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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: Forest Biology and Tree Improvement × Author: PATIL SANTOSH, H. × End date: 2008 ×
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    ThesisItemOpen Access
    MANAGEMENT OF ROOT ROT OF Casuarina equisetifolia Linn.
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK BANGALORE, 2001-08-13) PATIL SANTOSH, H.; NAIK, S. T.
    Casuarina equisetifolia is a fast giowing tree species extensively grown in the coastal regions of South India because of its multifarious uses. Among various biotic factors which limit the successful establislunent and production of the crop, root rot caused by Macrophomina phaseolina (Tassi) Goid. is one of the important diseases. Survey conducted for root rot indicated that disease incidence was moderate in nurseries where as the plantations of less than six years recorded the highest incidence (46.55 per cent). Less annual rainfall coupled with lesser number of rainy days favoured tlie disease development. Based on the moiphological cliaracters of the pathogen and the typical symptoms produced, the causal organism was identified Macrophomina phaseolina. Analyses of physical and chemical properties of the soil collected from different plantations indicated that plantations with higher sand content (83.72 per cent) and C: N ratio manifested higher disease incidence (7.01). Antagonistic organisms tried under in- vitro conditions revealed that Trichoderma viride and T. harziamum completely inhibited the growth and development of M phaseolina.Experiment conducted to test tJie efficacy of antagonists under nurseiy conditions indicated that the treatment with M. phaseolina (J2) showed lowest per cent seedling emergence (35.75 per cent) compared to that of control. However, addition of antagonistic organisms such as T. viride either through soil application or seed pelleting restored the seedling emergence to the level of control. Per cent survival of the seedlings at regular interval of six weeks indicated that the treatment (T2) with pathogen showed lowest survival. while the treatment (T^) with T. vinde (through soil application) recorded the highest survival. Survival of seedlings in T3 was higher by 6.33, 31.81 and 60.5 per cent over T2 after six. twelve and eighteen weeks, respectively. Seedling parameters such as height, shoot length and root biomass were greatly influenced by the application of antagonists. Population estimation after eighteen weeks of incoiporation of the treatment revealed that the population of M. phaseolina increased by 120 folds, while the population of Trichoderma spp and Pseudomonas fluorescens increased by six to seven and eight to thirteen folds, respectively.