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Effect of Two Organic Amendments and a Nematicide for Controlling Root-knot Nematode (meloidogyne Incognita) on Country Bean

Iqbal Faruk
Senior Scientific Officer
Plant Pathology Division, BARI, Bangladesh

Murshed Hasan Mustafa
Deputy Director
Bangladesh Rural Development Board, Dhaka, Bangladesh.

Topan Kumar Dey
Chief Scientific Officer
Plant Pathology Division, BARI, Bangladesh.

Abstract/ Executive Summary:

A field experiment was conducted with a view to test the efficacy of Poultry refuse (PR), Mustard oil cake (MOC) and the chemical nematicide, Furadan 5G (Carbofuran) for controlling root knot nematode, Meloidogyne incognita on country bean , Dolichos lablab var. BARI Shem-2. The root-knot nematode, Mincognita - infested soil was treated with PR (3 and 5 t/ha), MOC at the rates of 0.3 and 0.6 t/ha 3 weeks before seed sowing and Furadan 5G at the rate of 40 kg/ha was applied to soil before (at the same time of?) seed sowing of country bean. All the treatments performed well in reducing root-knot infestation and in increasing plant growth compared to control. The most effective treatment was PR @3 t/ha) + Furadan 5G @20 kg/ha followed by PR alone (5 t/ha). In the first year and the second year, gall index values were 9.50 and 9.33 galls in control, respectively. The severity of root-knot disease was reduced by 2.50 to 5.98 galls in the first year and by 3.93 to 6.60 galls in the second year. Fruit yield was increased over control by 21.93 to 46.37% with the maximum increase by PR (5 t/ha) in the first year and by 16.67 to 43.37% with the maximum increase by PR (3t/ha) + Furadan 5G (20 kg/ha) in the second year. The fruit yield of country bean was directly and linearly correlated with gall indices. Based on findings of the study, PR (3 t/ha) + Furadan 5G (20 kg/ha) and PR alone (5 t/ha) were noted as the most effective treatments to manage root-knot disease and to maximize yield of country bean.

Keywords: Poultry refuse, Mustard oilcake, Furadan, Meloidogyne incognita, Dolichos lablab

Location: Bangladesh Agricultural Research Institute, Gazipur, Bangladesh

Start Date: 00-00-2007

End Date: 00-00-2009

Program Area: Pest Management

Commodity: Country bean

Objectives:

To test efficacy of poultry refuses, mustard oilcake and Furadan 5G to manage root-knot nematode infestation of country bean.

Methodology:

Management of root-knot nematode disease (Meloidogyne incognita) on country bean Dolichos lablab variety BARI Shem-2 with different combinations and rates of two commonly available organic amendments namely mustard oil cake (MOC) and poultry refuses (PR)and the nematicide, Furadan 5G (Carbofuran) was studied. The experiment was conducted at Bangladesh Agricultural Research Institute (BARI), Gazipur, Bangladesh during 2007-08 and 2008-09 cropping years. A total of 8 treatments viz. (i) control, (ii) Furadan 5 G (40 kg/ha), (iii) poultry refuse @ 5 t/ha, (iv) poultry refuse @ 3 t/ha, (v) poultry refuse @ 3 t/ha+ Furadan 5 G (20 kg/ha), (vi) mustard oilcake @ 0.6 t/ha, (vii) mustard oil cake @ 0.3 t/ha, (viii) mustard oilcake @ 0.3 t/ha+ Furadan 5 G @20 kg/ha) were maintained in this experiment. The experiment was laid out in a randomized complete block design (RCBD) with three replications for each treatment where unit plot size was 3 m x 3 m keeping 1m distance between plots and each plot was consisted of four pits. Standard cultivation procedures recommended by BARI were followed to grow country bean. The experimental field was well prepared with power tiller and fertilizers were added during final land preparation. Requisite quantities of fresh poultry refuse and mustard oil cake were added in the soil 3 weeks before seed sowing of country bean and allowed to decompose completely. The nematicide, Furadan 5G was applied to the soil before seed sowing ?. To ensure inocula of the nematode, tomato and lady’s finger roots heavily infected with M. incognita (Mention method of nematode identification) were collected from infested bed, chopped into small pieces and mixed with soil @ 20 g/pit. The country bean seeds variety BARI Shem-2 were sown in the pits and each pit was sown to 10 seeds including 5 additional seeds. During crop season, necessary weeding, irrigation and other intercultural operations were done as per recommendation of the crop. The root-knot disease severity was recorded twice i.e. one at 60 days after seed sowing and the other after final harvesting of country bean. Five additional plants in each pit were carefully uprooted after 60 days of seed sowing and c root system was cleaned by washing with tap water. Data on shoot length (cm), shoot weight (gm), root length (cm) and root weight (gm) were recorded. The severity of root-knot disease was recorded as gall index in 0-10 scale according. The yield data were recorded on the weight of fruit/plot. The collected data were analyzed statistically (Name of test) and the means were separated by DMRT at p=0.05 level.

Source of Information: American-Eurasian J. Agric. & Environ. Sci., 12 (5): 608-615, 2012, ISSN 1818-6769

Article Link (Online Journal): http://www.idosi.org/aejaes/jaes12%285%2912/9.pdf

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The application of PR (3 t/ha) in combination with Furadan 5G (20 kg/ha) or PR alone (5 t/ha) effectively controlled root-knot nematode disease and increased plant growth as well as yield of country bean. Therefore, these might be recommended for controlling root-knot of country bean.

Knowledge Management: Journal