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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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2010 - 2014254
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End date: 2014 × Start date: 2010 × Thesis Type: Ph.D ×
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Now showing 1 - 9 of 254
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    ThesisItemOpen Access
    STUDIES ON ANTHRACNOSE DISEASE OF FIELD BEAN (Lablab purpureus L.) CAUSED BY Colletotrichum lindemuthianum (Sacc. & Magnus) Lams. Scri.
    (University of Agricultural Sciences GKVK, Banglore, 2012-08-01) MANJUNATH, , B.; NAGARAJU
    No Abstract
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    ThesisItemOpen Access
    STUDIES ON THE SEED TECHNOLOGICAL ASPECTS OF FENUGREEK (Trigonella foenum graecum L.)
    (University of Agricultural Sciences GKVK, Banglore, 2010-10-29) LAKSHMI, J; RAME, GOWDA
    No Abstract
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    ThesisItemOpen Access
    PATHOLOGICAL AND VARIABILITY STUDIES ON Colletotrichum spp. CAUSING ANTHRACNOSE (FRUIT ROT) DISEASE OF CHILLI (Capsicum annuum L.)
    (University of Agricultural Sciences GKVK, Banglore, 2010-08-27) PRATHIBHA, , V. H.; NAGARAJU
    No Abstract
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    ThesisItemOpen Access
    EVALUATION OF RICE (Oryza sativa L.) SEGREGATING POPULATION FOR TOTAL GRAIN PROTEIN CONTENT, GRAIN QUALITY AND YIELD TRAITS UNDER AEROBIC AND SUBMERGED CONDITIONS
    (University of Agricultural Sciences GKVK, Banglore, 2010-01-12) SHASHIDHARA, N.; SHAILAJA, HITTALMANI
    No Abstract
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    ThesisItemOpen Access
    MARKER-ASSISTED BREEDING FOR TOLERANCE TO BIOTYPE-4 OF BROWN PLANTHOPPER (Nilaparvata lugens Stal.) AND MANDYA ISOLATE OF BLAST (Magnaporthe grisea Hebert.) IN RICE (Oryza sativa L.)
    (University of Agricultural Sciences GKVK, Bangalore, 2014-11-10) SHILPA, H. B.; Shivakumar, N.
    The present investigation was carried out to transfer major resistance gene Pil conferring resistance to blast (Magnaporthe grisea L.) and bph4 for brown planthopper (BPH, Nilaparvata lugens Stal.) in the genetic background of rice cultivar Jaya through marker-assisted backcross breeding at Zonal Agricultural Research Station, V. C. Farm, Mandya from 2011-2014. The donors ClOlLAC for blast and CR271 l -76 for BPH resistance were crossed with Jaya and the F 1s derived were identified through polymorphic markers. Selected F 1 s were backcrossed with Jaya to raise BC1 F 1, BC2F 1, BC3F1 (separate transfer crosses i. e., Jaya x ClOlLAC and Jaya x CR2711-76) and intercrossed to obtain TC-F2s [(Jaya x ClOlLAC) X (Jaya x CR2711-76)]. The BC 1 F 1s were also selfed to develop segregating BC 1F2 populations. Marker analysis of 101 BC 1F2 plants from (Jaya x ClOlLAC) X Jaya cross, using RM224 marker yielded 32 plants having Pil gene while, from 112 BC 1 F2 plants of (Jaya x CR2711-76) X Jaya cross evaluated, using RM586 and RM589 markers for bph4 gene, 57 plants were found to be homozygous. Out of 111 TC-F2s, 30 plants selected genotypically and 33 phenotypically, had Pil gene. Thirty three pyramided progenies with Pil and 44 with bph4 gene were identified after genotypic and phenotypic evaluation of BC 1 F2s. Totally ten plants having both Pil and bph4 genes were selected. Among them, eight have showed better grain yield/plant (-21.08 g) compared to Jaya (13 g). Plant number 13, 14, 24, 31, 49, 86 and 109 were early to flower (89-99 days) compared to Jaya (11 Odays ). They recorded higher number of filled grains/panicle (58.2-101.67) and spikelet fertility (55.68-64.38%) as compared to Jaya (51.8 and 24.98%). Among the three markers validated, RM224 for blast and RM586 for BPH showed significant association with the pyramided genes.
