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Effect of Chemical Treatment for Controlling White Rot of Mustard

M.M.E. Rahman
Senior Scientific Officer
Plant Pathology Division, BARI, Gazipur

T. K. Dey
Chief Scientific Officer
Plant Pathology Division, BARI, Gazipur

Abstract/ Executive Summary:

Effect of seven different chemical treatments on disease incidence of white rot and yield of mustard were studied at OFRD, Rangpur during rabi season, 2010-2011. All the chemical treatments had significant effect on reduction of disease incidence as well as positive impact on yield of the crop compared to control. Considering both the disease incidence and yield of mustard, Tilt and Folicur were found better than others for controlling white rot of mustard.

Keywords: Mustard, White rot, Tilt, Folicur,Yield

Location: BARI, Gazipur

Start Date: 04-11-2010

End Date: 00-00-2011

Program Area: Pest Management

Commodity: Mustard

Objectives:

To evaluate the fungicides for controlling white rot of mustard.

Methodology:

The experiment was conducted at previously Sclerotinia infected field of OFRD,Rangpur during rabi season, 2010-2011. A susceptible cultivar BARI sharisha-14 were sown for the trial. The unit plot size was 3m X 2 m and seeds were sown in the date of 4 November, 2010 maintaining a spacing of 30 cm between rows. The crop was raised as per recommended agronomical practices. The experiment was carried out following Randomized Comlete Block Design with three replications. Seven fungicids of different groups like Bavistin (0.1%), Tilt (0.05%), Folicur (0.1%), Dithane M-45 (0.2%), Ridomil (0.2%), Contaf (0.1%) and Rovral (0.2%) were applied with the initiation of disease at 10 days interval. Data on percent disease incidence, yield contributing characters and plot yield were recorded. The recorded data were analyzed statistically to find out the level of significance and the variations among respective data were compared following Duncan’s New Multiple Range Test (DMRT).

Source of Information: Annual Report 2010-11, BARI

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Among the seven chemical treatments Tilt, Folicur and Rovral gave good results followed by Contaf and Bavistin. In case of disease incidence, statistically similar and lower infections were found from Tilt (3%), Folicur(3%) and Rovral (3.67%) treated plot. Highest disease incidence (24.33%) was found from control plot followed by Dithen and Ridomil treated plot. In fact, all chemical treatments had significant effect on reduction of disease incidence, yield contributing characters and yield of the crop compared to control. In terms of disease reduction of white rot Tilt and Folicur spray were best but considering yield, highest results (1.47 kg/plot) was obtained from Rovral treated plot. It seemed to be the combined effect on yield through management of Alternaria blight and White rot of mustard. Considering both the disease incidence and yield of mustard it was concluded that Tilt and Folicur were found better than others for controlling white rot of mustard.

Knowledge Management: Report/Proceedings