Loading...
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.
Browse
269 results
Search Results
ThesisItem Open Access SUPPLY CHAIN MANAGEMENT OF BIO-CRAFT PRODUCTS FROM SILK WASTE COCOONS(UNIVERSITY OF AGRICULTURAL SCIENCES, GKVK BENGALURU, 2017-09-25) RAJESAB NADAF; Gracy, C.P.The study was conducted to know the utilization of cut/pierced mulberry silkworm cocoons obtained from grainages as decorative crafts from handicrafts makers. The data from three handicrafts units and 30 randomly selected customers were obtained from Kolar, Chikkaballapura and Mysore districts of Karnataka.Silk cocoon handicraft articles like garlands, different types of flowers, artisans and flower pots were designed. The average capital requirement to start the business was around Rs.36,000 which resulted in a business turnover of Rs. 9,38,424. Bio-craft units yield 5-6 per cent net returns on initial investment. The net profitability index for cocoon garland was 1.28, whereas individual flowers and other craft items showed 1.26 and 1.31 net profits for every rupee cost. Majority of the customers preferred single flowers (93.3 %) while cocoon artisans (26.6 %) was the least preferred bio-craft item. Fishbein-Rosenberg model for customer importance rank of silk cocoon handicrafts characteristics revealed that single flowers with an importance coefficient of 0.708 was the most preferred followed by designed mud pots (0.587). Short inventory, quick turnover and consistent consumer demand for cocoon craft are the strengths of bio-craft units. Lack of skilled designers was the major constraint followed by too much hardship in sale of handicrafts.ThesisItem Open Access EFFECT OF ENRICHED PHOSPHATIC SLUDGE APPLICATION ON SOIL PROPERTIES, GROWTH, YIELD AND QUALITY OF FIELD BEAN (Vicia faba L.) AND FINGER MILLET (Eleusine coracana L.) CROPS(UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2017-12-27) MORAM, HARSITHA; PRAKASH, N. BCharacterization of enriched phosphatic sludge (EPS) revealed that, it contained high amounts of phosphorus (6.88 %) and organic carbon (11.50 %) with appreciable amounts of secondary and micro nutrients. In the incubation study, rate of release of major, secondary and micronutrients was higher in the treatment with EPS @ 1250 kg ha-1 over control. In the pot culture experiment, application of RDF + EPS @ 750 kg ha-1 significantly increased the plant height, dry matter production and nutrient uptake by above ground dry matter of finger millet at 60 DAS. Nutrient status (major, secondary and micro nutrients) was higher in treatment with RDF + EPS @ 1000 kg ha-1. Further, field experiments were conducted to study the effect of enriched phosphatic sludge (EPS) application on soil properties, growth, yield and quality of field bean and finger millet during 2015-16 in V.C. farm, Mandya, with 12 treatments replicated thrice by adopting RCBD design. Higher pod (9.45 q ha-1), stalk (23.14 q ha-1) yield and uptake of nutrients in field bean were recorded in treatment with RDF + EPS @ 750 kg ha-1. Higher grain (38.74 q ha-1), straw (43.0 q ha-1) yield and uptake of nutrients in finger millet was recorded with the application of EPS @ 750 kg ha-1 along with RDF. In case of finger millet and field bean, available nutrient status was improved in treatments which received RDF + EPS @ 1000 kg ha-1, RDF + EPS @ 750 kg ha-1 and RDF + FYM respectively. Economic analysis revealed that, higher B: C ratio was obtained in treatment RDF + FYM and followed by RDF + EPS @ 750 kg ha-1 in both field bean and finger millet crops.ThesisItem Open Access PERFORMANCE OF CHERRY TOMATO [Solanum lycopersicum L. var. cerasiforme (Dunnal) A. Gray] UNDER OPEN FIELD AND POLYHOUSE CONDITIONS WITH VARIED LEVELS OF NITROGEN AND PHOSPHORUS FERTIGATION(UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2017-12-27) ARSHAD; NARASE GOWDA, N.C.The investigation on “Performance of cherry tomato [Solanum lycopersicum L var. cerasiforme (Dunnal) A. Gray] under open and polyhouse conditions with varied levels of nitrogen and phosphorus fertigation” was carried out at the Department of Horticulture, University of Agricultural