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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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1990 - 199940
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Subject: Plant Pathology × End date: 1999 × Start date: 1990 × Type: Thesis × Thesis Type: Ph.D ×
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Now showing 1 - 9 of 40
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    ThesisItemUnknown
    STUDIES ON PHYLLODY OF PLANTS WITH SPECIAL REFERRENCE TO PIGEONPEA [Cajanus Cajan ( L.) Millsp.]
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BANGALORE, 1993) SURYANARAYANA, V; REDDY, H R
    ABSTRACT NOT AVAILABLE
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    ThesisItemOpen Access
    INTERACTION OF Fusarlum oxysporum f. sp. Ciceri WITH Meloidogyne incognita ON Cicer arietinum L. AND THEIR MANAGEMENT
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BANGALORE, 1994) KRISHNA RAO, V; KRISHNAPPA, K
    ABSTRACT NOT AVAILABLE
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    ThesisItemOpen Access
    BIOLOGY AND MANAGEMENT OF FALSE SMUT OF RICE [Oryza sativa L.) CAUSED BY Claviceps oryzae - sativae Hashioka IN KARNATAKA
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK BANGALORE, 1999-08-30) HEGDE, YASHODA R.; ANAHOSUR, Dr. K.H.
    Systematic studies were carried out on false smut of rice with respect to its survival, perpetuation, cultural studies, life cycle and to develop integrated management strategies. Disease incidence was maximum (23.78%) in Udupi district. Crop sown beyond July 10th suffered least (0%). Weather parameters like lower maximum temperature (<31 °C), minimum temperature (19°C) and higher relative humidity (>90%) during 50 per cent flowering were favourable for the disease development. False smut has significantly reduced the per cent seed germination (25.26%) and 1000 grain weight (48.06%) and increased the chaffiness (40.86%). Healthy seedlings recorded high amount of phenol and ortho-dihydroxy phenol than the seedlings emerged from infected panicles. Chlamydospores germinated by producing one to four conidia in a wide pH range of 4.5 to 8.5. Production of true sclerotia was observed for the first time in Karnataka. True sclerotia germinated on autoclaved moist sand in 30 days at a temperature of 27 + 2°C by producing two to six stromatic heads. Fungus was identified as Claviceps oryzae-sativae and showed maximum radial growth in rice yeast dextrose agar. Chlamydospores and Pseudosclerotia retained their viability upto four and seven months respectively under room temperature. Sclerotia and chlamydospores were the source of survival and perpetuation of the fungus and helped in the disease initiation and disease cycle. Among different methods of inoculation evaluated, spraying of chlamydospore suspension on the inflorescence during flowering was the best method. Carbendazim (0.1%) was the most effective fungicide both under laboratory and field condition. Eucalyptus citriodora leaf extract was effective in inhibiting chlamydospore germination. Out of 80 genotypes screened, Kavya, lESH 1, IR 30864 were free from infection both under natural and artificial condition.
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    ThesisItemOpen Access
    INVESTIGATIONS ON BURROWING NEMATODE Radopholus similis (Cobb, 1893) Thome 1949, IN BANANA AND ITS MANAGEMENT
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK BANGALORE, 1999-09-20) RAVI, K.; NANJE GOWDA, D.
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    ThesisItemOpen Access
    DEVELOPMENT OF BIO-INTENSIVE INTEGRATED MANAGEMENT STRATEGIES AGAINST ROOT-KNOT NEMATODE, Meloidogyne incognita (KOFOID AND WHITE) CHITWOOD INFECTING TOMATO
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK BANGALORE, 1999-09-28) RANGASWAMY, S. N.; PARVATHA REDDY, P.
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    ThesisItemOpen Access
    VARIABILITY IN Fusarium udum Butler CAUSING WILT OF PIGEONPEA
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK BANGALORE, 1999-08-30) SATARADDI, ARUN R.; ANAHOSUR, K. H.
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    ThesisItemOpen Access
    STUDIES ON DISEASES OF COTTON IN MALNAD (HIGH RAINFALL) TRACT OF KARNATAKA WITH SPECIAL REFERENCE TO BOLL ROT
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK BANGALORE, 1999-08-30) NAIK, S. T.; HIREMATH, R. V.
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    ThesisItemOpen Access
    EPIDEMIOLOGY AND MANAGEMENT OF LEAF RUST OF WHEAT CAUSED BY Puccinia recondita f.sp. tritici ROB. ex DESM. THROUGH HOST PLANT RESISTANCE
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK BANGALORE, 1999-08-30) HASABNIS, SHRIHARI N.; KULKARNI, SRIKANT
    The investigations on leaf rust of wheat caused by Puccima recondita f.sp. tritici Rob. ex Desm. are presented here under. Two multiple regression models were developed for losses in grain yield and thousand grain weight using input variables as values of AUDPC of leaf and stem rusts. Survey for leaf rust revealed, occurrence of boom and burst cycle in wheat genotype DWR 162 and matching pathotype 121R63-1 (77-5) during 1996-97. The uredospore load in the atmosphere showed fluctuation over a time period. The universal model was developed to predict and forecast the leaf rust severity of next fortnight, it was in the form of Y-Y Xi-Xi X2-X2 = 0.4612 . +0.6148 oY aXi 0X2 with, R2 = 0.938. wherein Xi and X2 are mean weekly uredospore load and maximum temperature, respectively. Morphophysiological studies revealed that, leaf rust resistant wheat varieties had thicker leaf lamina and epidermis with leaf cuticle, lesser number of stomata cm'^ of leaf area. Accumulation of total free phenol and orthodihydroxy phenol content was significantly increased with the inoculation of pathogen in general and with incompatible interaction in particular. The activity of peroxidase and polyphenol oxidase isozymes was found to be need based. Leaf rust resistance gene Lr 26 as singly or in combination with Lr 10, Lr 13 and Lr 23 were noticed at higher frequency. The genotypes viz., HD 2189, DWR 236, DWR 241 and NIAW 34 of bread wheat and MACS 2884 and DWR 137 of durum wheat expressed slow leaf rusting mechanism. Epidemiological and host plant resistance studies revealed that, the resistance gene combination as Lr 13 + Lr 23 + Lr 34 is most appropriate at strategic area. The significance of additive and additive x additive gene effects in four wheat crosses indicated utility in the field resistance. Integration of host plant resistance and agronomic manipulation could check the epidemic of leaf rust of wheat.
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    ThesisItemOpen Access