Morphological Characterization and Assessment of Genetic Variability, Character Association, and Divergence in Soybean Mutants
Genetic diversity is important for crop improvement. An experiment was conducted during 2011 to study genetic variability, character association, and genetic diversity among 27 soybean mutants and four mother genotypes. Analysis of variance revealed significant differences among the mutants and moth...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2014/968796 |
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| author | M. A. Malek Mohd Y. Rafii Most. Shahida Sharmin Afroz Ujjal Kumar Nath M. Monjurul Alam Mondal |
| author_facet | M. A. Malek Mohd Y. Rafii Most. Shahida Sharmin Afroz Ujjal Kumar Nath M. Monjurul Alam Mondal |
| author_sort | M. A. Malek |
| collection | DOAJ |
| description | Genetic diversity is important for crop improvement. An experiment was conducted during 2011 to study genetic variability, character association, and genetic diversity among 27 soybean mutants and four mother genotypes. Analysis of variance revealed significant differences among the mutants and mothers for nine morphological traits. Eighteen mutants performed superiorly to their mothers in respect to seed yield and some morphological traits including yield attributes. Narrow differences between phenotypic and genotypic coefficients of variation (PCV and GCV) for most of the characters revealed less environmental influence on their expression. High values of heritability and genetic advance with high GCV for branch number, plant height, pod number, and seed weight can be considered as favorable attributes for soybean improvement through phenotypic selection and high expected genetic gain can be achieved. Pod and seed number and maturity period appeared to be the first order traits for higher yield and priority should be given in selection due to their strong associations and high magnitudes of direct effects on yield. Cluster analysis grouped 31 genotypes into five groups at the coefficient value of 235. The mutants/genotypes from cluster I and cluster II could be used for hybridization program with the mutants of clusters IV and V in order to develop high yielding mutant-derived soybean varieties for further improvement. |
| format | Article |
| id | doaj-art-6fdc55c116fb413aa2be6f75cc363141 |
| institution | Kabale University |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-6fdc55c116fb413aa2be6f75cc3631412025-02-03T05:50:16ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/968796968796Morphological Characterization and Assessment of Genetic Variability, Character Association, and Divergence in Soybean MutantsM. A. Malek0Mohd Y. Rafii1Most. Shahida Sharmin Afroz2Ujjal Kumar Nath3M. Monjurul Alam Mondal4Bangladesh Institute of Nuclear Agriculture, Mymensingh 2202, BangladeshInstitute of Tropical Agriculture, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, MalaysiaCotton Development Board, Farmgate, Dhaka 1215, BangladeshBangladesh Agricultural University, Mymensingh 2202, BangladeshBangladesh Institute of Nuclear Agriculture, Mymensingh 2202, BangladeshGenetic diversity is important for crop improvement. An experiment was conducted during 2011 to study genetic variability, character association, and genetic diversity among 27 soybean mutants and four mother genotypes. Analysis of variance revealed significant differences among the mutants and mothers for nine morphological traits. Eighteen mutants performed superiorly to their mothers in respect to seed yield and some morphological traits including yield attributes. Narrow differences between phenotypic and genotypic coefficients of variation (PCV and GCV) for most of the characters revealed less environmental influence on their expression. High values of heritability and genetic advance with high GCV for branch number, plant height, pod number, and seed weight can be considered as favorable attributes for soybean improvement through phenotypic selection and high expected genetic gain can be achieved. Pod and seed number and maturity period appeared to be the first order traits for higher yield and priority should be given in selection due to their strong associations and high magnitudes of direct effects on yield. Cluster analysis grouped 31 genotypes into five groups at the coefficient value of 235. The mutants/genotypes from cluster I and cluster II could be used for hybridization program with the mutants of clusters IV and V in order to develop high yielding mutant-derived soybean varieties for further improvement.http://dx.doi.org/10.1155/2014/968796 |
| spellingShingle | M. A. Malek Mohd Y. Rafii Most. Shahida Sharmin Afroz Ujjal Kumar Nath M. Monjurul Alam Mondal Morphological Characterization and Assessment of Genetic Variability, Character Association, and Divergence in Soybean Mutants The Scientific World Journal |
| title | Morphological Characterization and Assessment of Genetic Variability, Character Association, and Divergence in Soybean Mutants |
| title_full | Morphological Characterization and Assessment of Genetic Variability, Character Association, and Divergence in Soybean Mutants |
| title_fullStr | Morphological Characterization and Assessment of Genetic Variability, Character Association, and Divergence in Soybean Mutants |
| title_full_unstemmed | Morphological Characterization and Assessment of Genetic Variability, Character Association, and Divergence in Soybean Mutants |
| title_short | Morphological Characterization and Assessment of Genetic Variability, Character Association, and Divergence in Soybean Mutants |
| title_sort | morphological characterization and assessment of genetic variability character association and divergence in soybean mutants |
| url | http://dx.doi.org/10.1155/2014/968796 |
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