Sciences, Bangalore during summer 2017. There were 12 treatment combinations comprising of two growing conditions (open field and polyhouse), three levels of nitrogen (120, 150 and 180 kg N ha-1) and two levels of phosphorus (100 and 120 kg P2O5 ha-1) supplied through fertigation with recommended potassium (150 kg ha-1) as a common dose. The experiment was laid out in Factorial Randomized Complete Block Design with three replications. Result revealed that plant height and number of leaves per plant at 120 DAT (384.39 cm and 49.33 respectively), fresh and dry weights (3.00 kg and 446.51 g plant-1, respectively), nitrogen balance index (48.56), total leaf area per plant (6293 cm2), mean fruit weight (15.84 g), TSS content (6.30 ºB), shelf life (15.66 days) and uptake of nitrogen, phosphorus and potassium (181.41, 30.72 and 159.88 kg ha-1 respectively) were significantly higher under polyhouse condition with fertigation level of 180:120 kg N:P2O5 ha-1 (C1N3P2). However, significantly higher number of fruits per plant (316.63), yield per plant (4.46 kg), yield per hectare (78.16 t), Shelf life (15.66 days), net returns ha-1 (Rs.1294081) and cost benefit ratio (4.81) were observed under open field condition with fertigation level of 150:120 kg N: P2O5 ha-1 (C2N2P2). Further, it can be concluded from the study that application of 150:120 kg N: P2O5 ha-1 through fertigation under open field condition is profitable especially during summer season in the Eastern Dry Zone of Karnataka.ThesisItem Open Access STUDIES ON SEED PHYSIOLOGICAL QUALITY OF SUNFLOWER (Helianthus annuus L.) HYBRIDS FOR ABIOTIC STRESSES(UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2017-12-27) YASHASWINI., B; DEVARAJU, P. J.Sunflower seed production affected due to biotic and abiotic stresses. High drought and salinity are common environmental problems which affecting seed germination and plant growth especially in arid and semi-arid regions. Sunflower is an oilseed crop rated moderately salt and drought tolerant crop, but it is sensitive to salt and drought at germination and seedling stages. The effect of salt stress (NaCl) and water stress (PEG-6000), on germination and early seedling growth was studied KBSH-1, KBSH-41, KBSH-44 and KBSH-53 of sunflower hybrids. Among hybrids, highest germination and seedling emergence was observed in KBSH-44, while at -0.6 M Pa concentrations of PEG-6000 were found to be critical lethal dose for all the characters. Among hybrids, the highest germination and seedling emergence was observed in KBSH- 1, whereas increased salt concentration rendered in germination and seedling growth. Plant growth also decreased with increasing PEG concentrations. In addition, there were differences between the sunflower hybrids in terms of their response to drought and salinity. Among the hybrids, highest seed yield per plant was observed in KBSH-44 in PEG induced stress and the seed yield per plant found to be significant under non moisture stress condition than moisture stress conditions. Among the hybrids highest seed yield per plant was recorded in KBSH-1 (H1) in salinity stress.ThesisItem Open Access EFFECT OF DIFFERENT LEVELS OF ENRICHED PHOSPHATIC SLUDGE APPLICATION ON SOIL PROPERTIES, GROWTH, YIELD AND QUALITY OF MAIZE (Zea mays L.) AND PADDY (Oryza sativa L.) CROPS(UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2017-12-27) ERESH; PRAKASH, S. S.Analysis of enriched phosphatic sludge (EPS) revealed that it contained 11.30 per cent organic carbon, 6.88 per cent phosphorus and appreciable amount of other nutrients and can be used as manure in crop production. Incubation studies revealed that rate of release of major, secondary and micronutrients was higher in T7 (soil + EPS @ 1250 kg ha-1) over control under flooded condition. Pot culture experiments revealed that application of RDF + EPS @ 750 kg ha-1 significantly increased the plant height, dry matter production and nutrient uptake by paddy at 60 DAT. The heavy metal content in soil and plants were below detection limit. Further, field experiments revealed that kernel and stover yield of maize increased with increasing levels of EPS as compared