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Field Screening of Some Ginger Genotypes for Resistance to the Rhizome Fly, Mimegraua Coeruleifrons (diptera: Micropezidae)

S Jui
Department of Entomology, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh

M Z Alam
Departm ent of Entomology, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh

M N Islam
Departm ent of Entomology, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh

M A K Mian
Dept. of Genetics and Plant Breeding, BSMRAU, Gazipur 1706, Bangladesh

AM Akhanda
Dept. of Plant Pathology, BSMRAU, Gazipur 1706, Bangladesh

Abstract/ Executive Summary:

An experiment with 18 genotypes of ginger was conducted in the experimental field of Department of Genetics and Pl ant Breeding, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur during the period from April 2005 to March 2006 for screening the genotypes against the Stilt legged rhizome fly. Mimegralla coeruleiji-ons (Diptera: Micropezidac). The result. of the experiment indicated that the gmger shoot infestation and the ginger rhizome infestation due to rhizome fly were significantly lowest in genotype Ginger-12 with little higher infestation found in Ginger-2. Ginger- 10. Ginger-15, Ginger-16. Ginger- 17 and Ginger- 19. The intensity of rhizome infestation interms of the length and breadth of tunnel made by rhizome fly was significantly lowest in Ginger-12 with little higher length and breadth of tunnel found in Ginger- IX and Ginger-15. The weight of healthy rhizome was the highest in !he genotype Ginger-3 followed by Ginger- 11. Ginger-6. Ginger-8. Ginger-10 and Ginger- 12 with highest yield in Ginger- 12 followed by Ginger 11. Ginger- I0 and Ginger-6. Considering the above the genotypes Ginger-12 Gniger-2. Ginger- 10. Ginger-11, Ginger- 17 . Ginger- I6, Ginger- 15 and Ginger-18 were found to be relative resistant against the Stilt-legged rhizome fly) .

Keywords: Ginger, Rhizome flly, Resistance

Location: Department of Entomology, Bangabandhu Sheikh Mujibur Rahman Agricultural University

Start Date: 01-04-2005

End Date: 30-03-2006

Program Area: Pest Management

Commodity: Insects

Objectives:

To evaluate the susceptibility or resistance of some ginger genotypes against rhizome fly in the field as well as to study yield performance of dif ferent ginger genotypes attacked by rhizome fly.

Methodology:

A n experiment with 18 genotypes of ginger was conducted in the experimental field of Department of Genetics and Plant Breeding, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh during the period from April 2005 to March 2006 for screening the genotypes against the Stilt legged rhizome fly (Mimegralla coeruleifrons). To identify the resistance/su sceptibility against the rhizome fly, 18 genotypes of ginger were tested. The genotypes were Ginger-1 (Sripur, Gazipur), Ginger-2 (Rangam ati), Ginger-3 (Chittagong), Ginger-4 (lndia-1), Ginger-S (lndia-JJ), Ginger-6 (Mymensingh), Ginger-7 (India-Ill), Ginger-8 (Mirzapur, Gazipur), Ginger-9 (Chin a-f), Ginger-10 (China-II), Ginger-II (China-III), Ginger-12 (Sierra Leone), Ginger-13 (Japanese-1), Ginger-15 (Rangamati-1), Ginger-16 (Rangamati-2), Ginger-1 7 (Rangamati-3), Ginger-18 (Hath azari), and Ginger-19 (Khagrachori). The experiment was designed in RCBD with 3 replications. Line to line distance was 30 cm and plant-to-plant distance was 15 cm. The distance between plot-to-plot and block-to-block was 30 cm and 100 cm respectively. During the experimental period normal cultivation procedures such as manure and fertilizer application , mulching, weeding and irrigation were followed. The data were recorded at tillering and harvesting stage. Data recorded were percentage of infested shoots and healthy shoots, percentage of healthy rhizomes and infested rhizomes, the length and breadth of tunnel made by rhizome fly and finally weight per healthy rhizome and total yield at harvest. The data were analyzed statistically using MSTAT software and mean s were separated by Duncan 's Multiple Range Test.

Source of Information: Ann. Bangladesh Agric. (2007) 11(1): 113- 12-1

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Considering the above parameters. the genotypes Ginger-12, Ginger-2, Ginger-10, Ginger-11 , Ginger-17, Ginger-19, Ginger-16, Ginger-15 and Ginger-18 were found to be relatively tolerant against the rhizome fly and the weight of healthy rhizome was the highest for the genotypes of Ginger-3, Ginger- 11, Ginger-6 , Ginger- 8, Ginger- I0 and Ginger-12. The genotype of Ginger-12 provided the highest yield. The second highest significant yield was obtained in Ginger-11 followed by Ginger-10 and Ginger-6.

Knowledge Management: Journal