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Screening of Different Tomato Varieties in Saline Areas of Bangladesh

M.A. Siddiky
Department of Environmental Sciences, Jahangirnagar University, Dhaka, Bangladesh and Horticulture Research Centre, BARI, Gazipur-1701, Bangladesh

P.K. Sardar
On Farm Research Division, BARI, Khulna, Bangladesh

M.M. Hossain
On Farm Research Division, BARI, Khulna, Bangladesh

M.S. Khan
CSO (Ret’d), Soil Science Division, BARI, Gazipur-1701, Bangladesh.

M. Khabir Uddin
Department of Environmental Sciences, Jahangirnagar University, Dhaka, Bangladesh

Abstract/ Executive Summary:

A field study was conducted to screen out a number of Bangladeshi Tomato (Lycopersicon esculentum L.) varieties for salinity tolerance. Three levels of salinity were 2.0-4.0 dS m^-1, 4.1-8.0 dS m^-1 and 8.1-12.0 dS m^-1. Significant varietal and or salinity treatment effects were registered on plant height, leaf area, plant growth, yield, dry matter plant^-1, Na⁺ and Claccumulation in tomato tissues. Variety BARI Tomato 14, BARI Hybrid Tomato 5 and BARI Tomato 2 consistently showed superior biological activity at moderate salinity (4.1-8.0 dS m^-1), based on dry matter biomass production thus displaying relatively greater adaptation to salinity. Under saline condition, all plant parameters of tomato varieties were reduced compared to the control except number of fruits of BARI Tomato 14, BARI Hybrid Tomato 5 and BARI Tomato 2. Thus, BARI Tomato 14, BARI Hybrid Tomato 5 and BARI Tomato 2 can be regarded as a breeding material for development of new tomato varieties for tolerance to salinity in saline areas of Bangladesh.

Keywords: Tomato Varieties, Salinity and Screening

Location: The field experiment was conducted in the farmer’s field at three dispersed locations, Agricultural Research Station, BARI, Khulna

Start Date:

End Date:

Program Area: Risk Management in Agriculture

Commodity: Tomato

Objectives:

To evaluate the ability of ten varieties of tomato for growing under different saline conditions and screen them for salinity tolerance.

Methodology:

The field experiment was conducted in the farmer’s field at three dispersed locations, Agricultural Research Station, BARI, Khulna, in a naturally salt affected soil to screen out the performance of salinity tolerant varieties of tomato. The treatment consisted of three salinity levels 2.0-4.1, 4.1-8.0 and 8.1-12.0 dS m^-l and tomato varieties viz. BARI Tomato 2, BARI Tomato 3, BARI Tomato 4, BARI Tomato 8, BARI Tomato 9, BARI Tomato 11, BARI Tomato 14, BARI Hybrid Tomato 3, BARI Hybrid Tomato 4, and BARI Hybrid Tomato 5. The experiment was laid out in randomized complete block design with three replications. The unit plot size was 2m x 3m. Thirty day old seedlings were transplanted in 20-30 November, 2010. Tomato production technology such as fertilizer and pest management, intercultural operations were done properly. Data were taken on different yield parameters like plant height, number and weight of fruits plant^-1, root fresh weight, relative green mater value in youngest fully expanded leaves, leaf area plant^-1, and biomass of root and shoot. Na+ and Cl^- concentration were also measured from dry mater of plant. Relative green mater value was measured with Minolta SPAD-502 chlorophyll meter. Statistical analysis of the data was performed and the means were compared at 5% probability level.

Source of Information: ISSN: 2224-0616 Int. J. Agril. Res. Innov. & Tech. 2 (1): 13-18, June, 2012 Available online at http://www.ijarit.webs.com

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Soil salinity is a major constraint to economic use of land for agriculture especially in the coastal regions of Bangladesh. The results of the present study showed that fruit yield of tomato were reduced by increasing salinity. Low salinity gave better results for most plant parameters and as salinity increased there was a reduction in plant growth and yield. Variety BARI Tomato 14, BARI Hybrid Tomato 5 and BARI Tomato 2 showed an optimistic response to saline agriculture by producing more yield under slight and moderate saline conditions. Hence, variety BARI Tomato 14, BARI Hybrid Tomato 5 and BARI Tomato 2 can survive and produce good yield in coastal fields of Bangladesh.

Knowledge Management: Journal