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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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2019232
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End date: 2019 × Start date: 2019 × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    STUDIES ON PYTHIUM SOFT ROOT ROT DISEASE OF MULBERRY
    (University of Agricultural Sciences, Bangalore, 2019-08-28) RAVICHANDRA; Y. M. SOMASEKHARA
    Mulberry crop affected by many diseases and threatening the mulberry cultivation. Recently, some of the mulberry gardens were infected with soft root rot disease with symptoms like withering and drying of leaves, mucilaginous matrix on bark of the roots resulting roots become soft and ultimately the plant showed epinasty and wilting. The soft root rot disease was observed in Agara (43.76 %), Kebre (32.57%), Thattekere (18.79%) and Gerehalli (13.58%) villages of Ramanagara district and Maddur (7.89 %), Halaguru (16.78 %) and Malavalli (6.58 %) of Mandya district. The pathogen Pythium sp. Was isolated from infected roots and identified based on morphological characters and proved pathogenicity. The maximum growth of the pathogen was found at 25 °C with pH 7. PDA (90 mm) and V-8 agar (90 mm) supported maximum growth of the pathogen. Among the fungicides evaluated in vitro condition Captan (86.29 %), Mancozeb + Metalaxyl, Carbendazim + Mancozeb, Fenamidone + Mancozeb, Azoxystrobin + Mancozeb (94.44 %), and Tebuconazole (100 %) were found effective. Among botanicals, neem extract (14.02 %) had highest inhibition of the pathogen. Trichoderma viride-1 (95.54 %) and Bacillus pumilis (58.88 %) were effective in vitro conditions. The bio-agents T. viride-1 and T. viride-2 found effective in glasshouse and field conditions. The effective fungicides Mancozeb + Metalaxyl (0.1 %) and Captan (0.2 %) reduced disease under field conditions up to 31.96 and 27.45 per cent, respectively. These fungicides, botanicals and bio-agents can be exploited for the management of soft root rot disease of mulberry.
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    ThesisItemOpen Access
    EVALUATION OF HUMAN ELEPHANT CONFLICT IMPACT USING REMOTE SENSING AND GEOGRAPHIC INFORMATION SYSTEM IN LANDSCAPES OF SAKALESHPUR AND ALUR TALUKS, CENTRAL WESTERN GHATS
    (University of Agricultural Sciences, Bangalore, 2019-08-28) CHETHAN, C M; CHETHAN, C M; RAGHAVENDRA, S; RAGHAVENDRA, S
    The Asian elephant inhabits more densely populated country like India that is facing rapid development accompanied by a high rate of deforestation, leading to increased interaction with humans. Sakaleshpur and Alur Taluks in Karnataka is one such case that has witnessed a higher level of human-elephant conflict (HEC) over the years. Forest area has been decreased from 32.00%(1998) to 30.10%(2011) and degraded further into 25.00% in 2018. Elephants are moving to the farmlands due to developmental activities. Increased plantation area from 17.80% to 24.50% resulted in increased area for elephant refuge. 50% of dung samples shows presence of 1-50 coffee beans. Respondent’s perception revealed that elephant menace was increased from the past 10 years(76.50%), due to scarcity of food and water(36.50%), attraction towards crops(23.00%),forest-fringes(7.50%),inadequate preventive measures(6.00%) and increased elephant’s population (6.00%). The vulnerability areas of HEC shows that damage was severe in the areas near to coffee, monoculture plantations and reserve-forest. More conflict incidences were observed within the distance of one kilometer from the reserve forest, and it decreased as distance increased. The severe conflict was seen during paddy maturation stage in the month of October- December. Elephants prefer Dawn, Dusk and night for crop-raiding to avoid human disturbance. Assessment made at a spatial and temporal level can be useful for taking up proper management of conflict at ground level.
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    ThesisItemOpen Access
    PHYSIOLOGICAL EVALUATION OF THE SELECTED MUNGBEAN GENOTYPES FOR FRUIT SET
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2019-08-06) TANUJA, MARASHETTIHALLY; Shankar, A. G.
