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Integrated Management of Seed Borne Nematode (aphelenchoides Besseyi) in T. Aman Rice (oryza Sativa L.)

Md. Serajul Islam
Regional Laboratory, Soil Resource Development Institute, Comilla.

Md. Habibur Rahman
Central Laboratory, Soil Resource Development Institute, Krishi Khamar Sarak, Dhaka-I2l5

Md. Mohashin Farazi
Central Laboratory, Soil Resource Development Institute, Krishi Khamar Sarak, Dhaka-I2l5

A. T. M. S. Hossain
Regional Laboratory, Soil Resource Development Institute, Dhaka-I2l5

Ayesha Sultana
Lal Teer Seed Ltd., Gazipur, Bangladesh

Abstract/ Executive Summary:

Two experiments were conducted in the Nematology Laboratory of the Seed Pathology Centre and experimental field of the Department of Agronomy, Bangladesh Agricultural University (BAU), Mymensingh during 2004 to examine the influence of physical and chemical treatments on the seed borne nematode disease of rice. The integrated control with physical and chemical treatments against seed borne nematode (Aphelenchoides besseyi) causing white tip disease of rice varieties BR11 and Nizersial (T. Aman) rice revealed that farmer's saved seeds of both the varieties treated simultaneously with brine solution, hot water and Furadan 3G resulted in enhanced plant height, root length, panicle length, number of grains per panicle, total number of spikelet's per panicle, grain yield and lower association of seed borne nematode. Better responses were found with farmer's saved seeds treated with brine solution and hot water than field application of Furadan 3G, hot water treatment and treatment with brine solution having higher plant growth characters and yield of grains correspondingly with lower number of sterile and discolored spikelet's and seed borne nematode compared to the control.

Keywords: Seed borne nematode, T. aman rice, Integrated management

Location: Department of Agronomy, Bangladesh Agricultural University (BAU), Mymensingh

Start Date: 01-07-2004

End Date: 10-12-2004

Program Area: Pest Management

Commodity: Rice, Invertebrate, Nematocide

Objectives:

i) Examine the effect of physical treatment with brine solution (20% NaCl) and hot water on seed- borne Aphelenchoides besseyi

ii) Examine the effect of chemical treatment with Furadan-3 G on seed-borne Aphelenchoides besseyi

iii) Investigate the comparative effect of physical and chemical treatments either alone or in combination on the seed borne nematodes, its growth and yields of T. Aman rice.

Methodology:

The experiments were conducted both in the Nematology laboratory of the Seed Pathology Centre and experimental field of the Department of Agronomy, Bangladesh Agricultural University (BAU), Mymensingh, during 1^st July to 10^th December, 2004. Seed samples of a high yielding variety BRII and a local variety Nizersial were collected from individual farmers of village Boira under Sadar Thana of Mymensingh. For this, 100 seeds from each variety were taken randomly. By dehusking the seeds, different parts like empty glume, lemma, palea and grain were kept in small petridishes (2.5 cm) with (l0-12 ml) distilled water. The petridishes were left for 24 hours at room temperature for the nematodes, if any, to come out into the water. After 24 hours, all the petridishes were checked under stereo- binocular microscope and the number of the released nematodes were counted with the help counting dish. Two hundred fifty grams (250) of farmers saved seeds of the two varieties were taken for hot water treatment at 55° C for 10 minutes in hot water treating devices and were then taken for treating with brine solution (20% NaCl). Furadan 3G (carbofuran), 6g/plot @ 33kg/ha were applied at the time of final land preparation. Six treatments were laid out in a Factorial Randomized Complete Block design used in this study to see their effect on different growth and yield parameters as well as number of seed borne nematode, Aphelenchoides besseyi in two Aman varieties of rice BRII and Nizersial. The treatments are as follow: T₁= Farmers saved seed (control) T₂= Farmers saved seed soaked in brine solution (20% NaCl) T₃= Farmers saved seed treated with hot water at 55 ° c for 10 minutes. T₄= Application of Furadan 3 G in the main field at the time of final land preparation T₅= Farmers saved seed+ brine solution (20% NaCl) + hot water treatment T₆= Farmers saved seed+ brine solution (20% NaCl) + hot water treatment + Furadan 3G. Analysis of variance was done following Factorial Randomized Complete Block Design (RCBD) with the hilp of computer package MS STAT-C software developed by Russel. The mean differences among the treatments were evaluated with the help of LSD test and DMRT.

Source of Information: The Agriculturists I3( 1): 79-86 (2015), ISSN 2304-7321 (Online), ISSN 1729-5211 (Print)

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

This research was carried out with an integrated control approach applying physical and chemical means against seed borne nematode, Aphelenchoides besseyi. Farmers saved seeds + brine solution + hot water treatment+ Furadan 3G gave the highest response in relation to plant height, root and panicle length, number of grains per panicle, total number of spikelets panicle^-1 and yield of grain per m². Farmers saved seeds + brine solution + hot water treatment had comparatively better response in plant growth and yield characters with corresponding lower number of sterile spiklets panicle^-1, no. of discoloured spikelets panicle^-1 and no. of nematode population. Furadan 3G had better effect on plant growth and yield characters with corresponding lower number of nematodes as well as no of sterile spikelets panicle^-1 and no. of discoloured spikelets panicle^-1. It is concluded that treatments of farmers saved seeds + brine solution (20% NaCl) + hot water treatment (55 0 C for 10 minutes) + application of furadan 3G in the main field at the time of final land preparation would help greatly to minimize the loss of yield caused by seed borne nematode, Aphelenchoides besseyi in BRll and Nizersial rice commonly cultivated in the country.

Knowledge Management: Journal