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International Journal of Plant Breeding and Genetics
  Year: 2022 | Volume: 16 | Issue: 1 | Page No.: 1-9
DOI: 10.3923/ijpbg.2022.1.9
 
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Evaluation of Mutant Generations of Irradiated Soybean (Glycine max (L.) Merrill) in the Guinea Savannah Agroecology of Ghana

I.K. Addai , A. Bawa and K. Asamoah Jnr

Abstract:
Background and Objective: Gamma rays at different doses have been used to induce mutation in several species. The objective of the study was to determine mutant lines with improved agronomic traits. Materials and Methods: Seeds of soybean variety ‘Jenguma’ were irradiated with gamma rays at 150, 200, 250 and 300 Gy using un-irradiated (0 Gy) as control. The M2 seeds were screened and the promising lines were selected and were advanced to M3 generation. Desired M3 mutants were evaluated for improved agronomic traits in RCBD in the Guinea Savannah Agro-ecology. Results: The irradiation was found to have had great potential to improve the yield and other important agronomic traits for the crop. Desired characteristics were found with 200, 250 and 150 Gy treated seeds. Maturity periods for seeds selected were shorter. The shattering resistance of the selected M2 seeds of 200 and 250 Gy were also found to be a potential improvement over the parental variety ‘Jenguma’ which was originally bred to control pod shattering. More desired traits were found in the 200 and 250 Gy mutant lines with only a few in the 150 and 300 Gy. Conclusion: Promising mutant genotypes should be tested in multi-locational trials to determine their suitability in the various agro-ecologies for release as varieties and production by farmers in these areas.
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How to cite this article:

I.K. Addai, A. Bawa and K. Asamoah Jnr, 2022. Evaluation of Mutant Generations of Irradiated Soybean (Glycine max (L.) Merrill) in the Guinea Savannah Agroecology of Ghana. International Journal of Plant Breeding and Genetics, 16: 1-9.

DOI: 10.3923/ijpbg.2022.1.9

URL: https://scialert.net/abstract/?doi=ijpbg.2022.1.9

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