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Plant Pathology Journal
  Year: 2005 | Volume: 4 | Issue: 1 | Page No.: 85-90
DOI: 10.3923/ppj.2005.85.90
 
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Biological Control of Common Root Rot of Wheat (Bipolaris sorokiniana) by Trichoderma Isolates

M. Salehpour, H.R. Etebarian, A. Roustaei, G. Khodakaramian and H. Aminian

Abstract:
Trichoderma viride T112 and T. viride (MO), T. harzianum (M) and T. harzianum T194 were used as potential biological agent for control of common root rot caused by Bipolaris sorokiniana. Cell free and antifungal metabolites produced by all Trichoderma isolates inhibited growth of Bipolaris sorokiniana. The inhibition varied among isolates of Trichoderma and ranged from 58.20 to 93.93% using the cellophane overlay method and from 66.66 to 98.25% in volatile test. Mycelial growth of B. sorokiniana was numerically reduced more by T. viride T112 than the other isolate tested (p<0.01). The seed soaking treatment and also soil treatment with T. vride T112 and T. viride (MO) were the most effective in reducing infection by the pathogen compared with the corresponding control (p<0.01) All isolates of Trichoderma increased plant height, fresh and dry weight of roots and shoots of wheat seedling compared with the uninoculated control. Among Trichoderma isolates, T. viride T112 and T. viride (MO) proved to be the best in supporting the growth of wheat (p<0.01).
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How to cite this article:

M. Salehpour, H.R. Etebarian, A. Roustaei, G. Khodakaramian and H. Aminian, 2005. Biological Control of Common Root Rot of Wheat (Bipolaris sorokiniana) by Trichoderma Isolates. Plant Pathology Journal, 4: 85-90.

DOI: 10.3923/ppj.2005.85.90

URL: https://scialert.net/abstract/?doi=ppj.2005.85.90

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