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    ThesisItemOpen Access
    STUDY ON PERFORMANCE OF RAITHA SAMPARKA KENDRAS (RSKs) IN DAVANAGERE DISTRICT OF KARNATAKA
    (University of Agricultural Sciences, Bengaluru, 2014-06-23) RAMAPPA, PATIL; Nanjappa, D.
    The study was conducted in Davanagere district of Karnataka State, in 2013-14. A scale was developed to measure the performance of RSKs as perceived by the extension personnel and the farmers. The study revealed that 37.78 per cent of the extension personnel perceived the RSKs as having medium overall performance and less than half (42.22%) of the farmers indicated that the RSKs as having medium level of overall performance. It is also evident from the study that nearly half (42.22%) of the extension personnel and 40 per cent of the farmers had favourable attitude towards the functioning of RSKs. The profile of extension personnel viz., age, awards and certificates obtained were having significant association with the attitude of extension personnel towards functioning of RSKs. With respect to farmer’s education, land holding, mass media participation, social participation and extension contact had association with their attitude about functioning of RSKs. The study also indicated that, a majority (93.33%) of extension personnel had opined that follow up activities was satisfactory and majority (84.44%) of the farmers opined that, the literature provided by the RSKs was easy to understand. All the extension personnel expressed non availability of assistants to maintain sales and stock of inputs in the RSKs. A overwhelming majority (94.44%) of the farmers faced the problem of non-availability of need based inputs in the RSKs. Further, the study also revealed that all the farmers suggested that extension personnel need to visit their villages to solve field problems at least once in a week and a vast majority (97.77%) of the extension personnel suggested that quarters facilities should be provided to the AO/AAO at RSKs level.
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    ThesisItemOpen Access
    UTILIZATION OF SUGAR MILL EFFLUENT FOR PADDY-COWPEA SEQUENCE IN CAUVERY COMMAND AREA
    (University of Agricultural Sciences, Bengaluru, 2014-06-10) DINESHA, M. S.; Bhaskar, S.
    Treated sugar mill effluent was used in field experiment to investigate its effect on paddy-cowpea cropping sequence. The experiment was conducted at Research and Development Farm, M/s. Sri Chamundeshwari Sugars Ltd. Mandya District, during 2012-14. The first experiment was laid out in randomized complete block design with eight treatments replicated thrice. It included paddy as test crop during Kharif to know direct effect of treated sugar mill effluent irrigation and cowpea during summer to study its residual effect. Continuous treated sugar mill effluent irrigation along with RDF recorded significantly higher grain yield of paddy (53.8 q ha-1), nutrient uptake, soil available nutrients and B:C ratio (2.24) as compared to RDF with fresh water irrigation. Subsequently, residual effect of the same treatment recorded higher seed yield (996 kg ha-1), nutrients uptake, soil available nutrients and B:C ratio (1.93) of cowpea as compared to all the other treatments in paddy-cowpea sequence. Based on the results of the first experiment on paddy the second experiment on treated effluent irrigation in combination with amendments in paddy was laid out in splitplot design during summer. Continuous treated sugar mill effluent irrigation and RDF recorded higher grain yield (52.2 q ha-1) followed by fresh water irrigation along with RDF (46.7 q ha-1). Among amendments, combined application of gypsum and green leaf manure and green leaf manure alone recorded significantly higher grain yield (46.4 and 45.4 q ha-1, respectively) over other treatments. However, they were on par with each other. Interaction effect of treated sugar mill effluent irrigation along with RDF and combined application of gypsum + green leaf manure recorded significantly higher grain yield (53.7 q ha-1). Economic analysis revealed that interaction effect of continuous treated sugar mill effluent irrigation along with RDF and green leaf manure as amendment recorded higher B: C ratio (2.12).
