Characterization and rhizosphere competence of Trichoderma spp. in different cropping systems of Chitoor district (A.P.)

Authors

  • A. RANGA RANI, S. KHAYUM AHAMMED*, A.K. PATIBANDA and R. SARADA JAYALAKSMHI DEVI

Keywords:

Aspergillus niger, Fusarium oxysporum, Rhizosphere competence, Trichoderma spp.

Abstract

Nine isolates of Trichoderma were isolated from different cropping systems (Groundnut, Tomato and Redgram) of Chittoor district (A.P) and were characterized based on growth rate, GRT-2, GRT-3, RRT-2 and TRT-2 were categorized as very fast growing; GRT-1, RRT-1 and TRT-1 as fast growing and GRT-4, GRT-5 as medium growing. In dual culture GRT-3 found as best antagonist against A. niger (Incitant of collar rot in groundnut) and F. oxysporum (Incitant of wilt in redgram). In case of rhizosphere colonization of GRT-3 in groundnut, redgram and tomato crops found as best upto 15 days after sowing. Highest rhizospheric colonization was found in redgram plant, i.e. 28 and 35 x 108 cfu/g of soil in both natural and autoclaved soil respectively followed by tomato and groundnut.

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How to Cite

A.K. PATIBANDA and R. SARADA JAYALAKSMHI DEVI, A. R. R. S. K. A. (2016). Characterization and rhizosphere competence of Trichoderma spp. in different cropping systems of Chitoor district (A.P.). Indian Phytopathology, 69(4s), 506-509. http://epubs.icar.org.in/ejournal/index.php/IPPJ/article/view/71379