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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: MANOHARA, S. N. × Start date: 2019 × Type: Thesis × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    IDENTIFICATION OF FERTILITY RESTORERS / STERILITY MAINTAINERS AND ASSESSMENT OF COMBINING ABILITY AND HETEROSIS OF UNTESTED INBRED LINES IN SUNFLOWER (Helianthus annuus L.)
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BANGALORE, 2019-08-05) MANOHARA, S. N.; UMA, M. S.
    An investigation was carried out to study the sterility maintenance and fertility restoration behaviour of 17 new inbred lines on three CMS lines and also to estimate the combining ability and heterosis by crossing the parents in Line × Tester mating design during Rabi summer 2017-18. The resultant 12 fertile hybrids among the generated 51 hybrids, parents and four checks viz., KBSH 41, KBSH 42, KBSH 44 and KBSH 53 were evaluated in augmented design during Kharif 2018. Four inbred lines viz., GMU 411, GMU 441, K 3 and A 7 were recognized as fertility restorers. While, six inbred lines GMU 342, GMU 362, GMU 379, GMU 400, GMU 423 and GMU 426 were recognized as prevalent sterility maintainers for all three CMS lines. The 20 parents were classified into three clusters by following ‘k-means’ clustering method and cluster means were highly significant for most of the traits, implying diversity among the cluster groups. The line NDCMS 2A and the tester K 3 were identified as good general combiner for seed yield and its component traits. The cross combinations CMS 903A × GMU 411 and NDCMS 2A × GMU 411 were highly heterotic for seed yield and its attributing traits over the standard checks. Hence these hybrids could be further evaluated at multilocation trial for commercial cultivation.
  • Thumbnail Image
    ThesisItemOpen Access
    IDENTIFICATION OF FERTILITY RESTORERS / STERILITY MAINTAINERS AND ASSESSMENT OF COMBINING ABILITY AND HETEROSIS OF UNTESTED INBRED LINES IN SUNFLOWER (Helianthus annuus L.)
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BANGALORE, 2019-08-03) MANOHARA, S. N.; UMA, M. S.
    An investigation was carried out to study the sterility maintenance and fertility restoration behaviour of 17 new inbred lines on three CMS lines and also to estimate the combining ability and heterosis by crossing the parents in Line × Tester mating design during Rabi summer 2017-18. The resultant 12 fertile hybrids among the generated 51 hybrids, parents and four checks viz., KBSH 41, KBSH 42, KBSH 44 and KBSH 53 were evaluated in augmented design during Kharif 2018. Four inbred lines viz., GMU 411, GMU 441, K 3 and A 7 were recognized as fertility restorers. While, six inbred lines GMU 342, GMU 362, GMU 379, GMU 400, GMU 423 and GMU 426 were recognized as prevalent sterility maintainers for all three CMS lines. The 20 parents were classified into three clusters by following ‘k-means’ clustering method and cluster means were highly significant for most of the traits, implying diversity among the cluster groups. The line NDCMS 2A and the tester K 3 were identified as good general combiner for seed yield and its component traits. The cross combinations CMS 903A × GMU 411 and NDCMS 2A × GMU 411 were highly heterotic for seed yield and its attributing traits over the standard checks. Hence these hybrids could be further evaluated at multilocation trial for commercial cultivation.