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Management of Virus Diseases of Watermelon Through Intercropping with Different Crops

M. Z. Rahman
Plant Pathology Division, BARI

B. L. Nag
Plant Pathology Division, BARI

Abstract/ Executive Summary:

The experiment was conducted at RARS, Rahmatpur, Barisal during 2014-2015. Management of virus diseases of watermelon was conducted by intercropping with different crops viz. Wheat, Maize, Millet, Sorghum and sole. From this experiment, it was found that intercropping with millet and wheat effectively controls the virus diseases of watermelon as well as increase the yield.

Keywords: Watermelon, Virus, Millets, Wheat

Location: RARS, Rahmatpur, Barisal

Start Date: 00-00-2014

End Date: 00-00-2015

Program Area: Pest Management

Commodity: Virus, Water melon

Objectives:

The study was undertaken to find out the effectiveness of different intercrops with watermelon for controlling of non- persistent virus diseases.

Methodology:

The experiment was conducted at Regional Agricultural Research Station, Rahmatpur, Barisal during , 2014-2015. The design was RCB having 3 replications. Variety was used Asian Hybrid-2. Sizes of the plots were 7.0 m x 7.0 m. The experiment was conducted under natural infection condition. Recommended doses of fertilizers (Cow dung 10 ton, Urea 200 kg, TSP 172 kg, MoP 247 kg, Zypsum 100 kg and Zinc sulphate 1.5 kg, Boric acid 10 kg per hectare) were used. The five treatments including control were viz T₁= Watermelon: Wheat, T₂= Watermelon: Maize T₃= Watermelon: Millet, T₄= Watermelon: Sorghum, T₅= Watermelon (Sole). Border crops were sown 26 November 2014 and water melon was sown 13 December 2014. Disease data were recorded weekly basis for four weeks after initiation of disease using 0-5 rating scale given by Xu et al (2004). Percent disease index (PDI) was computed from the final data, percent disease data (PDI) was computed on the basis of the formula according to Krishna Prasad et al., 1979 described as below:

Σ (Class rating X class frequency)

PDI = ------------------------------------------------------------------------------ X100

Total number of leaves counted X maximum rating value

Source of Information: Annual Research Report, Plant Pathology Division, BARI--2014-15

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Among the treatments Watermelon: Millet showed the lowest PDI (12.00 %) in Virus disease management and highest in control plot (63.43 %). Statistically similar PDI (17.73 %) was also observed in Watermelon: Wheat intercrop plots. The highest yield (25.21 t/ha was also observed in Watermelon: Millet plots. The lowest yield (16.12 t/ha was obtained from Watermelon:

From the findings of the present study, it was found that intercropping with millet and wheat can effectively control the virus diseases in watermelon.

Knowledge Management: Report/Proceedings