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Evaluation of Groundnut Entries Against Jassid and Thrips

M.A. Monim
Oil Seed Research Centre, RARS, BARI, Ramatpur, Barisal

M.A. Quddus
Pulses Research Sub Station, BARI,

A.B.M.S. Islam
Soil Resource Development Institute, Jamalpur

D.J. Costa
RARS, BARI, Jamalpur

M.K. Hossain
Department of Agriculture Extension, Raninagar, Naogaon

Abstract/ Executive Summary:

The experiment was carried out at the field of the Oilseed Research Centre, Regional Agricultural Research station, Bangladesh Agricultural Research Institute (BARI), Ramatpur, Barisal during rabi seasons of 2007-2008 and 2008-2009 to evaluate the performance of some groundnut varieties/entries against jassids and thrips. Sixty groundnut entries of OT, PYT and RYT were evaluated against jassid and thrips infestation during 2008 and 2009. Of these, five entries of observation Trial (OT Set-1), four entries of (OT Set-2), five entries of PYT and five entries of RYT were found comparatively less jassid (5-9%, 8-11%, 5-9% and 7-11% leaf infestation) and thrips (3-4%, 4-5%, 2-4% and 4-6% leaf infestation) than the other entries and check variety BARI Chinabadam-8 and Dhaka-1 (15-22%, 22-20%, 12-19% and 18-12% leaf for jassid and7-9%, 9-8%, 6-8% and 10-7% leaf for thrips).

Keywords: Evaluation, Groundnut, Jassid, Thrips

Location: Oilseed Research Centre, Regional Agricultural Research station, Bangladesh Agricultural Research Institute (BARI), Ramatpur, Barisal

Start Date: 00-00-2007

End Date: 00-00-2009

Program Area: Variety and Species

Commodity: Ground nut

Objectives:

1. To evaluate the performance of some groundnut varieties/ entries against jassids and thrips.

Methodology:

The experiment was conducted in the field of the Oilseed Research Centre, Regional Agricultural Research station, Bangladesh Agricultural Research Institute (BARI), Ramatpur, Barisal during three rabi season of 2007-2008 and 2008-2009. The experiment was laid out in a randomized complete block design (RCBD) with three replications. The unit plot size was 3 m X 4 m. The spacing maintained for groundnut was 30 cm row to row and 10 cm seed to seed distances. Fertilizers were applied at 25-160-85-300-5-10 kg/ha of urea, triple supper phosphate, muriate of potash, gypsum, zinc sulphate and borax respectively, as recommended for Bangladesh (Anon, 2004). One half amount of urea and full dose of all other fertilizers were incorporated into the soil at the time of final land preparation. The remaining urea was top dressed in two equal installments at 35 and 65 days after sowing. During land preparation, cowdung was applied at 10 ton/ha. Intercultural operations, such as irrigation was given twice, weeding, mulching and earthing up were done as and when necessary. Seeds of groundnut were sown on 2nd week of December 2007 and 2008. Sixty groundnut entries of OT, PYT, RYT and ICRISAT lines were evaluated against jassid and thrips infestation. For evaluation of thrips damage, the total number of leaflets in five randomly sampled plants from the central two rows of a plot have been recorded and counted the number of leaflets showing thrips injury symptoms. Percent damage foliage for jasids was recorded by visual observations from the standing crop in natural field condition. Injury rating for both jassids and thrips on 1-9 scale supplied by ICRISAT. The leaf infestation was recorded on February 20, March 7 and 22, April 5, 20 and May 5 and 20 in2008 and 2009 at 15 days intervals at the vegetative, flowering and pod formation stages of the crop.

Source of Information: J. Agrofor. Environ. 4 (1): 151-153, 2010; ISSN 1995-6983

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The selected groundnut entries/varieties can be used as breeding program for developing suitable jassid and thrips tolerant groundnut varieties.

Knowledge Management: Journal