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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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20201
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Subject: Basic Sciences × Author: DHIMAN, MEENAKSHI × Type: Thesis × Thesis Type: Ph.D ×
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    ThesisItemOpen Access
    STUDIES ON BACTERIAL DIVERSITY ASSOCIATED WITH ORGANIC SOURCES OF NUTRIENTS AND THEIR EFFECTS ON GROWTH AND YIELD OF TURMERIC (Curcuma longa L.)
    (NAUNI,UHF, 2020-11) DHIMAN, MEENAKSHI; RANA, NEERJA
    ABSTRACT In order to avoid the excessive use of chemical fertilizers, various traditional inputs such as Panchagavya, Jeevamrit, Farm Yard Manure and Shady soil of banyan tree are available which acts as richest source of the microbial diversity and beneficial for soil health and quality. Due to increase in utilization there may be the scarcity of these organic sources near future. Therefore microorganism (PGPR) from these resources can act as alternative way of fertilizers. Nowadays, PGPR established a efficient and commercial role in sustainable agriculture development around the globe and can reduce chemical input upto 25-30%. Beside this PGPR also provides a cost effective, eco-friendly way of detoxification and bioremediation of soil. Hence, investigation entitled “Studies on bacterial diversity associated with organic sources of nutrients and their effects on growth and yield of Turmeric (Curcuma longa L.)” was carried out during the years 2017-20 in the Microbiology Laboratory, Department of Basic Sciences, Dr YS Parmar University of Horticulture and Forestry, NauniSolan. The samples of organic sources of nutrient (FYM, Panchgavya, Jeevamrit and Organic soil) were collected from different location of Himachal Pradesh (Una, Hamirpur and Nauni) and Punjab (Jalandhar, Hosiarpur and Sangrur). The isolation of bacterial isolates were carried out by using specific medium viz., Nutrient agar medium, PVK medium and Jensen medium. A total of 60 bacterial isolates were selected and purified from different organic sources of nutrients. Out of 60 bacterial isolates (14 from FYM, 5 from panchgavya, 8 from jeevamrit and 33 from organic soil) 49 were P-solubilizer, 53 were nitrogen fixers, 28 were HCN producers, 37 were siderophore producers, 42 showed inhibition against Pythium aphanidematum and 43 showed inhibiton against Collectotrichum capsici. Only 12 bacterial isolates out of 60 isolates were selected on the basis of various PGPR traits (N-fixation, P-solubilization, siderophore, HCN and auxin production) and antagonism against Pythium aphanidematum and Collectotrichum capsici causing rhizome rot and leaf spot of turmeric respectively. Bacterial isolate JS6 showed maximum P-solubilization qualitative (91.56 %) and quantitative (489.59 µg/ml), siderophore production (95.13%) on solid CAS medium and (498.10 µg/ml) in liquid assay, IAA production (69.51 µg/ml), HCN production and antagonism against Pythium aphanidematum (93.88 %) and Collectotrichum capsici (89.54 %). Only three bacterial isolates (PGPR1, PGPR2 and PGPR3) were selected on the basis of maximum plant growth promoting traits for net house study. Bacterial isolates PGPR1 and PGPR3 were identified as Bacillus megaterium whereas; PGPR2 was identified as Pseudomonas fluorescens on the basis of molecular characterization by 16S rDNA. Plants bacterized with isolate PGPR3 (JS6) showed significant increase in rhizome germination (54.67 %), number of leaf per plant (76.89 %), shoot length (46.29 %), shoot fresh weight (30.38 %), shoot dry weight (114.66 %), rhizome length (67.43 %) and in rhizome weight (75.99 %) over T1 (Uninoculated control). Under field conditions the selected bacterial isolate PGPR3 along with 70 per cent dose of chemical fertilizer (NPK) as well as FYM registered significant increase in rhizome germination (21.99 %), number of leaf per plant (56 %), shoot length (37.47 %), shoot fresh weight (65.30 %), shoot dry weight (44.43 %), rhizome length (75 %) and rhizome weight (42.52 %) over T1 (control full RDF and FYM). Biofertilization and bioprotactant characters of the selected bacterial isolate PGPR3 (Bacillus megaterium) paved the way of its use at commercial level may be recommended to the farmers which can significantly reduce the dependence on organic as well as chemical fertilizers coupled with eco-friendly approaches for quality production of turmeric in the state.