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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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2012 - 20167
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Subject: Apiculture × End date: 2017 × Start date: 2012 ×
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Now showing 1 - 7 of 7
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    ThesisItemOpen Access
    INFLUENCE OF HIVE DESIGN ON SEASONAL PERFORMANCE OF STINGLESS HONEY BEE, Tetragonula iridipennis (Smith)
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2016-08-03) PALLAVI, K; Kuberappa, G .C
    Stingless bees or dammer bees are found in most parts of the world and these bees considered as valuable domestic species. Rearing of these bees is called as meliponiculture, (Heard, 1999). Meliponiculture has been practiced in many countries including various parts of Latin America. Stingless bees occur in all tropical regions of the world. Hundreds of species have been described. These belong to the super family Apoidea, family Apidae and sub family Meliponinae, which is one among three subfamilies of Apidae, which consists of eight genera, having 15 sub-genera. Meliponinae consists of two tribes Meliponini and Trigonini (Wille,1983). Trigona is the largest and most widely distributed genus, which includes 130 species under ten sub-genera. Melipona consists of 50 species and confined to the Neotropics. All Asian and African stingless bee species belong to the tribe Trigonini. The various genera in this tribe include Trigona, Plebeia. Tetragona and Nanotrigona (Camargo et al., 1988)
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    ThesisItemOpen Access
    CULTURABLE MICROBIAL DIVERSITY ASSOCIATED WITH GUT OF APIS SPP. (HYMENOPTERA: APIDAE)
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2015-07-10) SUMA, K. P.; Shylesha, A N
    Honeybees are known to harbour microorganisms in the gut which play an important role in their nutrition. In the present study bacterial strains were isolated from foregut, midgut and hindgut of Apis cerana, A. mellifera, A. jlorea and A. dorsata workers and drones and from different gut regions of queen of A. cerana and A. jlorae collected from different regions of Bengaluru. Identification and characterization of microbes was done by gram staining technique for each isolated strains to differentiate between gram positive and gram negative organisms. The morphological characters of all isolated bacterial colonies were also studied. Total bacterial genomic DNA was extracted from the gut and amplified using PCR with 16S rRNA primers. The partial 16S rDNA sequences from Apis spp. revealed the presence of novel bacterial flora, Bacillus spp. which were more predominant in different guts of worker, queen and drone of Apis spp. The gut microflora varied from gut to gut within the caste and also varied from caste to caste within the species. Acinetobacter iwoffi and Klebsiella varricolawas identified only in Apis jlorea drones compared with other castes and species. In Apis dorsata, Pseudomonas sp. was found which was not found in any other species. The phylogenetic analysis of the Apzs spp. using bacterial strains of different gut regions of different castes clearly indicated the microbial diversity which can be used for management of bee health and as antimicrobial agents.
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    ThesisItemOpen Access
    MELISSOPALYNOLOGICAL STUDIES OF Apis cerana Fab. IN NORTH BENGALURU REGION
    (University of Agricultural Sciences GKVK, Bangalore, 2012-07-10) MARC, NDIMUKAGA.; SHYLESHA, A. N.
    Melissopalynological analysis for identification of bee flora of North Bengaluru was carried out at Department of Apiculture, University of Agricultural Sciences, GKVK, Bengaluru. Based on qualitative and quantitative pollen analysis, eight honey samples and 65 pollen loads collected between September to December, 2011 (Six samples) and between January to April, 2012 (two samples) in North Bengaluru area from India were classified based on their botanical origin to identify the most important floral sources as well as a study on existing bee flora to develop a floral calendar for the region. A total of 42 different pollen types were identified in the honey samples referable to 21 Families, with the best represented families being Fabaceae (19%), Myrtaceae (14%) and Asteraceae (10%). Predominant pollen types were: Mimosa pudica in three samples, Canthium parviflorum and Dendrophthoe sp in one sample where as 26 pollen types were identified from pollen loads samples where Cocos nucifera was the dominant pollen in all pollen types combined together with 40 % of cumulative percentage of occurrence. 56 plant species were recorded as source of nectar/ or pollen for Apis cerana in which some of the flowering plants proved a significant importance to the beekeeping industry in the area by providing pollen and nectar sources throughout the year. These were Sechium edule (Cucurbitaceae), Hamelia patens (Rubiaceae), Clerodendrum speciosum (Verbenaceae), Altemanthera sessilis (Amaranthaceae), Tagetes lemmonii (Asteraceae), Citrus limon (Rutaceae), Tagetes erecta (Asteraceae), Caricapapaya (Caricaceae), Spathiphyllum sp (Araceae), Tagetes tenuifolia (Asteraceae) and Tumera ulmiforia (Turneraceae). The correspondence analysis showed a similarity among the honey and pollen loads’ samples based on pollen composition. The quantitative analysis placed honey samples into Class I (one sample), Class II (four samples), Class III (two samples) and class IV (one sample). A similarity index showed a close degree of similarity in some paired honey samples ranging from 0.54 to 0.8 where as other paired samples showed a dissimilarity ranging from 0.12 to 0.48.
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    ThesisItemOpen Access
    Insect pollinators diversity with special reference to role of attractants in insect pollination for increasing the productivity of Bottle gourd (Lagenaria siceraria L.)
    (University of Agricultural Sciences GKVK, Bangalore, 2012-07-10) SRIKANTH, C. D.; KUBERAPPA, G. C.
