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Study Control of Root-knot Nematode Disease by Different Type of Trap Crops

S.M.A. Haque
Scientific Officer
plant pathology Department,Pest Management Division, BJRI, manik mia avenue, Dhaka-1207.

Abstract/ Executive Summary:

Seeds of C. olitorius jute variety with different trap crops such as Sesbania, Safflower and Marigold were sown in line in nematode infested soil at JAES and Monirampur. Gall index was found less in jute plants where Safflower was used in lines as trap crop. Findings revealed that no gall formation was recorded in Safflower preceded by marigold (1.6%). Highest gall Index (5.0) was recorded in jute plant where no trap crop were used.Highest plant highest (2.82m) was recorded in jute plants where Sunhemp wereused as trap crop. Average fibre weight of 5 plants was 50gm where Sesbania was used and average stick weight of 5 plants was 108gm where Safflower was used as trap crop.

Keywords: Root-knot, Nematode,Trapcrop, Jute

Location: JAES, Manikganj

Start Date: 30-03-2007

End Date: 30-12-2007

Program Area: Pest Management

Commodity: Jute

Objectives:

1.To reduce nematode population in soil.

2.To avoid the harmful effect of chemical fungicides on environment

Methodology:

The experiment was conducted in the fields of JAES, Manikganj and Manirampur. Seeds of Olitorius variety O-9897 and Sesbania, Safflower,Marigold and Shanpat were sown in line following RCBD with three replications as trap crop in nematode infested soil at JAES, Manikganj and Monirampur. Each line was 3m long and with 3 replications. The seeds were sown on 25th April 2007. Stand data was recorded after 40 days of sowing. Five plants from each line were uprooted carefully and washed with water without disturbing the roots at the age of 90 days of the plants. The roots of each accessions were examined for gall formation.

Source of Information: Annual report, 2007, BJRI

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) : Five thousand taka only

Achievement/Findings:

No gall formation was recorded in Safflower preceded by marigold (1.6%). Highest gall Index (5.0) was recorded in jute plant where no trap crop were used.Highest plant highest (2.82m) was recorded in jute plants where Sunhemp wereused as trap crop. Average fibre weight of 5 plants was 50gm where Sesbania was used and average stick weight of 5 plants was 108gm where Safflower was used as trap crop.

Knowledge Management: Report/Proceedings