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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: Agronomy × Author: GURURAJ, SAJJAN × End date: 2015 × Start date: 2010 × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    STUDIES ON EFFICIENCY OF TRIASULFURON 20 WG (LOGRAN) FOR WEED CONTROL AND GRAIN YIELD IN TRANSPLANTED RICE (Oryza sativa L.)
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2010-07-10) GURURAJ, SAJJAN; JAYADEVA, H. M.
    The field experiment was conducted during Kharif season of 2009 at Agricultural Research Station, Kathalgere, Channagiri taluk, Davanagere district, Karnataka state to find out the efficiency of Triasulfuron for weed control and grain yield in transplanted rice. Among the herbicides, Almix @ 4 g a.i. ha-1 caused the higher phytotoxicity followed by Triasulfuron @ 24 g a.i. ha-1 and resulted in stunted growth of the rice plants. Triasulfuron @ 24 g a.i. ha-1, Triasulfuron @ 12 g a.i. ha-1 and hand weeding twice recorded significantly lower density and dry weight of weeds at all growth stages of the crop as compared to other treatments. Hand weeding twice was found very effective against weeds upto 60 DAT thereafter its effect was suppressed and Triasulfuron @ 24 g a.i. ha-1 has become more effective. Grain and straw yields were higher in Triasulfuron @ 12 g a.i. ha-1 (6494 and 6930 kg ha-1, respectively). It was followed by hand weeding twice (6479 and 6893 kg ha-1 grain and straw yield, respectively). Among weed control treatments, the lower yield of grain and straw was recorded by Pyrazosulfuron 10 WP @ 25 g a.i. ha-1 (5828 and 6206 kg ha-1, respectively). Weed control efficiency was higher in Triasulfuron @ 24 g a.i. ha-1 followed by Triasulfuron @ 12 g a.i. ha-1 (93.67 and 91.45 %). Hand weeding twice was found on par with these two treatments with the WCE of 88.56 per cent. The significantly lower seed yield of all three test crops as obtained in pyrazosulfuron @ 25 g a.i. ha-1 followed by almix @ 4 g a.i. ha-1 is mainly due to the residual effect of these herbicides which resulted in lower germination and lower dry matter accumulation. Triasulfuron @ 12 g a.i. ha-1 resulted in higher B:C ratio (1.90) which was followed by Triasulfuron @ 10 g a.i. ha-1 (1.89) and Triasulfuron @ 24 g a.i. ha-1 (1.86).