38.36, 150.0 per cent in plant height, number of flowers per plant, stem length, flower size and stem strength with A grade flowers, respectively and also recorded 15.20 and 48.51 per cent less days to 1st flowering and flowering period, respectively in comparison to unsolarized control.
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    ThesisItemOpen Access
    STUDIES ON MOULDY CORE AND CORE ROT OF APPLE CAUSING PREHARVEST FRUIT DROP
    (UHF,NAUNI,SOLAN, 2009) HANS, RAJ; SHARMA, J.N.
    Abstract The present investigation entitled “Studies on mouldy core and core rot of apple causing preharvest fruit drop” was undertaken to study the occurrence and incidence of mouldy core and core rot of apple in Shimla district of Himachal Pradesh including isolation and identification, pathogenicity test, cultural characteristics, epidemiological studies in relation to disease initiation and spread of Alternaria alternata the major pathogen involved in mouldy core and core rot of apple. In vitro evaluation of different plant extracts, oils and biocontrol agents of fungal and bacterial origin was also undertaken in present investigation. In vitro and in vivo evaluation of systemic and non-systemic fungicides was undertaken to control the diseases in the field. Maximum incidence (17.70 %) of mouldy core and core rot was recorded at Kotkhai with on an average 16.2 per cent incidence of both these diseases in the surveyed areas of Shimla district. Alternaria alternata was found consistently associated with mouldy core and core rot causing preharvest fruit drop. Its pathogenicity was proved by standard methods and identity was confirmed from standard literature. The pathogen associated with the disease grew best on potato dextrose agar medium at 250C temperature and 6.5 pH. Potassium nitrate and maltose were best nitrogen and carbon sources supporting maximum growth of the Alternaria alternata. For germination of conidia of Alternaria alternata, 30°C temperature and 100 per cent relative humidity were found optimum under in vitro conditions. Among different weather parameters, cumulative rainfall was directly correlated with disease development during both 2008 and 2009 cropping seasons. Regression analysis further showed that the 91.00 per cent variation in preharvest fruit drop was due to mouldy core and core rot. Medium sized Starking Delicious apple fruits with open sinus/calyx tube and length : width ratio falling in 0.96 to 1.05 mm class showed maximum incidence of mouldy core and core rot in the field. Among different plant extracts and essential oils tested in vitro, mehandu (Dodonia viscosa) extract and cinnamon (Cinnamomum camphora) oil gave the maximum growth inhibition of Alternaria alternata. Among the biocontrol agents, Trichoderma hamatum exhibited the maximum inhibition. Under laboratory conditions, EBI fungicides difenoconazole and hexaconazole, and non-systemic fungicide iprodione + carbendazim gave maximum inhibition of mycelial growth as well as spore germination of Alternaria alternata. In the field, EBI fungicides (difenoconazole, hexaconazole and myclobutanil) and protectant (mancozeb flowable, dodine and captan) gave better disease control. Three sprays of difenoconazole sprayed at pink bud, full bloom and petal fall stages of apple provided 94 per cent control of mouldy core and core rot followed by sprays of mancozeb (at pink bud), difenoconazole (at full bloom) and hexaconazole (at petal fall) with 90 per cent disease control without hampering the fruit set.
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    ThesisItemOpen Access
    STUDIES ON BACTERIAL SPOT OF BELL PEPPER (Capsicum annuum L.) CAUSED BY Xanthomonas campestris pv. vesicatoria (Doidge) Dye
    (UHF,NAUNI,SOLAN, 2009) PRASHAD, DURGA; GUPTA, S.K.
    ABSTRACT Bacterial spot (Xanthomonas campestris pv. vesicatoria (Doidge) Dye) is an important disease of bell pepper in mid hills of Himachal Pradesh. Present investigations were undertaken with an objective to study the occurrence of the disease, role of abiotic environmental factors in disease development and to devise suitable disease management strategies. The disease was found to occur in moderate to severe form in different bell pepper growing areas of Solan, Shimla and Sirmour districts of Himachal Pradesh. Based on morphological, cultural and biochemical characters, the identity of the pathogen was confirmed to be Xanthomonas campestris pv. vesicatoria (Doidge) Dye. Optimum growth of the pathogen was obtained at 30o C and pH 7.0. Nutrient sodium chloride broth favoured maximum growth of the bacterium. Moderate temperatures (25 + 1o C) coupled with high relative humidity (80%) were found to favour the disease development. Two lines viz., Feroz and EC-57997 were found moderately resistant while eight lines viz., Selection 17-1-2, Kanauri, SP-628, Midway, EC-57996, Navgaon Collection, Nishant and KTCPH-7 exhibited moderately susceptible reaction under natural epiphytotic conditions. Among five biocontrol agents evaluated, only Pseudomonas fluorescens inhibited the growth of bacterium under in vitro conditions. Aqueous extracts of Allium sativum and Curcuma longa inhibited the growth of the bacterium under in vitro conditions. Foliar sprays of combination of streptomycin sulphate (0.01%) + copper oxychloride (0.25%) and streptomycin sulphate (0.01%) alone resulted in minimum disease severity and maximum fruit yield.
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    ThesisItemOpen Access
    STUDIES ON CULTURAL REQUIREMENTS AND CULTIVATION TECHNOLOGY OF SOME MEDICINAL MUSHROOMS
    (UHF,NAUNI,SOLAN, 2009) DHIMAN, POOJA; THAPA, C.D.
    ABSTRACT The present investigations entitled “Studies on cultural requirements and cultivation technology of some medicinal mushrooms” was undertaken to understand the cultural requirements, spawn production technique of some medicinal mushrooms viz., Auricularia polytricha, Pleurotus ostreatus, Pleurotus eryngii, Flammulina velutipes, Lentinula edodes and Ganoderma lucidum and above all their cultivation technique so as to commercialize the cultivation of later five mushrooms. Different solid media were tried for maintaining the pure cultures and PDA and MEA were found to support maximum radial growth. In case of various liquid media, Glucose- asparagine solution was found to support maximum mycelial growth of F. velutipes, L. edodes, P. eryngii and G. lucidum while Elliott’s and Richard’s solution supported good growth in case of A. polytricha and P. ostreatus, respectively. An optimum temperature of 250C and pH in acidic (4.5) to slightly acidic (6.5) range were found to be preferred by these fungi. Glucose (a monosaccharide), sucrose (a disaccharide) and starch (a polysaccharide) were recorded as good carbon sources. In case of nitrogen sources, ammonical nitrogen and among amino acids, leucine, alanine and aspartic acid supported good growth. Trace elements viz., molybdenum, iron and manganese, vitamins viz., thiamine and biotin, and growth regulators viz., gibberellic acid supported best mycelial growth of the test fungi. For spawn production, grain spawn was evaluated as good substrate. While for cultivation, good yield was recorded using supplemented (5 per cent and wood chips) sawdust in all the test fungi while wheat straw was recorded to give good yield in case of P. ostreatus and P. eryngii that could be recommended for commercial cultivation as they showed superior yield than other substrates