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Investigate of Jute Corchorus Spp. for Tolerant/resistant to Apion (apion Corchori)

N.Islam
SO
Entomology Department,Pest Management Division,BJRI, Manik Mia Avenue, Dhaka-1207.

Abstract/ Executive Summary:

The experiment was conducted in the fields of Jaes, Rangpur, faridpur and Chandina following RCBD design with three replications. To find out sources of resistance/tolerance against apion. A total of 60 germplasm of Corchorus spp. were screened against apion in the fields of JAES, Rangpur, Faridpur and Chandina along with CVL-1 and 0-9897 as check varieties.The percent of apion infestation was lowest at Chandina than CRS Rangpur and Faridpur. The lowest bore/plant (1.20) was recorded in accession no. 1491 with 40% infestation at Chandina.

Keywords: Investigate, Resistance, Jute, Tolerance, Apion

Location: JAES,Rngpur,Faridpur,Chadina

Start Date: 30-03-2002

End Date: 30-11-2002

Program Area: Variety and Species

Commodity: Jute

Objectives:

To Identified sources of resistant or tolerant jute germplasms which was used to develop apion resistant/tolerant jute varieties.

Methodology:

A)Data on preliminary screening were recorded from the experimental plots/field of Gene Bank Department.B)Selected 50 accessions of Capsularis were sown in line of 2m long in the field of RCBD Design with three replications.No plant protection measures were taken to facilitated the build up of natural apion infestation.However, normal agronomic practice was followed for plant growth.Top shoot infestation was recorded in the seedling stage.Number of bore per plant and percentage of infestation was recorded at the time of harvest.

Records were kept:

1) Date of sowing

2) Name of variety or accession number

3) Number of top shoot attack

4) Number of apion bores/plant

5) Percentage of infestation

6) Identification of tolerance characteristics, if any

7) Seed was collected from resistant/ tolerant lines.

Source of Information: Annual report,2002, BJRI

Article Link (Online Journal):

Funding Source:

1. Government

Budget: Three thousand taka only

Total Budget (Tk.) : Three thousand taka only

Achievement/Findings:

The percent of apion infestation was lowest at Chandina than CRS Rangpur and Faridpur. The lowest bore/plant (1.20) was recorded in accession no. 1491 with 40% infestation at Chandina.

Knowledge Management: Report/Proceedings