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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: Plant Pathology × Start date: 2019 × Type: Thesis × Rating Count: 3 × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    SURVEY, BIOLOGICAL & MOLECULAR CHARACTERIZATION AND MANAGEMENT OF CUCUMBER MOSAIC VIRUS IN GHERKIN (Cucumis anguria L.)
    (University of Agricultural Sciences GKVK, Bangalore, 41834) Kavyashri, V V; NAGARAJU, N
    Cucumber mosaic virus (CMV) is most destructive disease on gherkin. Survey during 2013-14 revealed that, disease incidence ranging from 16.00 to 59.65 per cent with the highest incidence recorded in Kolar (51.27%) and least in Bangalore rural (17.15%). The virus was readily transmitted by sap and aphids on gherkin cv. green long and showed systemic mosaic with dark and light green or with yellow patches with slight puckering. A single vector, Aphis gossypii per plant was sufficient to transmit disease upto 20 per cent, whereas, 100 per cent transmission was obtained in A. gossypii and 90 per cent in Myzus persicae when 5 and 10 aphids per plant were used with 10 min. acquisition and inoculation access period. Ash gourd, Bottle gourd, Bush squash, Cucumber, Muskmelon, Pumpkin, Ridge gourd, Round melon and Chilli showed mosaic symptoms, Tomato showed shoestring symptom, Chenopodium and Cowpea showed necrotic local lesions upon inoculation with CMV. Virus reacted strongly to cucumovirus specific antisera through DAS-ELISA. PCR product of CMV infected sample with CPprimers indicated ~700bp-DNA and showed high nucleotide homology with the strains of CMV subgroup-IB (95-99%) and sequence conservation of nucleotide (99%) with ANstrain (subgroup-IB). CMV in gherkin was effectively managed by border crop African tall maize + reflective mulch + spraying Lastraw (0.5%) + Neemark (0.5%) + Groundnut oil (1%) at 15 days intervals which recorded the lowest mean per cent incidence (8.05) compare to control (36.00). Out of 43 genotypes screened, Hyb.11 genotype showed immune reaction to CMV.