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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: Soil Sciences × Author: Parmar, Shweta × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    ISOLATION, CHARACTERIZATION AND EVALUATION OF PHOSPHATE SOLUBILIZING BACTERIA IN RHIZOSPHERE SOIL OF CAULIFLOWER
    (COLLEGE OF HORTICULTURE AND FORESTRY, DR Y S P UHF, NERI, HAMIRPUR, 2020-07-30) Parmar, Shweta; Saini, Raj
    The present investigation entitled “Isolation, characterization and evaluation of phosphate solubilizing bacteria (PSB) in rhizosphere soil of cauliflower” was carried out during 2018-2019 with the aim to explore native phosphate solubilizing bacterial isolates from the rhizosphere of cauliflower crop grown at different locations (Nadaun, Hamirpur and Bhoranj) in district Hamirpur of Himachal Pradesh. The culturable population of bacteria in cauliflower rhizosphere ranged from 82.76 to 232.91×104 cfu/g on nutrient agar medium. Only 23.27% of the total 275 bacterial isolates screened on Pikovskaya’s agar medium were found to solubilize tricalcium phosphate (TCP). Most of them were Gram negative rods and varied in their biochemical characteristics. Among the 61 PSB isolates screened for plant growth promoting traits, all showed growth on nitrogen free Jensen’s medium, 6.55% were HCN producers, 50.81% isolates showed siderophore production and 68.85% were ammonia producers. PSB isolates also exhibited amylase (27.87%) and gelatinase (47.54%) activity. Their phosphate solubilization index (PSI) widely varied from 1.13 to 6.0. Twenty six isolates having PSI more than 3.5 solubilized phosphate (P) in the range of 68.30 to 454.55 μg ml-1 in liquid medium with TCP. Out of them, twenty best PSB isolates produced IAA (3.63 to 37.70 μg ml-1) in tryptophan supplemented medium and highest was recorded for isolate MUN-2. The isolates NAD3-11 from Nadaun, NER-32 and BAL1-11 from Hamirpur and MUN-6 from Bhoranj that accumulated maximum P (395.38, 417.05, 392.88 and 454.55 μg ml-1 respectively) in liquid medium and exhibited multifarious plant growth promoting activities were selected for molecular identification. On the basis of results obtained from the 16S rRNA gene analysis, the four PSB isolates NAD3-11, BAL1-11, NER-32, and MUN-6 were identified as Pseudomonas sp. strain NAD11, Pseudomonas sp. strain BAL11, Pseudomonas sp. strain NER32 and Pseudomonas sp. strain MUN6 respectively. Ten isolates that showed maximum P solubilization were screened for in vitro cauliflower seed germination and growth studies in filter paper assay. The maximum percent increase in root length, shoot length, root and shoot dry weight, and vigour index was recorded for NAD3-11, BAL1-11, NER-32 and MUN-2. The present study concludes that these PSB isolates could be tested as bioinoculants to achieve more sustainable and environment friendly crop production.