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

20211
Reset filters
Subject: Plant Pathology × Author: ADITYA, KUKRETI × Start date: 2019 × Type: Thesis × Thesis Type: M.Sc ×
Reset filters

Search Results

Now showing 1 - 1 of 1
  • Thumbnail Image
    ThesisItemOpen Access
    EXPLORING THE BIOCONTROL AND PLANT GROWTH PROMOTING POTENTIAL OF ENDOPHYTIC BACTERIAL STRAINS AGAINST PHYTOPATHOGENS OF RICE AND TOMATO
    (UNIVERSITY OF AGRICULTURAL SCIENCES, BANGALORE, 2021-11-19) ADITYA, KUKRETI; CHETHANA, B. S.
    Endophytes are plant endosymbionts with antagonistic, growth-promoting and the ability to induce systemic resistance. The characterized four bacterial endophytes viz., Bacillus velezensis strain P42, Bacillus pseudomycoides strain HP3d, Paenibacillus polymyxa strain PGSS1 and Bacillus velezensis strain A6 obtained from bacteriology lab, GKVK were evaluated against sheath blight (SB) (Rhizoctonia solani Kuhn) of rice and early blight (EB) (Alternaria solani Ellis and Martin) of tomato. Bacillus pseudomycoides strain HP3d and Bacillus velezensis strain A6 showed maximum mycelial inhibition of fungal pathogens of rice and tomato in in vitro. Rice (cv. Jyothi) and tomato (cv. Arka vikas) plants were treated with four endophytes by seed treatment (ST) @ 10ml/kg seeds, seedling dip (SD) and foliar spray (FS) @ 10ml/l of H2O individually and in combination. The treatment SD+ST+FS effectively reduced disease (SB and EB) intensity and considerably increased growth parameters under glasshouse conditions compared to control. In addition, it showed higher induction of defense related enzymes viz., polyphenol oxidase, peroxidase, superoxide dismutase and phenylalanine ammonia lyase on the fourth day in rice and the fifth day in tomato and low reduction in chlorophyll content than control after challenge inoculation of the pathogen. The four endophytes were positive for plant growth promoting attributes viz., ammonia production, siderophore production, IAA production and phosphorus production. In vivo evaluation revealed that all the tested endophytes significantly reduced intensity of sheath blight and early blight and increased the growth parameters and yield against untreated control and were comparable to fungicide treatment.