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University of Agricultural Sciences, Bengaluru

University of Agricultural Sciences Bangalore, a premier institution of agricultural education and research in the country, began as a small agricultural research farm in 1899 on 30 acres of land donated by Her Excellency Maharani Kempa Nanjammanni Vani Vilasa Sannidhiyavaru, the Regent of Mysore and appointed Dr. Lehmann, German Scientist to initiate research on soil crop response with a Laboratory in the Directorate of Agriculture. Later under the initiative of the Dewan of Mysore Sir M. Vishweshwaraiah, the Mysore Agriculture Residential School was established in 1913 at Hebbal which offered Licentiate in Agriculture and later offered a diploma programme in agriculture during 1920. The School was upgraded to Agriculture Collegein 1946 which offered four year degree programs in Agriculture. The Government of Mysore headed by Sri. S. Nijalingappa, the then Chief Minister, established the University of Agricultural Sciences on the pattern of Land Grant College system of USA and the University of Agricultural Sciences Act No. 22 was passed in Legislative Assembly in 1963. Dr. Zakir Hussain, the Vice President of India inaugurated the University on 21st August 1964.

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2000 - 200321
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Subject: Agricultural Microbiology × End date: 2003 × Start date: 2000 × Thesis Type: Ph.D ×
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Now showing 1 - 9 of 21
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    ThesisItemOpen Access
    EFFECT OF AGRICULTURAL PRACTICES ON NATIVE VA MYCORRHIZAL FUNGI AND MSCROBIAL BIOMASS IN SOIL
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK BANGALORE, 2001-07-12) BALAKRISHNA, A.N.; Bagyaraj, D.J.
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    ThesisItemOpen Access
    ROOT ORGAN CULTURE OF VESICULAR ARBUSCULAR MYCORRHIZAL FUNGI
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK BANGALORE, 2000-10-17) DAYALADOSS, D.; BAGYARAJ, D. J.
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    ThesisItemOpen Access
    APPLICATION OF VAMYCORRHIZAL INOCULIIRI FOR CEOPS IMPORTANT IN AGRICULTURE HORTICULTURE AND FORESTRY
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK BANGALORE, 2000-03-23) MAMATHA, .G; BAGYARAJ, D.J.
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    ThesisItemOpen Access
    BIOLOGICAL TREATMENT OF ORGANICALLY POLLUTED WATER FOR RECYCLING IN AGRICULTURE AND ITS EFFECT ON MICROBIOLOGICAL PROPERTIES OF SOIL
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK BANGALORE, 2001-12-08) KOSHY, BINU; VISWANATH, N.R.
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    ThesisItemOpen Access
    SELECTION OF RHIZOBACTERIA ANTAGONISTIC TO Ralstonia solanacearum E.F. Smith CAUSING BACTERIAL WILT IN TOMATO AND THEIR BIOCONTROL MECHANISMS
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK BANGALORE, 2001-08-08) JAGADEESH, K. S.; KULKARNI, J. H.
    As many as 431 native rhizobacterial isolates of tomato were screened in vitro on KB medium for the inhibition of Ralstonia solanacearum causing bacterial wilt disease. Of them, 38 strains were found to be potent antagonists with the zone of inhibition of the pathogen varying from 8-20 mm dia., and 23 of them were fluorescent pseudomonads. When assessed for mechanism of biocontrol, all the potent antagonists produced at least one antibacterial metabolite: antibiotics, siderophores, or HCN. Twenty five strains were found to be antibiotic producers, 23 (only fluorescent pseudomonads) were siderophore producers, 12 were HCN producers, 13 were both antibiotic and siderophore producers, nine were both antibiotic and HCN producers, 12 were both siderophore and HCN producers and nine strains produced all the three metabolites. In the green house experiment, Sid" and Sid'' mutants obtained by the Tn5 mutagenesis of fluorescent Pseuodumonas strains RBL 101 and RSI 125, failed to control the disease as much as their wild type did, thus confirming fluorescent siderophore production as the mechanism of biocontrol in these strains. The green house experiments revealed that 27 antagonistic strains were found to be plant growth promoting (PGPR). The PGPR strains produced copious amounts of plant growth promoting substances viz., lAA and GA. Thirteen rhizobacterial strains were found to be deleterious (DRB), producing unidentified gaseous metabolites. The unusual poor growth and biomass of tomato in the UlC plants was due to the predominance of two deleterious histosphere bacteria (DHB). However, the PGPR strain fluorescent Pseuodumonas RDV 108 inhibited DHB and nullified its inhibitory effect. The fluorescent Pseuodumonas strain RDV 107 was found to be the best biocontrol agent with a per cent disease control of 77.30 besides exhibiting good root colonization ability, plant growth promotion and siderophore and antibiotic production.
