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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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20183
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Subject: Genetics and Plant Breeding × Author: SHWETHA, H.R. × Start date: 1961 ×
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    ThesisItemOpen Access
    BREEDING POTENTIAL OF FOUR CROSSES FOR QUANTITATIVE TRAITS IN COWPEA [Vigna unguiculata (L.) Walp.]
    (University of Agricultural Sciences, Bangalore, 2018-08-01) SHWETHA, H.R.; Marappa, N.
    Predicting the breeding potential of a cross and early elimination of less productive crosses helps ease up the handling of large segregating populations derived from few promising crosses and hence enhance the efficiency of crop breeding. A study was undertaken to assess breeding potential of four crosses viz., PL-5 × IC-27749, PL-2 × EC-402104, PL-2 × NBC-39 and PL-5 × EC-402104 in cowpea. The crosses with high quantitative trait mean, absolute and standardized range, phenotypic coefficient of variation and frequency of transgressive segregants in F2 and F3 generations were considered to have better breeding potential. The results indicated that the cross PL-2 × NBC-39 followed by PL-5 × EC-402104 were found to have better breeding potential. Hence only these crosses should be forwarded to the next generations. Further, correlation studies indicated significant positive correlations of seed yield with clusters per plant, pods per plant, pods per cluster and seeds per pod, suggesting the use of these traits as surrogates to indirectly select for seed yield in cowpea. Moderate to high narrowsense heritability was recorded for clusters per plant, pods per plant, pod and seed yield per plant in the crosses indicating a prominent role of additive gene action in the expression of these traits. Hence, selection would be effective for these traits in early generation itself.
  • Thumbnail Image
    ThesisItemOpen Access
    BREEDING POTENTIAL OF FOUR CROSSES FOR QUANTITATIVE TRAITS IN COWPEA [Vigna unguiculata (L.) Walp.]
    (University of Agricultural Sciences, Bangalore, 2018-08-01) SHWETHA, H.R.; Marappa, N.
    Predicting the breeding potential of a cross and early elimination of less productive crosses helps ease up the handling of large segregating populations derived from few promising crosses and hence enhance the efficiency of crop breeding. A study was undertaken to assess breeding potential of four crosses viz., PL-5 × IC-27749, PL-2 × EC-402104, PL-2 × NBC-39 and PL-5 × EC-402104 in cowpea. The crosses with high quantitative trait mean, absolute and standardized range, phenotypic coefficient of variation and frequency of transgressive segregants in F2 and F3 generations were considered to have better breeding potential. The results indicated that the cross PL-2 × NBC-39 followed by PL-5 × EC-402104 were found to have better breeding potential. Hence only these crosses should be forwarded to the next generations. Further, correlation studies indicated significant positive correlations of seed yield with clusters per plant, pods per plant, pods per cluster and seeds per pod, suggesting the use of these traits as surrogates to indirectly select for seed yield in cowpea. Moderate to high narrowsense heritability was recorded for clusters per plant, pods per plant, pod and seed yield per plant in the crosses indicating a prominent role of additive gene action in the expression of these traits. Hence, selection would be effective for these traits in early generation itself.
  • Thumbnail Image
    ThesisItemOpen Access
    BREEDING POTENTIAL OF FOUR CROSSES FOR QUANTITATIVE TRAITS IN COWPEA [Vigna unguiculata (L.) Walp.]
    (University of Agricultural Sciences, Bangalore, 2018-08-01) SHWETHA, H.R.; Marappa, N.
    Predicting the breeding potential of a cross and early elimination of less productive crosses helps ease up the handling of large segregating populations derived from few promising crosses and hence enhance the efficiency of crop breeding. A study was undertaken to assess breeding potential of four crosses viz., PL-5 × IC-27749, PL-2 × EC-402104, PL-2 × NBC-39 and PL-5 × EC-402104 in cowpea. The crosses with high quantitative trait mean, absolute and standardized range, phenotypic coefficient of variation and frequency of transgressive segregants in F2 and F3 generations were considered to have better breeding potential. The results indicated that the cross PL-2 × NBC-39 followed by PL-5 × EC-402104 were found to have better breeding potential. Hence only these crosses should be forwarded to the next generations. Further, correlation studies indicated significant positive correlations of seed yield with clusters per plant, pods per plant, pods per cluster and seeds per pod, suggesting the use of these traits as surrogates to indirectly select for seed yield in cowpea. Moderate to high narrowsense heritability was recorded for clusters per plant, pods per plant, pod and seed yield per plant in the crosses indicating a prominent role of additive gene action in the expression of these traits. Hence, selection would be effective for these traits in early generation itself.