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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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Subject: Apiculture × End date: 2009 × Start date: 2009 × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    POLLINATORS ABUNDANCE WITH SPECIAL REFERENCE TO ROLE OF HONEYBEES IN SEED PRODUCTION OF CMS LINE OF PIGEON PEA, Cajanus cajan L.
    (University of Agricultural Sciences, Bangalore, 2009-07-10) RASHMI, T.; KUBERAPPA, G. C.
    Experiment was conducted at NSP, UAS, GKVK, Bangalore to study the insect pollinators abundance with special reference to role of honeybees in seed production of CMS line of pigeon pea UPAS – 120. Pigeon pea flowers were visited by thirty species of insect pollinators, of which twenty one species belong to order Hymenoptera, two to Diptera and four to Lepidoptera, one each to Coleoptera, Hemiptera and Thysanoptera. The members of the family Apidae of order Hymenoptera constituted 55.75 per cent compared to other pollinators (44.25%). The peak nectar foraging of honeybees on A line (CMS line) flowers was bimodal and it was at 1000 h to 1500 h. Similarly, the maximum pollen and nectar foraging activity on B line was at 1000 h and 1500 h of the day. The maximum time spent by honeybee species for nectar foraging on A line was recorded at 1000 h, whereas time spent varied from 1000 h to 1400 h for nectar foraging on B line. Similarly, maximum time spent for pollen foraging activity on B line was recorded at 1000 h of the day. On body body weight basis, pollen load carried by Apis cerana on B line was significantly high compared to A. florea and T. iridipennis whereas, higher pollen carrying efficiency was recorded in T. iridipennis, followed by A. florea and Apis cerana. The per cent pod set, pod length, pod weight, seeds per pod, seed size and seed weight was maximum in three bee visits per flower on both A and B line. Impact of different modes of pollination on yield parameters in pigeon pea A line (CMS line) as mentioned above including pod volume and germination per cent was maximum in open pollination, followed by A. florea, A. cerana and T. iridipennis pollination plot.
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    ThesisItemOpen Access
    EVALUATION OF LEARNING EFFICIENCY IN Apis mellifera WITH RESPECT TO TIME AND AGE
    (University of Agricultural Sciences, Bangalore, 2009-09-12) ARAVIN, CHAKRAVARTHI; Bhat, N.S.
    Experiments were performed to determine the circadian influence and effect of age on honey bee learning. Along with the above said major objective, associated issues such as odor preference, influence of time on the honey bee sucrose responsiveness, individual variation in learning with time were addressed. Two species of bees were used in the study viz. Apis cerana and Apis mellifera. The results revealed that acquisition performances in Apis cerana was very poor which was in contrast to Apis mellifera which exhibited significant acquisition performances. Hence forth all the objectives were addressed using Apis mellifera as the model system. The results revealed that there is significant effect of time on learning in bees which led to formulation of Scattered and focused attention hypothesis for the strength of learning and the results were not significant for sucrose responsiveness, effect of age on learning and odor preferences. Individual variation in learning was found to vary with time points. And greater variation was found during early morning.
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    ThesisItemOpen Access
    STUDIES ON NON-APIS BEE FAUNAL DIVERSITY OF MYSORE DISTRICT.
    (University of Agricultural Sciences, Bangalore, 2009-07-15) DHANYAVATHI, P. N.; BHAT, N. S.
    The study on faunal diversity of Non- Apis bees (Super family: Apoidea) in and around Mysore district revealed 55 species in 16 genera under 3 families viz., Apidae, Halictidae and Meghachilidae and 6 sub-families viz., Apinae, Xylocopinae, Halictinae, Nominae, Nomioidinae, and Meghachilinae. The genera included under the study are Amegilla Friese, Thyreus Jurine, Braunsapis Michener, Ceratina Cockrell, Xylocopa Latreille (Apidae); Halitus Latreille, Lasioglossum Curtis, Nomia latreille, Nomioides Schenck (Halictidae); Coelioxys Latreille, Megachile Latreille, Heriades Spinola, Eoanthidium Popov, Anthidium Fabricius and Euaspis Gerstaecker (Megachilidae). Each of the specimens were described and illustrated. Keys were also given for their identification. All these species were collected while foraging on 24 plant species belonging to 13 families. Foraging activity was more during bright sunshine hours. Some of these species are useful to mankind as pollinators. The family Verbenaceae attracted the highest number of bee species (19) followed by five plant species of Fabaceae (12) and a single species of bee was collected in one species of Cucurbitaceae. Among the different species of plants, Leucas aspera (Willd.) attracted 12 bee species belonging to six genera; Stachytarpheta indica L. attracted 11 species of bees belonging to five genera, Cuphea hyssopifolia Kunth attracted eight species of bees belonging to six genera, followed by Duranta erecta L. which attracted seven species of bees belonging to five genera and Tridax procumbens L., attracted six species of bees belonging to five genera.
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    ThesisItemOpen Access
    POLLINATION POTENTIALITY OF HONEYBEE SPECIES IN RIDGE GOURD (Luffa acutangula L.)
    (University of Agricultural Sciences, Bangalore, 2009-07-05) RAMESH, R.G.; KUBERAPPA, G. C.
    The floral biology, insect pollinators and their abundance, quantity and quality o f nectar, foraging activity, number o f bee visits and stigmatic receptivity and impact o f different modes o f pollination on quantitative and qualitative parameters in ridge gourd varieties viz., Arka sumeet and Arka sujath was studied at Division o f Horticulture, UAS, GKVK, Bangalore during 2007. Twentyone insect species were found during flowering period. Among them, honeybees constituted about 78.90 per cent o f the total population. The quantity o f nectar gradually increased with the advancement o f time and reach maximum at 0900 h in both staminate and pistillate flowers. The maximum foraging activity o f A cerana indica was observed at 0900 h and at 1000 h in case o f A. florea and T. iridipennis, ceased at 1600 h in both varieties. The time spent for foraging on pistillate flowers was maximum compared to staminate flowers. The higher fruit set, fruit weight, fruit volume, fruit length, number o f sound seeds per fruit and test weight o f seeds was recorded, when the number o f bee visits were eight per flower. The stigmatic receptivity was maximum at 0900 h and there was no fruit set in control plot. The maximum fruit set, fruit weight, fruit volume, number of sound seeds, test weight o f seeds, moisture content and germination per cent was recorded in hand pollination at 0900 h, whereas the maximum fruit length, ash content was recorded in open pollination. The total soluble sugar was 8 to 10 per cent in all modes of pollination.
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    ThesisItemOpen Access
    EVALUATION OF LEARNING EFFICIENCY IN Apis mellifera WITH RESPECT TO TIME AND AGE
    (University of Agricultural Sciences GKVK, Bangalore, 2009-09-12) ARAVIN, CHAKRAVARTHI.; BHAT, N. S.
    Experiments were performed to determine the circadian influence and effect of age on honey bee learning. Along with the above said major objective, associated issues such as odor preference, influence of time on the honey bee sucrose responsiveness, individual variation in learning with time were addressed. Two species of bees were used in the study viz. Apis cerana and Apis mellifera. The results revealed that acquisition performances in Apis cerana was very poor which was in contrast to Apis mellifera which exhibited significant acquisition performances. Hence forth all the objectives were addressed using Apis mellifera as the model system. The results revealed that there is significant effect of time on learning in bees which led to formulation of Scattered and focused attention hypothesis for the strength of learning and the results were not significant for sucrose responsiveness, effect of age on learning and odor preferences. Individual variation in learning was found to vary with time points. And greater variation was found during early morning.