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Evaluation of Sweet Potato Genotypes Tolerance to Salinity

Dr. A. F. M. Saiful Islam
Principal Scientific Officer
Crop Physiology Division, Bangladesh Institute of Nuclear Agriculture, BAU Campus, Mymensingh-2202, Bangladesh

M. Monjurul Alam Mondal, PhD
Principal Scientific Officer
Crop Physiology Division, Bangladesh Institute of Nuclear Agriculture, BAU Campus, Mymensingh-2202, Bangladesh

Abstract/ Executive Summary:

Pot experiment was conducted at pot yard, Bangladesh Institute of Nuclear Agriculture, Mymensingh, during the period from November 2002 to April 2003 for screening saline tolerance genotypes based on morpho-physiological parameters. Nine genotypes of sweet potato viz., Kamalasunduri, Daulatpuri, Tripti, BARI mistialu-5, BARI mistialu-6 and four exotic cultivars viz., JB, J1, J7 and J8 and four levels of salinity viz., 0, 3, 6, 9 and 12 dS/m were applied. The yield of sweet potato decreased gradually with increase of salinity levels. Among the genotypes, J7 and Tripti showed better performance under salinity. The lowest yield loss at 12 dS/m was recorded in Kamlasunduri (35%) and the highest yield loss was recorded in Daulatpuri (96.6%). Though the yield loss was lowest in J7 but its yield performance was lower than the J8.

Keywords: Sweet potato, Salinity, Yield.

Location: Pot yard, Bangladesh Institute of Nuclear Agriculture, Mymensingh

Start Date: 20-11-2002

End Date: 15-04-2003

Program Area: Variety and Species

Commodity: Sweet potato

Objectives:

Screening the suitable genotypes to salinity and capable of growing in saline zones

Methodology:

Pot experiment was conducted at pot yard, Bangladesh Institute of Nuclear Agriculture, Mymensingh, during the period from November 2002 to April 2003 to determine saline tolerance genotypes based on morpho-physiological parameters. Nine genotypes of sweet potato viz., Kamalasunduri, Daulatpuri, Tripti, BARI mistialu-5, BARI mistialu-6 and four exotic cultivars viz., JB, J1, J7 and J8 and four levels of salinity viz., 0, 3, 6, 9 and 12 dS/m were applied. The salinity treatment was imposed at 50 DAP. At harvest, the yield and yield related parameters were recorded. The collected data were statistically analyzed.

Source of Information: Annual Report, 2002-03. Bangladesh Institute of Nuclear Agriculture, Mymensingh. pp. 75-77.

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The exotic genotype J8 may cultivate under moderate saline area.

Knowledge Management: Report/Proceedings