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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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Subject: Agricultural Microbiology × Author: AJAY KUMAR, J × End date: 2019 × Start date: 2013 × Type: Thesis × Thesis Type: Ph.D ×
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    ThesisItemOpen Access
    STUDIES ON THE EFFECT OF MICROBIAL INOCULANTS ON GROWTH, YIELD AND WILT SUPPRESSION IN HYBRID CASTOR (Ricinus communis L.)
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2016-02-02) AJAY KUMAR, J; Krishna Naik, L
    Studies on the effect of microbial inoculants on growth, yield and wilt suppression in hybrid castor (Ricinus communis L.) was studied under field conditions during Summer 2015. In vitro experiments were also carried out to study the efficacy of selected microbial biocontrol agents to control Fusarium oxysporum and made used in pot and field studies. The best two treatments involving, the combination of Azotobacter chroococcum,+ Bacillus megaterium, + Trichoderma viride (T15) and Azotobacter chroococcum,+ Bacillus megaterium, + Bacillus subtilis (T14) were selected from pot culture experiment to study their effects on plant growth promotion, yield and disease suppression under field conditions. The results of the field study showed that the combination of Azotobacter chroococcum, Bacillus megaterium, Trichoderma viride with 100 per cent NPK has significantly improved the plant growth parameters like plant height ( 103.07 cm), number of leaves (34.27), number of branches (11.53) and leaf area (8700.67 cm2 pl.-1) and also the yield parameters like number of spikes per plant (8.33), spike length (35.67 cm), capsules per spike (53.27), seed yield (2049.38 kg ha-1), test weight (29.69 g), oil content (49.32%), dry matter production (242.73 yield/pl-1) and least wilt disease incidence (3.33 %) was noticed. Microbial analysis of rhizosphere soil at crop harvest in the above mentioned treatment combination has showed increased microbial population of beneficial microflora, (Azotobacter spp. 18.74×104cfu g-1 soil, PSB 10.35×104 cfu g-1 soil, Trichoderma spp. 13.27×103 cfu g-1 soil) and available nutrient content (Nitrogen 252.58 kg ha-1, Phosphorus 49.81 kg ha-1, Potassium 363.70 kg ha-1) in soil after crop harvest. The results of this study has clearly brought out that conjunctive use of Azotobacter chroococcum + B. megaterium + T. viride as soil application is advantageous for the growth, yield and wilt disease control in hybrid castor.