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Use of Trichoderma in Biological Control of Foot and Root Rot of Lentil

Dr. M. A. Kashem
Principal Scientific Officer
Plant Pathology Division Bangladesh Institute of Nuclear Agriculture BAU Campus, Mymensingh-2202

Abstract/ Executive Summary:

A series of experiments were conducted to assess the effect of 14 isolates of Trichoderma spp. (Trichoderma harzianum and Trichoderma viride) for control of foot and root rot of lentil (Lens culinaris Medik) caused by Fusarium oxysporum schlecht. The pathogenicity of 12 isolates of Fusarium oxysporum and the mass production of an isolate of Trichoderma harzianum on 25 substrates were also studied. The isolates of Trichoderma spp. and Fusarium oxysporum were collected from different locations of Bangladesh. Trichoderma isolates inhibited the growth of Fusarium oxysporum from 45.87 to 92.07% at 7 days after inoculation on agar plates. The isolate TG-2 of Trichoderma harzianum showed the highest inhibition of the pathogen in field condition. The lowest foot and root rot incidence (6.9%), highest seed germination (82.08%), maximum plant stand (93.12%) and the highest seed yield (3726.67 kg ha^-1) were recorded in plots where the isolates TG-2 was applied. In pathogenicity test, the highest foot and root rot incidence and the lowest plant stand of lentil were recorded in the pots where soil inoculation with the isolate FBg-1 of Fusarium oxysporum was done. The highest colony foming unit (4.40 × 10⁶/g) of Trichoderma harzianum (TG-2) was recorded in chickpea bran. The study concluded that the isolate TG-2 of Trichoderma harzianum can be used to control foot and root rot disease of lentil in Bangladesh and chickpea bran is a useful substrate for mass production of that isolate for soil application

Keywords: Bio-control agen, Fusarium oxysporum, Soil-borne fungus

Location: Different districts of Bangladesh

Start Date: 20-06-2008

End Date: 30-09-2008

Program Area: Pest Management

Commodity: Lentil

Objectives:

To evaluate Trichoderma in controlling foot and root rot of lentil.

Methodology:

Fourteen isolates of Trichoderma collected from different location of Bangladesh were grown in different agrowastage and tested in controlling foot and root rot of lentil virto and field condition following used RCBD with three replications. The bran culture of Trichoderma were applied of different time and rate following the method of Vyas and Mathur 2002.

Source of Information: Int. J. Sustain. Crop Prod. 6(1):29-35 (Appril 2011)

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

In our study the evaluation of fourteen isolates of Trichoderma revealed that the isolate TG-2 can be used to control foot and root rot of lentil in Bangladesh.

Knowledge Management: Journal