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Effect of Trichoderma and Provax on Collar Rot and Stemphylium Blight of Lentil

Md. Abul Kashem
Plant Pathology Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh, Bangladesh

Fatema Islam
MS student (Plant Pathology)
Bangladesh Agricultural University, Mymensingh, Bangladesh

H. A. Begum
Plant Pathology Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh, Bangladesh

M. Ayub Ali
Professor
Department of Plant Pathology, Bangladesh Agricultural University, Mymensinh, Bangladesh

Abstract/ Executive Summary:

The experiment was conducted at Bangladesh Institute of Nuclear Agriculture (BINA) farm, Mymensingh and BINA sub-station farms, Magura and Ishurdi to control collar rot caused by Fusarium solani and Sclerotium rolfsii and stemphylium blight caused by Stemphylium sarciniformis and Stemphylium botryosum of lentil with Trichoderma harzianum (50 g per- m² soil) and Provax (0.3% of seed weight). T. harzianum showed better performance in seed germination (90.9-93.8%) against collar rot while in filled pods plant^-1 (47.9-137.6) and yield per m² (141.0 g) against collar rot and stemphylium blight. On the contrary, T. harzianum resulted the lowest seedling mortality (collar rot = 0.48%, stemphylium blight = 12.3-14.7%) and unfilled pods plant^-1 (2.0-6.6) over control against collar rot and stemphylium blight. Provax exhibited more or less similar performance to T. harzianum in all the mentioned parameters.

Keywords: T. harzianum, Provax, Collar rot, Stemphylium blight, Lentil

Location: Bangladesh Institute of Nuclear Agriculture farm, Mymensingh and BINA sub-station farms, Magura and Ishurdi

Start Date: 00-10-2011

End Date: 00-04-2012

Program Area: Pest Management

Commodity: Fungicide

Objectives:

To compare the efficacy of seed treatment with T. harzianum and Provax for controlling collar rot and stemphylium blight of lentil.

Methodology:

The experiment was conducted at Bangladesh Institute of Nuclear Agriculture farm, Mymensingh and BINA sub-station farms, Magura and Ishurdi following a randomized complete block design with three replications during October 2011 to April 2012. Binamasur-2 was used as susceptible variety to collar rot and stemphylium blight. The treatments were (i) Biocontrol agent (T. harzianum) (ii) Fungicide (provax) and (iii) Control. T. harzianum grown on pulse bran was mixed thoroughly with the soil @ 50 g per m². The seeds were treated with provax @ 0.3% of seed weight. Plants watered with sterilized water served as control. The soil of the experimental plots was well pulverized by six ploughing followed by laddering. The weeds and stubbles were removed from the field and the field was leveled properly before sowing. Fertilizers were applied according to BARI Hand Book, 2005 @ 45 kg Urea, 85 kg TSP and 35 kg MP ha^-1. One thousand eight seeds (120 seeds per line) were sown in 4 m × 3 m unit plot having 9 lines, on 17, 20 and 23 November at Mgura, Ishurdi and Mymensingh, respectively. The crop was harvested at pod maturity stage. Harvesting was done on 16, 19 and 20 March, 2012 at Magura, Ishurdi and Mymensingh, respectively. Data on germination and seedling mortality, yield and yield contributing characters of lentil were recorded against both diseases.

Source of Information: Bangladesh J. Nuclear Agric. 27 & 28: 95-101, 2013, ISSN-0258-7130

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Provax is a chemical fungicide. It has some adverse effect on environment. On the other hand T. harzianum is soil and environment friendly. Moreover, provax is costly than T. harzianum. T. harzianum has similar and sometimes more disease controlling and yield contributing character than provax. So, farmers can easily use T. harzianum as soil treatment at low cost for controlling collar rot and stemphylium blight of lentil.

Knowledge Management: Journal