Thumbnail Image

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.

Browse

Reset filters
Subject: Crop Physiology × Author: POOJA, BHARTI × End date: 1959 ×
Reset filters

Search Results

Now showing 1 - 1 of 1
  • Thumbnail Image
    ThesisItemOpen Access
    CHARACTERIZATION OF TRAIT SPECIFIC RIL TO MAP QTL AND IDENTIFY SUPERIOR TRAIT INTROGRESSED LINES IN RICE (Oryza sativa L.)
    (University of Agricultural Sciences GKVK, Bangalore, 02-07-14) POOJA, BHARTI; SHESHSHAYEE, M S
    With the receding water availability, saving water from rice cultivation while sustaining productivity is essential. This necessitates development of rice cultivars suitable for semi-irrigated aerobic cultivation. Introgressing water acquisition and its efficient use for biomass production have been demonstrated to have great significance in improving productivity. Towards identifying superior trait introgressed lines, a mapping population comprising of 230 recombinant inbred lines developed by crossing Thanu (high WUE) and IET 15963 (high root) was phenotyped for variability in WUE based Δ13C, yield and spikelet associated traits under aerobic condition. The population was genotyped with 82 polymorphic SSR markers reported to be linked with yield under drought and other related traits. A genetic linkage map was constructed with a total of 115 which included 62 markers from a previous study. QTLs for important traits like yield under drought, WUE, roots and traits associated with spikelet fertility were discovered. The combined approach of previous association mapping and present linkage mapping lead to the identification of two common markers viz., RM180 and RM307 linked with Δ13C and root length, respectively. These markers can significantly enhance breeding efficiency while introgressing complex traits. Several transgressive segregants with improved root traits and WUE were identified. Graphical genotyping of these introgression lines with 115 markers revealed the integration of trait donor genomes. The performance of these selected transgressive segregants was significantly superior compared with the parental lines as evidenced by a grametric experiment. The investigation provided a proof of concept that introgression of root and WUE traits is essential for sustaining rice productivity while saving substantial amounts of water by growing them under semi-irrigated aerobic conditions.