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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 × Author: B. L, Divya × End date: 2017 × Start date: 2012 × Thesis Type: Ph.D ×
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    ThesisItemOpen Access
    Variability studies of Xanthomonas axonopodis pv. punicae (Hingorani and singh) vauterin et al. causing bacterial blight disease of pomegranate and it's management
    (University of Agricultural Sciences, Bengaluru, 2013-09-23) B. L, Divya; K. T, Pandurange Gowda
    Bacterial blight is a serious threat to pomegranate in India. Detailed investigations have been carried out to study the Symptomatology, strainal variation especially at the molecular level to identify virulent strains and finally to develop sustainable integrated management strategies for the semi arid region of Chitradurga district. The bacterium is rod shaped and gram negative. Modified D-5 medium was found superior in supporting the growth of the pathogen. Optimum temperature and pH required for the growth of Xanthomonas axonopodis pv. punicae was 30oC and pH of 7.0 to 7.5 respectively. The amplicon size of around 1.5 kb was noticed in all the nine isolates from Solapur, Sangli, Osmanabad, Hiriyur, Koppal, Bijapur, Bidar, Ananthpur and Coimbatore using 16s rDNA primers confirming that, all these isolates belong to Xap. The genomic and pathogenic variability indicated that the isolates from Solapur, Sangli, Osmanabad, Koppal, Bijapur and Bidar belonged to highly virulent group where as Hiriyur, Ananthpur and Coimbatore isolates belonged to moderately virulent group. Bactrim, norfloxicin and telba were found effective in inhibiting the growth of X. axonopodis pv. punicae under In vitro. Among the two nano particles tested, nano silver particles were found to be effective with the maximum inhibition zone of 23.3 mm at 100 ppm. Pruning during October and November months recorded least per cent leaf and fruit infection. The bagging of fruits resulted in least incidence and severity of disease besides enhancing fruit colour. In the IDM strategy evaluated for bacterial blight disease management, the lowest incidence and severity of disease was observed in the treatment wherein bagging of small sized fruits was followed by K-cycline (0.05%) + Dimethoate (0.2%)) sprays at 15 days interval.