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Host Resistance Against Root-knot Diseases ( Meloidogyne Sp.)

S.M.A. Haque
Scientific Officer
PLant Pathology Department, Pest Management Division, BJRI, Manik Mia Avenue, Dhaka-1207

M.M Islam
P.S.O
PLant Pathology Department, Pest Management Division, BJRI, Manik Mia Avenue, Dhaka-1207.

Q.M. Mosaddeque Hossen
SO
PLant Pathology Department, Pest Management Division, BJRI, Manik Mia Avenue, Dhaka-1207.

Abstract/ Executive Summary:

The experiment was conducted in the field of JAES, Manikganj following RCBD with three replications to find out sources for tolerant/resistant against nematode disease( Meloidogyne sp). Fourteen Capsularis accessions ( 2134, 2137, 2138, 2139,2141,2143, 2145,2147, 2149,2150, BJC-2142, BJC-7370, 2407 and 2419) with one check varieties CVL-1 and fifteen Olitorius accessions ( 2433, 2441,2478, 2481, 2483, 2496, 2497, 2499, 3820, 2601, 2043, 2712, 2731, 2732 and 2727) with one check varieties (O-72) were screened in nematode infested soil at JAES, Manikganj. Out of 31 lines, only 2 Capsularis accessions 2147, 2419 and 3 Olitorius accessions 2478, 2481, 2496 were found resistant.

Keywords: Resistant, Root-knot,Host

Location: JAES, Manikganj

Start Date: 15-04-2007

End Date: 30-11-2007

Program Area: Pest Management

Commodity: Jute

Objectives:

1.To find out germplasms against root-knot diseases.

2.To help the breeders to develop the resistant varieties against root-knot

Methodology:

1) The plants were sown in sterilized soil and was inoculatd with pure culture of Meloidogyne sp. at proper age of the plant. 2) Preparation of inoculation: Tomato plants previously were grown in nematode free soil was inoclated by adding nematode infected roots of jute. After 60 days, egg mass of nematodes were collected from tomato root and incubated in a watch glass at 25^oC 3) Selected germplasm materials were inoculated with the newly hatches larvae suspended in sterilized water ( 50 larvae/ml). Each plant was inoculated with 20 ml of this suspension.Following records were kept: 1) Date of sowing of tomato plants 2)Date of sowing of germination materials 3) Date of inoculation 4) Observation of root-system of each material for gall formation time to time.

Source of Information: Annual Report,2007

Article Link (Online Journal):

Funding Source:

1. Government

Budget: Five thousands taka only

Total Budget (Tk.) : Five thousands taka only

Achievement/Findings:

Fourteen Capsularis accessions ( 2134, 2137, 2138, 2139,2141,2143, 2145,2147, 2149,2150, BJC-2142, BJC-7370, 2407 and 2419) with one check varieties CVL-1 and fifteen Olitorius accessions ( 2433, 2441,2478, 2481, 2483, 2496, 2497, 2499, 3820, 2601, 2043, 2712, 2731, 2732 and 2727) with one check varieties (O-72) were screened in nematode infested soil at JAES, Manikganj. Out of 31 lines, only 2 Capsularis accessions 2147, 2419 and 3 Olitorius accessions 2478, 2481, 2496 were found resistant.

Knowledge Management: Report/Proceedings