    Mungbean [Vigna radiata (L.) Wilczek] is an important crop in India and serves as a major source of dietary protein. Apart from the nutrition quality, crop performance is very low due to some of the physiological factors viz., insufficient partitioning of assimilates, poor pod setting due to high flower abscission. Thus a study was conducted at GKVK, Bengaluru to assess the influence of hormones, humic substances and urea spray treatments on flower drop, fruiting efficiency and seed yield. Physiological screening of 22 mungbean genotypes revealed that EC693358, C6-11-4 and C3-11-6 were high yielding genotypes with lower fruiting efficiency and VC3960-88, EC693362 and EC693363 were low yielding genotypes with higher fruiting efficiency. Results indicated the inverse relation between seed yield and fruiting efficiency. The contrasting genotypes for fruiting efficiency and seed yield were assessed with different foliar treatments which include hormonal mixture (NAA 20 ppm + GA 10 ppm + CK 5 ppm), brassinosteroid (0.1 ppm), planofix (0.5 ml/l), humic substances (3 ml/l) and 1% urea spray under both pot and field conditions. Significant interaction was observed between different foliar treatments and genotypes. Among the contrasting genotypes C6-11-4 showed highest total number of flowers, pod number and seed weight in both pot and field conditions. Among the treatments humic substances followed by hormonal mixture treatments showed highest total number of flowers, pod number and seed weight in both pot and field conditions. The C6-11-4 genotype under humic substances and hormonal combination (NAA+GA+CK) performed better and yielded high.
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    ThesisItemOpen Access
    IMPACT OF PRESSMUD AND BIOCOMPOST ON SOIL PROPERTIES, GROWTH AND YIELD OF FINGER MILLET (Eleusine coracana G.)
    (UNIVERSITY OF AGRICULTURAL SCIENCES, GKVK BENGALURU, 2019-08-07) POOJA, K.; Chamegowda, T. C.
    A field experiment entitled “Impact of pressmud and biocompost on soil properties, growth and yield of finger millet (Eleusine coracana G.)” was conducted during kharif 2018 at Chamundeshwari Sugars Ltd., Bharathi Nagar, Maddur (Tq), Mandya (D). The experiment was laid out in a randomised complete block design with ten treatments and three replications. The experimental results revealed that application of RDF + Biocompost @10 t ha-1 has significantly increased the plant height (91.86 and 115.2 cm at 60 DAT and harvest, respectively), number of tillers per plant (3.64 at 60 DAT and harvest), chlorophyll content (42.85 and 39.85 at 60 DAT and harvest, respectively), number of fingers per ear head (6.32), finger length (7.22 cm), test weight (3.31 g), grain yield (3765 kg ha-1 ) and straw yield (6109 kg ha-1 ) when compared with POP. Significantly higher major available nutrient like N (398 and 382.3 kg ha-1 at 60 DAT and harvest, respectively), P2O5 (195.3 and 173.2 kg ha-1 ) and K2O (467.9 and 381 at 60 DAT and harvest, respectively) has recorded with the application of RDF + Biocompost @10 t ha-1 . Significantly higher grain and straw uptake of N (44.43 and 45.81 kg ha-1 ), P (18.45 and 20.77 kg ha-1 ) and K (19.40 and 48.87 kg ha-1 ) has recorded in RDF + Biocompost @10 t ha-1 when compared with POP.
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    ThesisItemOpen Access
    BIO-EFFICACY AND PHYTOTOXICITY OF NEW HERBICIDE MOLECULES FOR EFFECTIVE WEED MANAGEMENT IN DIRECT SEEDED RICE (Oryza sativa L.)
    (UNIVERSITY OF AGRICULTURAL SCIENCES, GKVK BENGALURU, 2019-08-06) RAGHAVENDRA, N.; SANJAY, M. T.