to control and significantly higher kernel (90.84 q ha-1) and stover (110.80 q ha-1) yield and nutrient uptake was recorded due to application of RDF + 750 kg EPS ha-1 and it was on par with RDF + FYM @ 10 t ha-1. Grain (76.70 q ha-1) and straw (89.37 q ha-1) yield of paddy was higher with the application of RDF + 750 kg EPS ha-1. Nutrient status of soil after harvest of maize and paddy was improved in treatment which received RDF + 1000 kg EPS ha-1, RDF +750 kg EPS ha-1 and RDF + FYM @ 10 t ha-1. Economic analysis revealed that, highest B: C (2.50) was obtained in treatment T2 which received RDF + FYM 10 t ha-1 in maize and highest B:C (2.46) was obtained in treatment T6 which received RDF + 750 kg EPS ha-1 in case of paddy. The heavy metal elements content was below detection limit both in rice and maize kernel and in soil.ThesisItem Open Access STUDIES ON SOYBEAN MOSAIC VIRUS DISEASE(UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2017-12-27) MAHIPALREDDY; PRAMEELA, H. A.Soybean mosaic virus (SMV) disease caused by a potyvirus is a major constraint in many soybean producing areas. Soybean cv. JS-335 showed 84.00 to 96.00 per cent virus transmission upon mechanical inoculation. The virus was found to be highly stable at pH 6.0. Addition of 0.5 per cent sodium sulphite to phosphate buffer resulted in maximum transmission of virus. Seed transmission of SMV varied from five to ten per cent. Aphid, Myzus persicae Sulz. transmitted the virus from 45.00 to 60.00 per cent. The optimum preacquisition starvation period was one hour, at which 40.00 per cent virus transmission observed. A single viruliferous aphid was able to transmit the virus. The optimum acquisition access period was one minute that resulted in 40.00 per cent transmission. The optimum inoculation access period was 30 seconds at which 50 per cent transmission occurred. In the host range studies soybean, field bean, french bean, cowpea, cucumber, Datura took SMV infection and exhibited mosaic symptoms, whereas Chenopodium exhibited chlorotic local lesions. The virus was detected by DAC-ELISA using potyvirus specific antisera. The RT-PCR product of 500 bp corresponding to coat protein (CP) genes of the virus was amplified from total RNA obtained from SMV infected leaf sample. Of the 500 soybean genotypes screened against SMV under field conditions, none of the genotypes were found immune to SMV disease however, 45 genotypes were resistant and 341 were moderately resistant to soybean mosaic virus disease.ThesisItem Open Access STUDIES ON ETIOLOGY AND MANAGEMENT OF BETELVINE (Piper betle L.) WILT [Fusarium solani (Mart.) Sacc.](UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2017-12-27) SOMANING NARAYANA, SHANKARANAVAR; SOMASEKHARA, Y. M.Betelvine (Piper betle L.) wilt [Fusarium solani (Mart.) Sacc.] is threatening disease in Karnataka due to severe wilting of the plants. Survey revealed that, the highest incidence of wilt in Ramanagar district (33.58%) followed by Hassan (27.42%) and Chikkaballapur (23.05%), whereas lowest wilt incidence in Kolar district (13.25%). Fungus isolated from infected roots and proved pathogenicity, and pathogen produced abundant micro and macro conidia, along with terminal and intercalary chlamydospores in the mycelium. Maximum radial growth as well as mycelial dry matter weight of the pathogen was found in Nash and Snyder’s medium on solid and in liquid form, respectively. In vitro evaluation of fungicides revealed that maximum inhibition of pathogen was found in tebuconazole (91.30%) and tebuconazole + trifloxystrobin (89.81%) followed by carbendazim + mancozeb (88.15%), carbendazim (85.74%) and propiconazole (83.89%). Similarly, Trichoderma harzianum (Th-55) (85.00%) and Bacillus subtilis (P-24) (72.59%) resulted in maximum inhibition of the pathogen in vitro. Under field conditions tebuconazole and propiconazole treated vines showed significantly less wilt incidence of 22.22 and 30.56 per cent, respectively and tebuconazole + trifloxystrobin (44.44%) and carbendazim + mancozeb (47.22%) were on par. Whereas, soil population of the pathogen was significantly reduced in tebuconazole (1.53 ×103 cfu/g of soil) and propiconazole (2.14×103 cfu/g of soil) treated soil. T. harzianum (Th-55) (22.22%) was most effective bio-agent in reducing wilt incidence in comparison with the initial disease level followed by B. subtilis (27.78%), B. subtilis var. amyloliquefaciens (27.78%) and T2+T3+T4+T5 (27.78%) which were on par with each other. The soil population of F. solani was significantly reduced in T. harzianum (Th-55) (2.31 ×103 cfu/g of soil) and T2+T3+T4+T5 (3.57 ×103 cfu/g of soil) treated soil. The fungicides viz., tebuconazole, propiconazole and the antagonist T. harzianum (Th-55) are useful in reducing betelvine wilt disease.ThesisItem Open Access PHOSPHORUS UPTAKE AND GROWTH OF LEUCAENA LEUCOCEPHALA AND SESBANIA GRANDIFLORA AS INFLUENCED BY APPLICATION OF ACIDULATED AND BIO-ACTIVATED ROCK PHOSPHATE AND INOCULATION OF SOIL WITH GLOMUS AGGREGATUM(UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2017-12-27) MAHESH, NAIKWAD; Manjunath, A.A greenhouse study was conducted to determine the influence of application of North Carolina Rock Phosphate (NCRP) formulations and inoculation of soil with Glomus aggregatum on phosphorus nutrition and growth of Leucaena and Sesbania. This investigation consisted of 24 treatments arising from a factorial combination of two plant species, two levels of Glomus aggregatum and six types of phosphorus applications. Based on titrable acidity data the acidification potential of Penicillium sp. was found to be higher than that of Bacillus sp. Application of different formulations of phosphorus significantly increased the extent of root colonization by Glomus aggregatum in Leucaena where as in Sesbania application of acidulated and bio-activated NCRP reduced the extent of colonization by Glomus aggregatum. The inoculation of soil with Glomus aggregatum caused significant increase in total phosphorus uptake in both plants, in total biomass of Leucaena and in root weight of Sesbania. The colonization in roots of plants by Glomus aggregatum significantly enhanced phosphorus uptake efficiency. The results of this investigation indicate that NCRP bio-activated with Penicillium sp could serve as a source of phosphorus to plants and inoculation of soil with Glomus aggregatum enhances the effectiveness of bio-activated NCRP.ThesisItem Open Access Molecular characterization of Gluconacetobacter diazotrophicus isolated from different field crops and its interactive effect with microbial consortia on growth and yield of Maize (Zea mays L.) and Finger millet (Eleusine coracana L.)(UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2017-12-02) SANTOSHA GOWDA, G. B.; EARANNA, N.The Gluconacetobacter species are known to fix large amount of nitrogen without the formation of nodules in monocot plants particularly in sugarcane. This led to recognition of its importance in agriculture. In the present study, four Gluconacetobacters were isolated from Finger millet (R-01), Maize (MZ-01), Sorghum (SO-01) and Sugarcane (SU-01). The four isolates produced brown pigments on PDA and GYC media and orange pigment on LGI-P medium. Besides, they also produced IAA, solubilized P and Zn. These isolates were identified as Gluconacetobacter diazotrophicus by 16S rRNA gene sequence and screened for their efficiency on increasing growth and yield of maize and finger millet under glass house conditions. The isolate of maize (MZ-01) and its consortium consisting of G. diazotrophicus MZ-01 + B. megaterium + G. fasciculatum was found more efficient in enhancing the growth and yield. Therefore, the G. diazotrophicus MZ-01 and its consortia with 50 % recommended dose of fertilizers were selected for field studies. In the field experiment also the consortium of G. diazotrophicus MZ-01 + B. megaterium + G. fasciculatum + 50 % RDF NP found on par with 100 % RDF NP. Further, microbial population including beneficial microbes increased as the age of the plants increased and found maximum at flowering stage in both pot as well as field experiments. Thus, the G. diazotrophicus MZ-01 found superior bacterial inoculant for field crops and could save 50 % nitrogen and phosphorus fertilizers.