Agricultural Research Management Information System

Home
Research Summary
Search
About Us
- ARMIS
- Brochure
Contact Us
Report
User Request
Data Input
Help
- Operation Manual
  - PDF
  - Video
- Program Area & Commodity
We have reached 37600 number of research entries at this moment.

- Logout

Research Detail

Home
Research
Detail

Evaluation of Wheat Germplasm Against Salinity

Farida Begum*
Agronomy Division, BARI, Joydebpur, Gazipur

M. Saifuzzaman
WRC, BARI, Gazipur, Bangladesh

W. Sultana
Agronomy Division, BARI, Joydebpur, Gazipur

Abstract/ Executive Summary:

Fifteen wheat lines/ varieties were tested under artificial saline environment in the year 2006-07 for the study of salt tolerance. Four salinity gradients, 0.38, 3.76, 8.8 and 12.0 dS-m were used. Seedling emergence, plant height and crop yield were found to be affected by salinity gradient. The varieties/lines Gaurav, Shatabdi, Sufi, Bijoy. CB-38, CB-60 and CB-78 showed better performance as evaluated on the basis of plant height, yield and yield components. These lines can thus be selected for further investigation in the coastal saline areas. The decrease in growth as attributed to the accumulation of salinity induced increase in Na+ and decrease in K+ content. This decrease in growth ultimately caused a decrease in yield.

Keywords: Wheat, Salinity, Crop yield, Na+ , K+ content.

Location:

Start Date:

End Date:

Program Area: Variety and Species

Commodity: Wheat, Soil salinity

Objectives:

For successful cultivation, salt tolerant lines/varieties need to be selected. Screening of wheat germplasm against salinity is one of the accepted methods to select lines for saline soil.

Methodology:

The seeds of 15 wheat cultivars/lines (Shatabdi, Gaurav, Sufi, Saurav, Bijoy, CB7, CB-19,CB-35, CB-37, CB-38, CB-44, CB-55, CB-60, CB-72 and CB-78) have been for the study. To observed yield variation, plants were grown in seed beds (2m x 1 m) using standard recommended fertilizer dose (110-35-25-22 kg/h of NPKS). The experiment was carried out in four different seed beds. These four seed beds were prepared with different salinity levels. The salinity levels were raised to 0.38 dS-m, 3.76 dS-m8.80 dS-m and 12.0 dS-m by adding NaCl solution externally. Each bed was divided into fifteen rows and each raw represents a different variety. Line to line distance was about 15cm. Eighty seeds were sown continuously. Yield and yield component data were recorded after harvesting. The values in the tables represents the mean of ten replicates. Sodium and potassium ions were collected by boiling the dry tissues with distilled water and measured the amount by Flame photometer (Kormoker and Van Steveninck. 1978). The amount of ions presented in table IX is the mean value of four replicates.

Source of Information: Bangladesh J. Sci. Ind. Res. 43(2), 223-234, 2008

Article Link (Online Journal):

Funding Source:

1.

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Of the fifteen varieties/lines which were tested experimentally against salinity in respected of their performance evaluated on the basis of seedling emergence, plant height, yield and yield component, Gaurav, Shatabdi, Sufi, Bijoy. CB-38, CB-60 and CB-78 showed better results. These varieties/lines can be chosen for cultivation in the saline belt of Bangladesh. The mechanism controlling the decrease in yield has been identified as due to a salinity induced increas in Na+ and decrease K+ content.

Knowledge Management: Journal