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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 × Author: AHMAD, HUSSAIN. × Start date: 2010 × Type: Thesis ×
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    ThesisItemOpen Access
    ROLE OF HONEY BEES IN THE POLLINATION OF GUAVA (Psidium guajava L.)
    (University of Agricultural Sciences GKVK, Bangalore, 2011-06-12) AHMAD, HUSSAIN.; Thirumalaraju, G. T.
    Experiment was conducted on guava variety Allahabed safed at Horticulture farm, University of Agricultural Sciences, GKVK, Bangalore. At flowering stage, guava was visited by ten species of insect pollinators. All these ten species belonged to order Hymenoptera. Among insect pollinators of guava, honey bees were the most predominant species. The peak foraging activity of honey bees was observed between 0900 and 1100 h. Fruit set in relation to frequency of bee visits to the flowers revealed that as the number of bee visits to each flower increased from 0 to 6 visits, the per cent of fruit set also increased (A. dorsata 13.89 to 86.11 %, A. cerana 11.11 to 75.00 % and A. florea 8.33 to 41.67 %). The mean fruit weight, fruit volume, fruit length and fruit width also increased with increase in number of bee visits irrespective of species. The flower drop was lowest in open pollinated plants (12.00 %) compared with those under caged condition (A. cerana 22.67 %, hand pollination at 0900 h 36.67 %, hand pollination at 0800 h 43.33 %, A. florea 54.67 % and hand pollination at 0700 h 66.67 %) and without honey bees (control 88.00 %). Maximum fruit set (88.00 %), fruit weight (144.31 g), fruit volume (131.50 ml), fruit length (6.43 cm), fruit girth (6.60 cm), fruit width (6.50 cm), number of seeds/fruit (250.83) and seed weight/fruit (3.46 g) were found in open pollinated plants, followed by A. cerana pollination, hand pollination at 0900 h, hand pollination at 0800 h, A. florea pollination, hand pollination at 0700 h and control plot. Total soluble sugars and percentage of seed germination was maximum in open pollination plot compared to other modes of pollination.