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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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2015 - 201922020 - 20232
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Author: NAGARAJ × Start date: 2010 × Type: Thesis ×
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    ThesisItemEmbargo
    In-silico MINING OF GENES AND PATHWAYS GOVERNING VEGETABILITY IN SOYBEAN (Glycine max M.)
    (2023-01-18) NAGARAJ; MOHAN CHAVAN
    Vegetable soybean is being important food and commercial crop. An attempt was made to find the genes controlling vegetability and quality traits of vegetable soybean. To explore the characteristics of roots, stems, leaves, pods and seeds at maturity stage (R6 stage), flowers at (R2 stage) and pods at seed maturity stage (R7 stage) were taken into consideration for transcriptome data. The RNA-seq datasets were used for identification of differential gene expression analysis. The expression values of the RNA-seq datasets were retrieved from Sequence Read Archive (SRA) database and the reference annotation file was downloaded from the Ensembl plant genome database. All samples were assessed for overall read quality using FASTQC. Mapping of raw sequence reads were done using alignment tool HISAT2. Differentially expressed genes and their quantification was done using R and Dseq software. FPKM values for every transcript associated genes with their expression measurement of each gene at R6 stage were done. The results showed that 42,394 genes were identified, out of which it was found 7,478 genes were upregulated and 8,625 genes were downregulated based on their log2 Fold Change value. The differential gene expression of datasets were graphically represented. The functional enrichment of three different parameters of differentially expressed genes were listed based on biological process, molecular function and cellular component. Pathway analysis indicated major upregulated genes enriched in six pathways. Biological and metabolic pathways of the differentially expressed genes at each reproductive stage was constructed using David functional annotation tool (DAVID).
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    ThesisItemOpen Access
    STUDY OF RAINFALL VARIABILITY ON GROUNDWATER RECHARGE AND PROPOSE RAINWATER HARVESTING STRUCTURES AT YAREHALLI MICRO-WATERSHED OF DAVANAGERE DISTRICT
    (UNIVERSITY OF AGRICULTURAL SCIENCES, BANGALORE, 2020-12-02) NAGARAJ; Rajashekarappa, K. S.
    Geospatial technique were used for land and water management action plan for Yarehalli micro-watershed lies between 750 51' 37.585'' to 750 53' 29.93'' E longitudes and 130 58' 59.959'' to 140 1' 3.722'' N latitudes in Davanagere district of Karnataka. Arc GIS software was used in evaluation of morphological characteristics in micro-watershed. The present study reveals that drainage pattern was dendritic with trunk order 4. The area, maximum length and width of the micro-watershed are 977 ha, 4.40 km and 2.20 km, respectively. The mean value of bifurcation ratio was 3.23, it indicates micro-watershed has been suffered less structural disturbance. The value of drainage density 2.31 km km−2 which indicated that, the region is having permeable subsoil material. The value of form factor indicates micro-watershed is approaching towards elongated shape of watershed. The study was used to estimate groundwater recharge and draft studies were conducted at Yarehalli micro-watershed during 2018-2019. The studies revealed that thetotal draft of groundwater was found to be 29,87,622 m3, against the total recharge of 2,48,105 m3 with the groundwater extractions being 12 times more than the recharge. The result reveals that, 57.31 per cent of the total area is ideal for constructing check dam, 23.17 per cent for farm pond, 8.57 per cent for percolation pond and 1.12 per cent for gully plug. Which helps in sustainable development of the natural resource and socio-economical life of the farmers in micro-watershed.
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    ThesisItemOpen Access
    HOST – PLANT RESISTANCE, MOLECULAR CHARACTERIZATION AND MANAGEMENT OF MUNGBEAN YELLOW MOSAIC VIRUS (MYMV) IN MUNGBEAN
    (University of Agricultural Sciences, Bengaluru, 2018-08-20) NAGARAJ; Nagaraju, N.
    Mungbean Yellow Mosaic Virus (MYMV) is a most destructive and major limiting factor for mungbean cultivation. Among fourteen genotypes (AVRDC lines) evaluated for MYMV resistance during summer 2017, Kharif 2017 and summer 2018, genotypes viz., MYB-6, 7, 8, 9 and 12 showed resistant reaction with low per cent disease index (PDI) and low cumulative disease progress (AUDPC). Further, the resistant genotypes were screened and confirmed for MYMV resistance by vector transmission through whitefly Bemisia tabaci. PCR confirmation was done by using MYMV coat protein gene specific primers with an amplicon of ~900bp which was detected in all the genotypes except MYB-6, 7, 8, 9 and 12. Additionally, the presence of MYMV in resistant lines was confirmed by Rolling Circle Amplification (RCA)-PCR. The molecular characterization of CP gene of MYMV showed 99.6 per cent sequence identity with Mungbean Yellow Mosaic Virus Vigna segment A (AJ132575.1). Yellow mosaic virus disease in mungbean was effectively managed by seed treatment with imidacloprid 600 FS @ 5g kg-1 of seeds + spraying of red sea plant extract LBD-12 (15 DAS) @ 3.0ml L-1 + SEVI [(Synthetic Nucleotide Analog) (30 DAS)] @ 2.0ml L-1 and thiomethoxam 25 WG (45 DAS) 0.5g L-1 (T6) with low PDI (33.89 %), low AUDPC value (1412.40) and high yield (5.15 q acre-1) compared to control (PDI=55.87 %, AUDPC=2056.13, yield=3.97 q acre-1). Interestingly, the same treatment showed increased activity of enzymes like peroxidase, polyphenol peroxidase and phenylalanine ammonia lyase and defence inducing compounds like total phenols and total sugars.
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    ThesisItemOpen Access
    PERCEPTION AND KNOWLEDGE OF PADDY GROWERS TOWARDS IMPROVED PRODUCTION TECHNOLOGIES IN TUNGABHADRA PROJECT AREA OF KARNATAKA
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2015-08-06) NAGARAJ; KRISHNAMURTHY, B.
    The present study was conducted in two taluks of Raichur district in Karnataka state during 2014-15 to analyse the perception and knowledge of paddy growers towards improved production technologies. The total sample constituted 180 paddy growers comprising of 60 marginal farmers, 60 small farmers and 60 big farmers from 12 villages of two taluks in Raichur district. Data was collected from 180 paddy growers using pre-tested interview schedule. The results revealed that 42.22 per cent of paddy growers had high level of perception, whereas 32.78 and 25.00 per cent of paddy growers had medium and low level of perception towards improved production technologies, respectively. Most of the paddy growers (37.78%) belonged to high knowledge level category, while 32.22 and 30.00 per cent of the paddy growers were belonging to medium and low knowledge categories, respectively. Education, farming experience, innovative proneness, achievement motivation and mass media exposure of paddy growers had significant association with their perception and knowledge level. 52.00 per cent and 71.20 per cent of the variation in perception and knowledge of paddy growers respectively could be explained by the selected 17 independent variables. Nonavailability of labours, lack of knowledge to manage the diseases and low price of the product were the major management, technical and marketing problems faced by paddy growers respectively. Providing agricultural inputs and machines on hire basis and providing efficient credit facilities were the important suggestions of paddy growers to overcome the problems.