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- Title
Dissecting drought stress tolerance of soybean genotypes based on morphological and physiological attributes.
- Authors
Ahsan, Md. Karimul; Al Mamun, Md. Abdullah; Ghosh, Toton Kumar; Karim, M. Abdul
- Abstract
Soybean genotypes G00006, BD2336, AGS383, PK472, BCS1, NCS1, BU Soybean1 and BARI Soybean6 were evaluated under 20% (drought) and 80% (control) of field capacity based on morpho-physiological and yield response to drought. The results revealed that plant height, leaf number, chlorophyll content, photosynthesis, stomatal conductance, transpiration rate, relative water content and water uptake capacity of soybean drastically reduced due to drought. However, root: shoot ratio increased under drought condition. Across the genotypes, the root: shoot ratio ranged from 0.20 to 0.47 in control, while 0.22 to 59 in drought condition. Genotypes BD2336, AGS383 and G00006 produced higher number of pods and seeds, whereas minimum yield reduction was recorded in AGS383 under drought. Based on drought tolerance index, AGS383 ranked 1st, while BD2336 and PK472 ranked 2nd and 3rd position, respectively. High grain yielding ability of AGS383 suggested that it could be cultivated in drought prone environment.
- Subjects
BARI (Italy); DROUGHT tolerance; GENOTYPES; SOYBEAN; SEED pods; GRAIN yields; RIFLE-ranges
- Publication
Journal of the Bangladesh Academy of Sciences, 2023, Vol 47, Issue 2, p223
- ISSN
0378-8121
- Publication type
Article
- DOI
10.3329/jbas.v47i2.68555