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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: ANNAPURNA, R. MUKKANNAVAR × End date: 2019 × Start date: 2010 × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    EFFECT OF SOIL SOLUTION PHOSPHORUS LEVELS ON EFFECTIVENESS OF VAM FUNGI IN PLANT SPECIES WITH DISTINCT ROOT MORPHOLOGICAL TRAITS
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2016-09-10) ANNAPURNA, R. MUKKANNAVAR; Manjunath, A
    A greenhouse investigation was conducted to determine the effect of soil solution phosphorus levels on effectiveness of VAM fungi in plant species with distinct root morphological traits. This research investigation consisted of 24 treatments resulting from factorial combination of four levels of soil solution phosphorus, three levels of plant species and two levels of Glomus aggregatum inoculation. The level of mycorrhizal colonization level was lowest in maize. The inoculation of soil with VAM fungus did not significantly influence phosphorus uptake by maize. On the contrary, inoculation of soil with VAM fungus increased phosphorus uptake by leucaena and pigeon pea at all levels of soil solution phosphorus tested. Although, total biomass produced by maize was highest, it was not influenced by inoculation of soil with VAM fungus. The extent of increase in total biomass due to mycorrhizal inoculation in pigeon pea was most marked and was significant at soil solution phosphorus levels of 0.032, 0.076 and 0.128 mg/l. The root length, root density as well as root surface area of maize was highest among plants species tested. The results emphasize that root morphological traits are important determinants of effectiveness of VA mycorrhizal symbiosis.