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Screening of Jute Germplasm for Resistance/tolerance Against Yellow Mite.

A.S.M. Kamruzzaman
Senior Scientific Officer
Entomology Department,Pest Management Division,Bangladesh Jute Research Institute,Manik Mia Avenue,Dhaka-1207.

Hasina Banu
Principal Scientific Officer
Pest Management Division,Bangladesh Jute Research Institute,Manik Mia Avenue,Dhaka-1207.

Abstract/ Executive Summary:

The experiment was carried out with 46 accessions of olitorius and were sown in lines in the field set by Gene Bank Department at regional station, Rangpu during the year 2012 along with O-72 and O-9897 as check variety to select tolerant/resistant accession against yellow mite . Forty six accessions of olitorius were sown in lines in the field set by Gene Bank Department at regional station, Rangpur along with O-72 and O-9897 as check variety to select tolerant/resistant accession against yellow mite. Each line was 2m long and data were taken during the peak period (May-June) of infestation. Among the forty six accessions of olitorius, none of the accessions were found tolerant/resistant to yellow mite. However, only 24 accessions (1171, 1172, 1173, 1174, 1178, 1179, 1184, 1187, 1189, 1192, 1193, 1195, 1201, 1203, 1204, 1205, 1206, 1207, 1211, 1213, 1221, 1222, 1223 &1226) of olitorius showed lowest rating score ‘2’ .Percentage and intensity of infestation (rating) were taken till to death of top shoot. The intensity of damage by yellow mite was scored following 0-5 rating score.

Keywords: Jute, Accession, Yellow mite, Tolerance.

Location: Rangpur Regional Station and Entomology Department, Bangladesh Jute Research Institute, Dhaka.

Start Date: 01-03-2012

End Date: 31-12-2012

Program Area: Variety and Species

Commodity: Jute

Objectives:

1. To study the yellow mite resistant of some promising lines of Corchorus olitorius and select the best tolerant line to develop new yellow mite resistant variety of jute.

2. To reduce the use of pesticides and keep the environment pollution free.

Methodology:

The experiment was carried out with 46 accessions of olitorius and were sown in lines in the field set by Gene Bank Department at regional station, Rangpu during the year 2012 along with O-72 and O-9897 as check variety to select tolerant/resistant accession against yellow mite. Each line was 2m long and data were taken during the peak period (May-June) of infestation. Percentage and intensity of infestation (rating) were taken till to death of top shoot. The intensity of damage by yellow mite was scored following 0-5 rating score. Rating scores: 0- Fresh and healthy leaves, without any changes in color 1- Slight changes in color of leaves 2- Curling of leaves 3- 1 to 3 infested leaves dropped from the top 4- All infested leaves fall prematurely but top shoot alive 5- Top shoot dead

Source of Information: Annual Report-2012. Bangladesh Jute Research Institute.

Article Link (Online Journal):

Funding Source:

1. Government

Budget: 15,000/-

Total Budget (Tk.) : 15,000/-

Achievement/Findings:

Identified sources of resistant or tolerant jute germ plasm will be used to develop yellow mite resistant or tolerant jute varieties. It will be helpful to reduce the use of pesticides by the jute growers and keep the environment pollution free. Among the forty six accessions of olitorius, none of the accessions were found tolerant/resistant to yellow mite. However, only 24 accessions (1171, 1172, 1173, 1174, 1178, 1179, 1184, 1187, 1189, 1192, 1193, 1195, 1201, 1203, 1204, 1205, 1206, 1207, 1211, 1213, 1221, 1222, 1223 &1226) of olitorius showed lowest rating score ‘2’ .

Knowledge Management: Report/Proceedings