    Insect pollinators diversity with special reference to role of attractants in insect pollination for increasing the productivity of Bottle gourd (Lagenaria siceraria L.) was carried out during 2012 at Division of Horticulture, University of Agricultural sciences, GKVK, Bangalore. Ten species of insect pollinators were recorded during flowering before application of attractants. Whereas nineteen species of insect pollinators were recorded during flowering after application of Citral-a and Citral-b. Among them, eight species were belong to order Hymenoptera, five species to Diptera, three species to Lepidoptera and two species to Coleoptera and one species from Hemiptera. The abundance of A. dorsata was constituted 23.28 per cent, whereas other pollinators were constituted 76.70 per cent. The quantity of nectar and sugar concentration was more in female flowers (43.70 μl and 48.60 %) than in male flowers (28.60 μl and 27.40 %). Open pollination with Citral-a and Citral-b was attracting more number of pollinators up to third day of spraying particularly dipterans. After The role of attractant in pollination on quantitative and qualitative parameters such as fruit set, fruit weight, fruit volume, fruit length, number of sound seeds, test weight, moisture, ash content, TSS and germination percentage were maximum in open pollinated plot with Citral-a. However, there was no fruit set in control may be due to absence of insect pollinators.
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    ThesisItemOpen Access
    INTEGRATED MANAGEMENT OF WAX MOTH (Galleria mellonella L.)
    (University of Agricultural Sciences GKVK, Bangalore, 2012-07-10) BHOPALE SANGRAMSINH, P.; Kuberappa, G. C.
    The greater wax moth (GWM) Galleria mellonella (L.) (Lepidoptera: Pyralidae) is a serious pest of Apis cerana. In the present study different binary blends of undecanal and nonanal in the per cent ratio of 95:5, 90:10, 85:15, 80:20, 60:40, 50:50, 30:70, 20:80 and10: 90 elicited response in female GWM, showed that one to four moths among 30moths exhibited behavioural patterns such as stationary fanning, ambulation, ambulatory fanning, hovering, searching and circling. The 30:70 blend elicited maximum response in female moths. The behavioural bioassay revealed that the moths of 3 to 5 days old showed maximum responses to the best binary blend of undecanal and nonanal (3:7) at 7pm to 9pm with more than 60 per cent moths exhibiting pheromone specific behavioural patterns. The funnel trap with best blend of undecanal and nonanal at 3:7 ratio was used for attracting female GWM. However, the trap was failed to attract any moths.Eight different treatments evaluated for different larval instars of GWM viz., refrigeration, Bt Kurstaki (Halt) and pongamia oil gave maximum number of larval mortality and comb protection. In case of Bt local strain 1&2, neem oil and NSKE gave intermediate comb protection and larval mortality. Dried neem leaf gave minimum comb protection and larval mortality. Under natural condition all the products gave maximum protection against GWM. By using normal queen gate moths could able to enter the hive but in modified queen gate moths have difficulty to enter the hive.
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    ThesisItemOpen Access
    STUDIES ON COLONY PERFORMANCE INDEX (CPI) AND ITS USEFULNESS IN MANAGEMENT OF ABSCONDING IN Apis cerana indica Fabricius
    (University of Agricultural Sciences GKVK, Bangalore, 2012-08-31) PRADEEPA, S D; BHAT, N S
    The studies on Colony Performance Index (CPI) and its usefulness in management of absconding in Apis cerana was conducted in UAS, GKVK, Bangalore during 2011-12. The survey on absconding carried out in 5 districts of Karnataka revealed that percentage of absconding was more in Bangalore Rural followed by Dakshina Kannada, Shimoga and Coorg, and lowest in Uttar Kannada. The wax moth incidence (92.50 %) followed by scarcity of nectar (70%) and wasp (67.50 %) was recorded as major threat for absconding. The mean CPI in different seasons was 5.46, 14.14 and 7.28 in rainy, winter and spring season respectively. There was an increase in CPI from 4.6 to 11.4 in the sugar fed colonies. There was a decline in the CPI (7.4 to 3.0) of wax moth infected colony and showed a significant recovery (3.0 to 8.5) after one week of rescue period. The CPI significantly declined from 8.2 to 1.8 in colonies which kept in hot sun and significantly recovered from 1.8 to 9.4 during post rescue period. Decrease in CPI was recorded from 8.0 to 2.6 subsequent to killing of brood and significant recovery was seen from 2.6 to 8.9 during post killing period. Other colony parameters such as brood, pollen and honey area also changed with respective treatments. The comb infestation with wax moth, brood mortality, and exposure of colonies to hot sun would severely affect the CPI. Feeding sugar syrup and pollen other rescue measures would help buildup of CPI and save colonies from absconding.
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    ThesisItemOpen Access
    INSECT POLLINATORS DIVERSITY WITH SPECIAL REFERENCE TO ROLE OF ATTRACTANTS IN INCREASING PRODUCTIVITY OF WATERMELON [Citrullus lanatus (Thunb.)]
    (University of Agricultural Sciences GKVK, Bangalore, 2013-07-22) NOOTHAN KUMAR, N N; KUBERAPPA, G C
    Insect pollinators diversity with special reference to role of attractants in increasing productivity of watermelon [Citrullus lanatus (Thunb.)] was carried out during summer season of 2012-2013 at Agriculture Farm, National bureau of agriculturally important insects, Atturu Layout, Yalahanka, Bangalore. Sixteen and twenty two species of insect pollinators were recorded on flowers of watermelon before and after application of attractants with citral-a and citral-b. Among them, fifteen species were belong to order Hymenoptera, four to Diptera, two to Lepidoptera and one to Coleoptera. The abundance of Apis cerana was constituted 58.61 per cent of the total insect pollinators against 41.39 per cent of other pollinators. The quantity of nectar and its sugar concentration was more in female flowers (3.43 μl and 60.75 %) than in male flowers (2.53 μl and 52.25 %). Effectiveness of attractants in improving quantitative and qualitative parameters such as fruit set, fruit weight, fruit volume, fruit length, number of sound seeds, test weight, moisture, ash content, TSS and germination percentage were maximum in open pollination treated with Citral-a.