    A field experiment entitled “Bio-efficacy and phytotoxicity of new herbicide molecules for effective weed management in direct seeded rice (Oryza sativa L.)” was conducted at the Main Research Station, University of Agricultural Sciences, Hebbal, Bengaluru, during Kharif 2018. Nine herbicide treatments including four new herbicide molecules (carfentrazone, ethoxysulfuron, penoxsulam + cyhalofop and triafamone + ethoxysulfuron) at 15 DAS, bispyribac sodium at 15 DAS, pyrazosulfuron, oxadiargyl, bensulfuron methyl + pretilachlor, pendimethalin at 3 DAS, passing cycle weeder followed by hand weeding at 20 and 35 DAS and unweeded control were replicated thrice in RCBD. Major weeds observed were Cyperus rotundus, Cynodon dactylon, Dactyloctenium aegyptium, Ageratum conyzoides, Borreria articularis, Commelina benghalensis. Post emergence application of triafamone + ethoxysulfuron 30% WG (RM) 60 g a.i./ha at 15 DAS fb passing cycle weeder and hand weeding at 35 DAS recorded significantly higher rice grain yield, net returns and B:C ratio (5491 kg ha-1 , Rs. 59,240 ha-1 and 2.58, respectively) and was on par with passing cycle weeder followed by hand weeding at 20 and 35 DAS (5618 kg ha-1 , Rs. 57,434 ha-1 and 2.39, respectively) followed by bensulfuron methyl + pretilachlor 6.6% G 660 g a.i./ha within 3 DAS fb passing cycle weeder and hand weeding at 30 DAS (5122 kg ha-1 , Rs. 54163 ha-1 and 2.47, respectively) without any phytotoxicity on direct seeded rice. Unweeded control recorded significantly lower rice grain yield, net returns and B:C ratio (1400 kg ha -1 , Rs.- 1084 ha -1 , 0.96, respectively) and higher weed index (75.08%) compared to other treatments.
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    ThesisItemOpen Access
    ASSESSMENT OF CARBON SEQUESTRATION POTENTIAL OF SOILS UNDER DIFFERENT AGRO-CLIMATIC ZONES OF SOUTHERN KARNATAKA
    (UNIVERSITY OF AGRICULTURAL SCIENCES, GKVK BENGALURU, 2019-08-08) PRADEEP
    Concerns about increasing levels of carbon dioxide in atmosphere drawn scientific attention towards the global carbon cycle and role of pedosphere in sequestering carbon. A study to assess and evaluate carbon sequestration potential of soils of southern Karnataka with respect to climate, landform, soil type and different land use systems. Ten soil pedons were studied based on soil map of Southern Karnataka, 2 each at Brahmavara, Balehonnur, Hassan, Tiptur and Hiriyur representing the different agro-climatic zones and land use. Soils of the study area were moderately shallow in Hiriyur and the rest deep to very deep. Soil reaction varied from strongly acidic in Balehonnur and Brahmavara, slightly acidic in Hassan and Tiptur, moderately alkaline in Hiriyur. Higher potential organic carbon sequestration in kg per square meter of top 150 cm was recorded in Balehonnur at 11.97 (Hilly zone), followed by Brahmavara at 10.16 (Coastal zone), Hassan at 8.72 (Southern and Northern Transition Zone), Tiptur at 6.81 (Eastern and Southern dry zone) and Hiriyur at 1.81 (Central Dry Zone) and dynamic organic carbon at top 30 cm recorded 6.44, 5.37, 3.69, 2.11 and 1.24 respectively. The order of potential and dynamic carbon sequestration potential is per-humid, humid, subhumid, moist semi-arid and dry-semi-arid climate. Evergreen forests recorded highest carbon sequestration potential followed by coffee, semi-evergreen forests, arecanut, cashew, coconut, eucalyptus, scrub forest and field crops.
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    ThesisItemOpen Access
    EVALUATION OF HERBICIDES IN DIRECT SEEDED FINGER MILLET [Eleusine coracana (L.)]
    (UNIVERSITY OF AGRICULTURAL SCIENCES, GKVK BENGALURU, 2019-07-30) YATHISHA, K. P.
    A field experiment was conducted during Kharif-2018 at Zonal Agricultural Research Station, V. C. Farm, Mandya. The experiment was laid out in RCBD emphasizing nine treatments and replicated thrice. The treatments were consisting of five pre-emergence herbicides (Atrazine, oxadiargyl, bensulfuron methyl + pretilachlor, pendimethalin and isoproturon), two post-emergence herbicides (Bispyribac sodium and ethoxysulfuron), hand weeding at 20 and 35 DAS and weedy check. Major weeds observed were Cyperus rotundus, Cynodon dactylon, Eleusine indica, Ageratum conyzoides, Parthenium hysterophorus and Commelina benghalensis. Among different herbicides, pre-emergence application of bensulfuron methyl + pretilachlor 6.6% G at 198 g a.i. ha-1 + hand weeding at 30 DAS recorded lower total weed density, weed dry weight, weed index and higher weed control efficiency (29.0 m-2, 15.65 g m-2, 84.0% and 91.57%, respectively) and registered significantly higher grain (3345 kg ha-1) and straw yield (4905 kg ha-1), which may be attributed to significantly higher plant height (97.3 cm), number of tillers (39.3 m-1) and total dry weight of plant (67.8 g hill-1) at harvest. The same treatment shown higher yield attributing characters viz., number of productive tillers (37.4 m-1), finger length (9.9 cm) and grain yield per plant (25.30 g) and this treatment also resulted in higher net returns (` 46,907 ha-1) and B:C ratio (2.48) and found to be most economical and comparable with the treatment intercultivation and hand weeding at 20 and 35 DAS in direct seeded finger millet.
