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Screening of Kenaf and Mesta Germplasm for Resistance Against Spiral Borer and Mealy Bug

A.K.M. Faruquzzaman
CSO
Entomology Department , Pest Management Division.Bangladesh Jute Research Institute(BJRI) .Manik Mia Avenew,Dhaka-1207

Rafiqul Islam
CSO
Entomology Department , Pest Management Division.Bangladesh Jute Research Institute(BJRI) .Manik Mia Avenew,Dhaka-1207

Md. Shahin Polan
SO
Entomology Department , Pest Management Division.Bangladesh Jute Research Institute(BJRI) .Manik Mia Avenew,Dhaka-1207

Abstract/ Executive Summary:

The experiment was conducted at Manikganj Station of Bangladesh Jute Research Institute (BJRI) during the year 2011 . Spiral borer and mealy bug are two major insect pests of kenaf and mesta .Screening programme was undertaken to find out sources of resistance in kenaf and mesta germplasm against spiral borer and mealy bug. . Twenty two accessions of kenaf with two check varieties HC-95 and HC-2 were screened against spiral borer and mealy bug. Among the 22 accessions tested in the field of Pakhimara 4 lines (2077, 5027, 5028 and 5029) were found completely free from spiral borer and 19 lines (2046, 2047, 2049, 2050, 2052, 4336, 4339, 4392, 4622, 4623, 4816, 4822, 5025, 5026, 5027, 5028, 5029, 5032 and 5033) were found completely free from mealy bug. Only 3 lines (5027, 5028 and 5029) were found free from both the insects.

Keywords: Jute, Screening, Resistance, Spiral borer, Mealy bug

Location: Central station, Dhaka

Start Date: 30-03-2011

End Date: 30-12-2011

Program Area: Pest Management

Commodity: Mesta, kenaf

Objectives:

1.To find out and identify resistance germ plasm of kenaf and mesta against spiral borer and mealy bug.

2. To help the breeder for developing new resistant variety of kenaf and meata against spiral borer and mealy bug.

Methodology:

The experiment was conducted in the Entomology laboratory of Bangladesh Jute Research Institute( BJRI), Dhaka and at Pakhimara, Patuakhali.during the year 2011. Twenty two accessions of kenaf with two check varieties HC-95 and HC-2 were screened against spiral borer and mealy bug. Data were collected from the experimental field of Gene Bank Department at Pakhimara, Patuakhali. ).Seeds will be shown in line with three replications. The recommended package of agronomic practices for Mesta cultivation will be followed from sowing onwards. The target pests will adopt no plant protection measure with a view to facilitate maximum infestation of insect. Observation regarding percent of plant infestation (PPI) and amount of plant damage (APD) will be recorded during the infestation period from the plots as per following formula.

Source of Information: Annual Report, 2011-12

Article Link (Online Journal):

Funding Source:

1. Government

Budget: Twenty thousand taka only

Total Budget (Tk.) : Twenty thousand taka only

Achievement/Findings:

Resistance or tolerance germ plasm will be helpful for the breeder to develop resistant/tolerant varieties of kenaf and mesta which will be useful for the farmers and the country will be benefited. Among the 22 accessions tested in the field of Pakhimara 4 lines (2077, 5027, 5028 and 5029) were found completely free from spiral borer and 19 lines (2046, 2047, 2049, 2050, 2052, 4336, 4339, 4392, 4622, 4623, 4816, 4822, 5025, 5026, 5027, 5028, 5029, 5032 and 5033) were found completely free from mealy bug. Only 3 lines (5027, 5028 and 5029) were found free from both the insects.

Knowledge Management: Report/Proceedings