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Identification of Mungbean Genotypes for Salinity Tolerance

M. A. Salam
Former MS Student
Department of Crop Botany, BAU, Mymensingh

Dr. Md. Tariqul Islam
Principal Scientific Officer and Head
Crop Physiology Division, Bangladesh Institute of Nuclear Agriculture, BAU Campus, Mymensingh-2202, Bangladesh

M. Y. Uddin
Former MS Student
Department of Crop Botany, BAU, Mymensingh

M. O. Islam, M. Z. Hossain
Professor
Department of Crop Botany, BAU, Mymensingh

Abstract/ Executive Summary:

A pot experiment was conducted at the potyard of Bangladesh Institute of Nuclear Agriculture, Mymensingh 28 February to 12 April 2007 with five mungbean genotypes viz., E₁J-606, N₂M-402, E1J-608, Binamoog-5 and Binamoog-7 subjected to salinity at 5 dSm^-1 at pre-flowering, flowering and pod formation stage with a control. Results revealed that the effect of salinity at different growth stages of mungbean genotypes was significant on plant height, number of primary branches plant^-1, number of leaves plant^-1, leaf area plant^-1, dry matter production in roots, stems, leaves, pod dry weight and total dry matter, number of pods plant^-1, number of seeds plant^-1, 1000-seed weight, seed yield plant^-1 and harvest index. Salinity at pod formation stage showed the better performance followed by salinity at flowering stage. Plant height, number of branches, number of leaves, pod dry weight, number of pods plant^-1, number of seeds plant^-1, seed yield plant^-1 and total dry matter were the highest in N₂M-402 compared to other genotypes.

Keywords: Mungbean genotypes, Salinity tolerance and Yield

Location: Potyard of Bangladesh Institute of Nuclear Agriculture (BINA), Mymensingh

Start Date: 28-02-2007

End Date: 17-04-2007

Program Area: Variety and Species

Commodity: Mungbean

Objectives:

The objectives of the study were to assess the effect of salinity on different growth stages of mungbean genotypes and to find out salt tolerant genotype.

Methodology:

A pot experiment was conducted at the potyard of Bangladesh Institute of Nuclear Agriculture (BINA), Mymensingh during 28 February to 12 April 2007. Five genotypes of mungbean namely E₁J-606, N₂M-402, E1J-608, Binamoog-5 and Binamoog-7were included in the study to assess their performances on morphdiogical parameters, yield and yield attributes under salinity of 5 dSm^-1 at pre-flowering, flowering and seed formation stage along with a control where no salt was applied. The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. The experimental unit was plastic pot. There were 120 pots under the study. The seeds were sown directly in the pots. Date were recorded at 45 DAS to collect some morpho-phygiological parameters namely, plant height number of branches, number of leaves plant^-1, leaf area plant^-1, dry weight of root, dry weight of stem, dry weight of leaves, dry weigh of pods, total dry matter plant^-1. Number of pods plant^-1, number of seeds plant^-1, 1000-seed weight and harvest index were also recorded, at maturity. The recorded data were analyzed using MSTAT-C package program.

Source of Information: J. Bangladesh Soc. Agric. Sci. Technol, 5(1&2):141-144, 2008

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The effect of salinity at different growth stages of mungbean genotypes was significant on plant height, number of primary branches plant^-1, number of leaves plant^-1, leaf area plant^-1, dry matter production in roots, stems, leaves, pod dry weight and total dry matter, number of pods plant^-1, number of seeds plant^-1, 1000-seed weight, seed yield plant^-1 and harvest index. Salinity at pod formation stage showed the better performance followed by salinity at flowering stage. Plant height, number of branches, number of leaves, pod dry weight, number of pods plant^-1, number of seeds plant^-1, seed yield plant^-1 and total dry matter were the highest in N₂M-402 compared to other genotypes.

Knowledge Management: Journal