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Screening of Potato Varieties Against Potato Cutworm (agrotis Ipsilon Hfn.)

M. R. U. Miah
Regional Agricultural Research Station Jamalpur.

M. Ahmed
Regional Agricultural Research Station Jamalpur.

M. Elias
Regional Agricultural Research Station Jamalpur.

Abstract/ Executive Summary:

A screening programme was undertaken to sort out potato variety against potato cutworm during 1989-90 and 1990-91 potato seasons. The per cent infestation of plant and tubers was the least in the variety Allard in both the seasons. Regarding tuber yields, Mondial was the highest yielding variety closely followed by Allard. Considering infestation of cutworm as well as tuber yields, the variety Allard may be regarded promising for commercial cultivation.

Keywords: Screening, Potato varieties, Potato cutworm

Location: Regional Agricultural Research Station, Jamalpur.

Start Date: 00-00-1989

End Date: 00-00-1991

Program Area: Variety and Species

Commodity: Potato

Objectives:

To sort out potato variety/varieties resistant to cutworm.

Methodology:

The experiment was conducted at the Regional Agricultural Research Station, Jamalpur during two potato seasons, 1989-90 and 1990-91. Seventeen potato varieties including fifteen Dutch origin and one each from English (Rocket) and Indian (Kufri Sindhuri). Randomized Complete Block Design with four replicates was followed. The unit plot size was 3.0m x 4.2m. The seed tubers were planted at 60 cm x 30cm spacing. Cultural operations were done as and when necessary. No insecticide was applied during the growing seasons and only Fungicide (Dithane M-45) was sprayed after emergence with 15 days interval to save the crop from late blight. The total number of plants cut by cutworm were recorded starting from the emergence of the crop upto 60 days of planting and the number of tubers infested by cutworm were counted during harvest. All the counts were converted to percentage of damage. Finally the yields of tuber per plot was recorded and converted into hectare yield.

Source of Information: Bangladesh Horticulture, Vol- 20 (1) , Pag: 113-115, 1992 (ISSN 0379-4288)

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Results the present experiment indicated that the minimum infestation of plants and tubers were observed in the variety Allard along with some other varieties and these varieties might be less susceptible. Though Mondial gave the highest yield, the infestation of cutworm was also very high in this variety. The yield of Allard was statistically identical to the Mondial and also less susceptible to cutworm.

Knowledge Management: Journal