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    ThesisItemOpen Access
    STANDARDIZATION OF SEED PRODUCTION TECHNIQUES IN BROWNTOP MILLET (Brachiaria ramosa L.)
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2019-12-04) MADIWALAPPA, A BALUNDAGI; PARAMESH, R.
    Browntop millet (Brachiaria ramosa L.) is an important small millet, rich in micronutrients and fiber content. It is hardy crop growing in moisture and nutrient limiting condition. It is rich in nutrients, much work not done on planting density and nutrient application is not yet fully standardized in seed production. In the view of above facts study on Standardization of seed production techniques in browntop millet was undertaken at NSP, UAS, GKVK, Bengaluru during rabi 2018 to popularize its importance. Twelve treatment combination were arranged in factorial randomised block design with three replications, which includes three spacing levels (S1 - 22.5 x 10 cm) , (S2 - 30 x 10 cm) and (S3 – 45 x 10 cm) four nutrient levels (N1 - 20:20:0, N2 - 20:20:10, N3 - 30:20:10 and N4 - 40:20:10 NPK kg ha-1 ). The results revealed that treatment combination (S3N4) with wider spacing and higher dose of nitrogen level recorded maximum growth, seed yield and quality attributes viz., plant height (113.26 cm), total number of tillers plant-1 (13.36), total number of productive tillers plant-1 (12.03), panicle weight plant-1 (28.5 g), seed yield plant-1 ( 26.5g), test weight (3.98 g), seed germination (92.53 %), seedling vigour index – I (1714) and SVI- II – (1139), EC (268.17 µS cm-1 ),seed protein content (11.25 % ) and over narrow spacing treatments with less nitrogen application (S1N1) registered (80.15 cm, 8.36, 7.03, 22.28 g, 21.5 g, 3.07 g, 83.6 %, 1435, 868, 372.30 µS cm-1 , and 10.65 % respectively) less values.
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    ThesisItemOpen Access
    PERFORMANCE OF CORIANDER (Coriandrum sativum L.) TO DIFFERENT SOURCES OF ORGANIC PHOSPHORUS AND PSB ON GROWTH, SEED YIELD AND ESSENTIAL OIL CONTENT
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2019-08-06) SUBHAS SANNAPPANAVAR; GANGADHAR ESWAR RAO, G.
    A field experiment was conducted during rabi-2018 at Research Institute of Organic Farming field unit, UAS, GKVK, Bengaluru to study the Performance of coriander (Coriandrum sativum L.) to different sources of organic phosphorus and PSB on growth, seed yield and essential oil content laid out in Randomized Complete Block Design with 10 treatments replicated thrice and the variety used was Co Cr-4. Results of the experiment revealed that phosphorus at 40 kg ha-1 applied through neem cake + PSB at 2 kg ha-1 recorded significantly higher seed yield (665 kg ha-1) and essential oil yield (4.72 kg ha-1). These results are attributed to enhanced growth parameters like plant height (81.6 cm), primary branches per plant (5.40), leaf area (287.33 cm2 plant-1), dry matter production per plant (7.07 g) and yield attributes like number of umbels per plant (19.20), number of umbellets per umbel (6.28), number of seeds per umbel (28.97) and higher essential oil content (0.71%). The higher linalool content of the coriander (75.09%) was recorded with phosphorus at 40 kg ha-1 applied through biogas slurry + PSB at 2 kg ha-1. Lower seed yield (511 kg ha-1) and essential oil yield (3.47 kg ha-1) recorded with the phosphorus at 40 kg ha-1 applied through rock phosphate alone. Whereas, higher C:B ratio (2.84) was recorded with phosphorus at 40 kg ha-1 applied through biogas slurry + PSB at 2 kg ha-1.