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    ThesisItemOpen Access
    SURVEY, MOLECULAR DETECTION AND PARTIAL CHARACTERIZATION OF CUCUMBER MOSAIC VIRUS (CMV) AND BANANA BRACT MOSAIC VIRUS (BBrMV) ISOLATES INFECTING BANANA IN KARNATAKA
    (University of Agricultural Sciences, Bangalore, 2014-09-12) BASAVARAJ, S.; Rangaswamy, K. T.
    The use of tissue culture planting material has helped to a greater extent to overcome the problems of viral diseases. However, the genetic variant associated with tissue culture plants has limited their use for raising the crop. Eighty five tissue cultured and sucker propagated banana gardens were surveyed for banana viruses and tissue culture variants. The mean incidence of virus diseases was high (3.78%) in gardens established using suckers compared to tissue culture established gardens (1.47%). The average incidence of somaclonal variants was 2.95 % in tissue cultured gardens. Out of 5532 samples diagnosed only 0.7% of the samples were found positive for viruses. Out of 3572, samples tested for genetic purity using ISSR markers, only 0.1% samples were found to not true to type. Novel, rapid and cost effective Loop mediated isothermal amplification (LAMP) based techniques were revalidated for detection of BBTV, BSV, CMV and BBrMV. Colorimetric indicator dyes like HNB, Calcein, SYBR Green I and thiazole orange successfully differentiated healthy and virus infected samples after amplification, thus colorimetric detection was standardised for detection of banana viruses. Out of 25 ISSR markers validated for their suitability to detect the most common tissue culture variants only three ISSR markers detected the variant with chimeric leaves. However, failed to detect other types of variants observed during survey. RT-PCR amplification of the CMV and BBrMV CP genes using gene specific primers resulted in the amplification of ~650 bp and ~1062 bp products respectively. Phylogenetic analysis of banana CMV and BBrMV isolates under present study based on both nucleotide and amino acid sequences of CP revealed that the CMV isolate belongs to subgroup IB and BBrMV isolate belongs to BBrMV Karnataka group.
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    ThesisItemOpen Access
    GENETIC ANALYSIS OF ECONOMIC TRAITS IN PIGEONPEA [Cajanus cajan (L.) Millsp.]
    (University of Agricultural Sciences, Bengaluru, 2014-07-10) VANISHREE; BYRE GOWDA, M.
    An investigation was conducted in pigeonpea during 2012 and 2013 at UAS, GKVK, Bangalore to explore restorers/maintainers for A2 and A4 cytoplasm-based CMS lines; to identify CMS lines and restorers with desirable gca and hybrids with desirable sca and heterosis; to assess the effects of male sterility inducing cytoplasm on yield and its components; to compare the performance of single cross hybrids (SCH) and double cross hybrids (DCH) and, to predict and validate DCH performance; and to study the relationship of parental diversity with hybrids sca and mid-parent heterosis. Sixteen out of 78 genotypes tested, restored the fertility of A2 cytoplasmbased CMS lines, BRG 1A and Hy 3CA while three out of 36 genotypes, restored the fertility of A4 cytoplasm-based CMS lines, BRG 1A, BRG 3A and Hy 3CA. Of the three A2 cytoplasm-based CMS lines and three restorers, the CMS line Hy 3CA and restorer GRG 206 recorded good gca for seed yield. Out of nine A × R hybrids, Hy 3CA × GRG 206, BRG 1A × GCB 15 and BRG 1A × GRG 206 were heterotic for yield. Male sterility inducing cytoplasm significantly influenced hybrids mean performance and mid-parent heterosis for length of inflorescence and 100 seed weight, while it did not have significant effect on the sca effects for any of the characters. The genotypes BRG 10-2 and BRG 11-1 were good general combiners for most of traits including yield. Among 28 SCH, CoRG 9701 × RKVT 261 and BRG 10-2 × CoRG 9701 were best specific combinations for pods per plant and seed yield. There was good agreement between realized and predicted performances of DCH for all the characters except seed yield. The relationship of parental divergence with hybrid sca effects and mid-parent heterosis was poor enough to have any predictive power of parental divergence.