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Role of Bio Control Agent for the Management of Foot and Root Rot Disease of Cabbage

M. R. Humauan
Scientific Officer
RARS, Ishurdi, Pabna

K. M. Khalequzzaman
Senior Scientific Officer
RARS, Ishurdi, Pabna

B. Akhter
Scientific Officer
RARS, Ishurdi, Pabna

Abstract/ Executive Summary:

The experiment was conducted at RARS, Ishurdi, Pabna during 2009-10 to find out the effect of bio control agent against foot and root rot of cabbage. The lowest foot and root rot incidence (4.20 %) was recorded in Soil amendment with Trichooderma harzianum compost (1.0 t/ha) treated plots and the highest (22.92%) was recorded in control. The yield ranged from 58.88 to 96.84 t/ha, the highest and lowest yields were recorded in soil amendment with Trichooderma harzianum compost (1.0 t/ha) and untreated control, respectively

Keywords: Trichooderma harzianum, Compost, Cabbage, Foot and root rot

Location: RARA, Ishudi

Start Date: 00-00-2009

End Date: 00-00-2010

Program Area: Pest Management

Commodity: Diseases

Objectives:

To find out the effective bio-control agent against foot and root rot disease of cabbage.

Methodology:

The experiment was conducted at the RARS, Ishurdi, Pabna during rabi season 2009-10. Local variety was used in this experiment. The seeds were sown on October 12, 2009 and transplanted in the main field on November 12, 2009. The experimental design was RCBD with three replications. The unit plot size was 2.5mX1.5m and spacing was 60cmX40cm. Six treatments were T₁ = Soil amendment with Trichooderma harzianum compost (1.0 t/ha), T₂ = Soil amendment with Trichooderma viridae compost (1.0 t/ha), T₃ = Soil amendment with Arbuscular mycorrhizal fungi (1.0 t/ha), T₄ = Spaying with spore suspension of Trichooderma harzianum at foot region (1:5), T₅ = Spaying with spore suspension of Trichooderma viridae at foot region (1:5) and T₆= Control. Fertilizers and manures were applied as per recommendation. Irrigation and other cultural practices were performed as and when necessary. Data were recorded on Foot and root rot (%), Length of curd (cm), Diameter of curd (cm), Yield / curd (kg) and yield (t/ha). The recorded data were analyzed statistically to find out the level of significance and the variations among the respective data. Treatment means were compared following Duncan’s New Multiple Range Test (DMRT).

Source of Information: Annual Report 2009-10, BARI

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

All the bio-control agent significantly reduced the disease as compared to control. The highest foot and root rot (22.92 %) was obtained from control plots while the lowest (4.20%) was obtained from the plots soil amendment with Trichooderma harzianum compost (1.0 t/ha). Disease reduction over untreated control ranged from 44.45 – 81.67 %, where the highest reduction was recorded in soil amendment with Trichooderma harzianum compost (1.0 t/ha) and the lowest was in soil amendment with Arbuscular mycorrhizal fungi (1.0 t/ha). All the treatments showed significant effect on disease development and yield attributes. Length per curd varied from 14.33 to 17.44 cm, the highest was found in soil amendment with Trichooderma harzianum compost (1.0 t/ha) treated plots and the lowest was in control plots. Significantly highest diameter per curd (22.55 cm) was observed in soil amendment with Trichooderma harzianum compost (1.0 t/ha) and the lowest (17.67 cm) was in control plots. Yield per curd ranged from 1.59 – 2.51 kg, where the highest was recorded in soil amendment with Trichooderma harzianum compost (1.0 t/ha) and the lowest was in control plots.The highest yield (96.84 t/ha) was recorded in soil amendment with Trichooderma harzianum compost (1.0 t/ha) and the lowest (58.88 t/ha ) was recorded in control plots.

Knowledge Management: Report/Proceedings