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Screening of Local and Exotic Brinjal Varieties/cultivars for Resistance to Brinjal Shoot and Fruit Borer, Leucinodes Orbonalis Guen

M. A. Mannan
Regional Agricultural Research Station, Jamalpur, Bangladesh.

A. Begum
BARI, Joydebpur, Gazipur.

M.M. Rahman
BARI, Joydebpur, Gazipur.

M.M. Hossain
Bangladesh Rice Research Institute, Joydebpur, Gazipur, Bangladesh.

Abstract/ Executive Summary:

An experiment was carried out with 24 brinjal varieties at the Regional Agricultural Research Station, Jamalpur Bangladesh to find the suitable resistant brinjal variety against brinjal shoot and fruit borer (BSFB), Leucinodes orbonalis Guen. Both in number and weight the brinjal varieties Jumki-I and Jumki-2 were highly resistant (RR), Islampuri-3, BL-34 and Muktakeshi were fairly resistant (FR), Singnath long and Singnath-4 were tolerant to brinjal shoot and fruit borer. The susceptible varieties were Islampuri-l and Irribegoon-I. Singnath-3 and Muktakeshi gave the highest yield from three years study and the lowest yield was obtained from Jumki although it was resistant to BSFB.

Keywords: Screening, Brinjal varieties, Leucinodes orbonalis Guen, Exotic and local verities

Location: Regional Agricultural Research Station, Jamalpur, Bangladesh

Start Date: 00-00-1995

End Date: 00-00-1997

Program Area: Variety and Species

Commodity: Brinjal

Objectives:

To screen several brinjal varieties for resistance to brinjal shoot and fruit borer.

Methodology:

The experiment was conducted in a Randomized Complete Block Design (RCBD) using 24 brinjal varieties with three replications at the Regional Agricultural Research Station, Jamalpur, Bangladesh during the period from 1995-96, 1996-97 and 1997-1998. The seedlings were raised in a seedbed. The land was prepared by ploughing and laddering and fertilized with organic manure such as cow dung @ 10 t ha^-1 7 days before final land preparation. The doses of chemical fertilizers were Urea 150 kg/ha, TSP 100 kg/ha and MP 150 kg/ha. The whole TSP and MP and 1/3 of Urea were applied during the final land preparation]. Rest of the Urea was applied in two splits - one at 30 DAP and other at 50 DAP. The individual plot size was 3.0 x 2.5 m². The seedlings were planted on 30^th September with spacing 80 cm in between lines and 60 cm in between plants. Irrigation and other cultural operations were done as and when necessary. The number of healthy and infested fruits per plot were recorded at each harvest. The percent infestation by number and weight were calculated. To study the variation in yield among brinjal varieties, the marketable yield (t ha^-1) were also recorded during the crop season. The data were statistically analyzed and means were separated by DMRT.

Source of Information: Pakistan Journal of Biological Sciences 6 (5): 488-492, 2003; ISSN 1028-8880

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

From the study it can be concluded that high yielding varieties are more susceptible to brinjal shoot and fruit borer and low yielding varieties are less susceptible to L. orbonalis. So the breeders and entomologists should come forward to utilize the genetic bases of resistance from a wild gene of cultivated brinjal varieties as well as non-cultivated BSFB resistant wild varieties of brinjal to develop brinjal varieties with desirable resistance, yield potential and consumable qualities through hybridization and selection. Out of the cultivars tested in the three years trial the Jumki exhibited the most tolerant to the pest brinjal shoot and fruit borer.

Knowledge Management: Journal