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International Journal of Agricultural Research
  Year: 2006 | Volume: 1 | Issue: 6 | Page No.: 590-596
DOI: 10.3923/ijar.2006.590.596
 
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Dry Preparation of Trichoderma harzianum for Controlling Rhizoctonia damping-off in Brassica rapa
I.M., Daghman , M. Sariah , J., Kadir , M.A.Zainal Abidin and A.B. Rosenani

Abstract:
Preparation of Trichoderma harzianum (UPM40) with compost (OPTCD) as the food-base carrier was evaluated for the control of Rhizoctonia damping-off in leaf mustard (Brassica rapa L). Seeds sown in Rhizoctonia-infested soil treated with UPM40 dry preparation and fungicide (Brassicol®) gave significantly higher seedling emergence. The losses in emergence were only 2.83 and 3.71%, respectively, as compared to 21.99% in the untreated soil. The Disease Incidence (DI) expressed as the Area Under the Disease Progress Curve (AUDPC) was highest for the seedlings in the untreated soil and lowest for the seedlings in the UPM40- and fungicide-treated soils. The local isolate T. harzianum (UPM40) dry preparation was therefore effective in protecting the seeds and seedlings of B. rapa against R. solani pre- and post-emergence damping-off. No significant differences in the mean dry weights between the Trichoderma- and chemically-treated soils were observed in the Rhizoctonia-infested soils. However, in the non-infested soils, the mean dry weight of plants was significantly higher for the treatment with UPM40 (23.88 g) followed by that with fungicide (20.88 g) and then the control (16.78 g).
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How to cite this article:

I.M., Daghman , M. Sariah , J., Kadir , M.A.Zainal Abidin and A.B. Rosenani , 2006. Dry Preparation of Trichoderma harzianum for Controlling Rhizoctonia damping-off in Brassica rapa. International Journal of Agricultural Research, 1: 590-596.

DOI: 10.3923/ijar.2006.590.596

URL: https://scialert.net/abstract/?doi=ijar.2006.590.596

 
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