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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: Genetics and Plant Breeding × Author: VIJAYA KUMARA, L × Start date: 2006 × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    GAMMA IRRADIATED VARIABILITY STUDIES IN BAMBARA GROUNDNUT (Vigna subterranean (L.) Verdc.)
    (University of Agricultural Sciences GKVK, Bangalore, 40600) VIJAYA KUMARA, L; NANDINI, R
    The present investigation was under taken with the objectives of determining the optimum dose of gamma rays for the variety SB-42, assessing genetic variability in M2 generation and to know the correlation and path coefficient between seed yield and its component characters. For the present study, variety SB-42 of Bambara groundnut was irradiated with the gamma radiation at doses of 150Gy, 175Gy, 200Gy and 225Gy. Germination and survival per cent in M1 generation decreased with the increase in doses of gamma radiation. Lower dose of 150Gy did not affect the germination whereas germination was affected at 225Gy. Optimum dose was found to be 200Gy for survival. In M2 generation, negative shift in mean was observed for all the characters except days to flowering, but shelling percentage and number of pods per plant showed positive shift in mean at 150Gy and 175Gy. Correlation study in M2 generation revealed that different doses of gamma rays are responsible for enhancing, reducing or altering the correlation for the characters and thus provide opportunity to improve yield. Number of branches per plant, pod yield per plant and number of pods per plant showed highly significant correlation with seed yield. From the path coefficient studies it was observed that the characters which showed high positive correlation with yield may not exert direct positive effect on the yield. Pod yield per plant followed by shelling percentage (except at 150Gy) and number of pods per plant (except at 150Gy) exerted maximum direct effect on seed yield per plant. Significant morphological variability was observed following gamma irradiation. One early maturing, four double seeded plants and two high yielding mutants were identified as economic mutants.