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Management of Fusaurim Wilt of Tomato with Soil Amendments

Dr. Hosne-Ara Begum
Cheif Scientific Officer
Plant Pathology Division, Bangladesh Institute of Nuclear Agriculture (BINA), BAU Campus, Mymensingh, Bangladesh.

Dr. Md. Bahadur Meah
Professor
Department of Plant PathologyDivision, Bangladesh Agricultural UniversityMymensingh-2202

Abstract/ Executive Summary:

The study was conducted with seven treatments viz. (i) mustard oil cake (ii) groundnut oil cake (iii) soybean oil cake (iv) cow dung (v) their integration (vi) lime and (vii) untreated inoculated control as preventive and curative measure separately for the management of fusarium wilt of tomato during the winter season of 2010-11. The treatments were applied on two tomato varieties viz. Binatomato-2 and Pusaruby as preventive and curative measure. Among the treatments, groundnut oil cake was the most effective one with 10.04% and 22.08% disease index in pre (preventive) and post (curative) inoculation application of soil amendments, respectively. Application of integrated treatment as preventive (41.33%) and curative (38.62%) measure was the most effective one in increasing yield over control but was inferior to groundnut oil cake and mustard oil cake in reducing disease index and severity. Plant growths in terms of shoot length, root volume and root weight was benefited in all the treatments as compared to inoculated control.

Keywords: Soil amendments, Fusarium oxysporum f.sp. Lycopersici, Tomato

Location: Bangladesh Institute of Nuclear Agriculture (BINA)

Start Date: 15-10-2010

End Date: 15-03-2011

Program Area: Pest Management

Commodity: Tomato

Objectives:

To find out the effect of soil amendments like groundnut oil cake, soybean oil cake, mustard oil cake, lime and cow dung and their integration on index and severity of fusarium wilt of tomato.

Methodology:

Two separate experiments were set up as preventive and curative measure to find out the effect of soil amendments like oil cakes, cow dung, their integration and lime on the index and severity of fusarium wilt of tomato at Bangladesh Institute of Nuclear Agriculture (BINA) during the winter season of 2010-11. The experiments were laid out following two factors randomized complete block design with three replications. The factorial experiments consisted of two factors such as (a) soil amendments (b) varieties. (a) Seven treatments including control were as follows (i) lime (ii) soybean oil cake (SOC) (iii) groundnut oil cake (GOC) (iv) mustard oil cake (MOC) (v) cow dung (CD) (vi) integration of SOC, GOC, MOC and CD and (vii) control (untreated inoculated control). (b) Two varieties were Binatomato-2 and Pusaruby. The treatments were incorporated into the soil as powder at the rate of mustard oil cake 200 kg, groundnut oil cake 150 kg, soybean oil cake 200 kg and cow dung 5 ton per hectare. To raise the soil p^H to 7.0 required quantity of lime added to the soil was calculated as per guide of Agrivarsity Humbold Soil Testing Laboratory of Bangladesh Agricultural University (Anonymous, 2001).

As preventive measure, treatments (three oil cakes powder, cow dung and lime) were mixed in the upper 15 cm of the soil at 10 days before transplanting. Four week old nine seedlings of tolerant tomato variety Binatomato-2 or susceptible variety Pusaruby were transplanted in each plot. Conidial suspension (10⁷ CFU/ml) of the pathogen (150 ml plant^-1) was sprinkled around the seedlings (wounding roots) so that the suspension can reach at a depth of 15 cm of soil (Gangopadhyay, 1984) at 20 DAT.

As curative measure, treatments, the soils were first infested with the same concentration and dose of conidial suspension of the pathogen of preventive measure at 20 days before transplanting of tomato seedling. Soil amendments were applied to the rhizosphere soil of the tomato seedlings at 10 DAT. Percent disease index (PDI) and disease severity (DS) were recorded at 40, 55, 70 and 85 DAT.

Source of Information: Bangladesh J. Nuclear Agric. 29: 39-47

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Groundnut oil cake was the most effective one with 10.0% and 22.0% fusarium wilt index pre (preventive) and post (curative) inoculation application of soil amendments, respectively. Application of integrated treatment of mustard oil cake, groundnut oil cake, soybean oil cake and cowdung as preventive (41.4%) and curative (38.62%) measure was the most effective one in increasing yield over control. The result helps to develop eco-friendly management technique for fusarium wilt of tomato. The technique helps to increase yield of tomato.

Knowledge Management: Journal