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    ThesisItemOpen Access
    STUDIES ON Azospirillum ISOLATES OF ORNAMENTAL PLANTS AND THEIR EFFECT ON Gaillardia pulchella var picta Fouger
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK BANGALORE, 2001-08-08) GADAGI, RAVI; KULKARNI, J. H.
    Investigations were carried out on the isolation, identification, genetic diversity, scrcening of Azospirillum for beneficial traits and their inoculation effect on the growth and flowering of Gaillardia. Attempts were made to improve tlie nitrogen fixing efficiency of Azospirillum through mutagensis. From tlie present investigation, it can be concluded that Azospihllum is a common inhabitant of roots of ornamental plants. Of the 88 isolations made, 55 per cent of isolate were Azospirillum lipofemm while Azospirillum bmsilense represented 41.57 per cent. The nitrogen fixation by Azospirillum isolates in the semi solid medium ranged Irom 1.40 (OAD-36 and OAD-72) to 20.54 (OAD-2) mg g-1 of malate. The ability to fix dinitrogen was also confiiined by acetylene reduction assay. Although all the Azospirillum isolates could produce variable quantity of lAA and GA, strain OAD-57 produced the highest amount of plant growth promoting substances. The genetic diversity of Azospirillum isolates was analyzed tlirough iiitiinsic antibiotic resistance, protein and plasmid profile. The isolates showed wide diversity with respect to intrinsic antibiotic resistance. However using the protein finger printing two definite groups of Azospirillum could discerned. All the isolates contained only one plasmid (22 kb). Based on preliminary screening of all the isolates under pot culture, seven efficient isolates were selected for further field study. From the field experiment, it could be concluded that OAD-2 can play an impoiiant role in tlie N-nutrition of Gaillardia pulchella. Further 25 Azi® and EDAR mutants were obtained through NTG mutagenesis. These mutants had highei* nitrogenase activity and in vitro N fixation (g-1 malate.) The AziR OAD-904, and EDAR OAD-209 perfoimed better tlian their respective wild type isolates, m pot cultures in augmenting plant growth and N-uptake of Gaillardia puldiella.
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    ThesisItemOpen Access
    ASSESSMENT OF MICROBIOLOGICAL AND BIOCHEMICAL QUALITY OF URBAN COMPOST AND ITS IMPACT ON SOIL HEALTH
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK BANGALORE, 2001-12-27) RAGHAVENDRA RAO, B.; RADHAKRISHNA, D.
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    ThesisItemOpen Access
    ECO-PHYSIOLOGICAL, BIOCHEMICAL AND MOLECULAR CHARACTERISTICS OF FRESH WATER AND MARINE WATER SPIRULINA
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK BANGALORE, 2002-01-01) KULKARNI, VIDYA; SHIVAPRAKASH, M. K.
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    ThesisItemOpen Access
    MICROBIAL SOLUBILIZATION OF ROCK PHOSPHATE AND ITS EFFECT ON CHICKPEA
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK BANGALORE, 2002-01-02) KAVITHA, . S; HEGDE, S.V.