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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: Entomology × Author: ABHISHEK, M. S. × End date: 2019 × Start date: 2000 × Type: Thesis ×
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    ThesisItemOpen Access
    TEMPORAL DIVERSITY OF PARASITOIDS IN RAGI, PADDY AND SUGARCANE ECOSYSTEMS
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2017-07-26) ABHISHEK, M. S.; Jayappa, A. H.
    A study was conducted from March, 2016 to February, 2017 at the College of Agriculture, V. C. Farm, Mandya, Karnataka to determine the parasitoid faunal complex, their abundance and temporal diversity in ragi, paddy and sugarcane ecosystems. Twenty yellow pan traps per crop were laid at fortnightly intervals. Of the 24,586 parasitoid specimens collected from the three agroecosystems, 7725 were from ragi, 8248 were from paddy and 8613 were from sugarcane. Eighteen parasitoid families occurred in ragi and paddy fields while 19 families occurred in the sugarcane field. The parasitoid families collected were Trichogrammatidae, Mymaridae, Encyrtidae, Aphelinidae, Eulophidae, Chalcididae, Eurytomide, Eupelmidae, Torymidae, Ichneumonidae, Braconidae, Scelionidae, Platygastridae, Ceraphronidae, Megaspilidae, Evaniidae, Cynipidae and Diapriidae. All families collected occurred in all three ecosystems with the exception of Perilampidae, which occurred only in the sugarcane ecosystem. Scelionidae was most abundant and richest in genera (33) in all three ecosystems, followed by Encyrtidae (30), Trichogrammatidae (25), Mymaridae (14), Aphelinidae (10) and Platygastridae (8). Of the two-functional groups of parasitoids, viz., egg and other (larval, pupal and adult) parasitoids, the egg parasitoids were more abundant in all the three ecosystems. Parasitoid abundance correlated significantly with rainfall in the paddy ecosystem; no such correlation was found in the other two (ragi and sugarcane) ecosystems. Temperature did not correlate significantly with parasitoid abundance in all three ecosystems. Parasitoid diversity (Shannon-Wiener, Simpson and Margalef’s) was higher in monsoon and winter than in other seasons but it didn’t differ significantly between the three ecossytems.