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| Format: | Artículo científico |
| Language: | en |
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Universidad Nacional de Colombia
2020
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| Online Access: | https://www.redalyc.org/articulo.oa?id=180376042001 https://www.redalyc.org/journal/1803/180376042001/ https://www.redalyc.org/journal/1803/180376042001/html/ https://www.redalyc.org/journal/1803/180376042001/180376042001.epub https://www.redalyc.org/journal/1803/180376042001/movil |
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| _version_ | 1866814628215914496 |
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| author | Mohamed Ali Abdelsatar |
| author_facet | Mohamed Ali Abdelsatar |
| contents | Gene action and heritability in bi-parental crosses of sunflower Mohamed Ali Abdelsatar Tamer Hassan Ali Hassan Agrociencias III cluster selection criteria North Carolina Design average degree of dominance A field experiment was conducted in the contrasting locations of Kafr-El-Hamam/Sharkia and Al-Arish/North Sinai agricultural research stations of the Agricultural Research Center in Egypt. We estimated the additive and dominance genetic variances as well as heritability in the broad and narrow senses for sunflower yield and its attributes in the cross L350 x L355 using North Carolina Design-III. The magnitude of the additive variances for all studied traits at both locations in proportion to the phenotypic variances was larger than the dominance variances. The average degree of dominance was greater than the unit, as also confirmed by the high narrow-sense heritability for most of the studied traits. The genetic improvement may be achieved through the selection of genotypes with larger head diameter and heavier seed weight which also showed moderate to high values of narrow-sense heritability. Thirty-two sunflower backcrosses were grouped into eight distinct clusters/groups by canonical analysis. 2020 artículo científico 0120-9965 https://www.redalyc.org/articulo.oa?id=180376042001 https://www.redalyc.org/journal/1803/180376042001/ https://www.redalyc.org/journal/1803/180376042001/html/ https://www.redalyc.org/journal/1803/180376042001/180376042001.epub https://www.redalyc.org/journal/1803/180376042001/movil 10.15446/agron.colomb.v38n3.84472 en http://www.redalyc.org/revista.oa?id=1803 Agronomía Colombiana application/pdf Universidad Nacional de Colombia Agronomía Colombiana (Colombia) Num.3 Vol.38 |
| format | Artículo científico |
| id | redalyc_180376042001 |
| language | en |
| publishDate | 2020 |
| publisher | Universidad Nacional de Colombia |
| spellingShingle | Gene action and heritability in bi-parental crosses of sunflower Mohamed Ali Abdelsatar Agrociencias III cluster selection criteria North Carolina Design average degree of dominance Gene action and heritability in bi-parental crosses of sunflower Mohamed Ali Abdelsatar Tamer Hassan Ali Hassan Agrociencias III cluster selection criteria North Carolina Design average degree of dominance A field experiment was conducted in the contrasting locations of Kafr-El-Hamam/Sharkia and Al-Arish/North Sinai agricultural research stations of the Agricultural Research Center in Egypt. We estimated the additive and dominance genetic variances as well as heritability in the broad and narrow senses for sunflower yield and its attributes in the cross L350 x L355 using North Carolina Design-III. The magnitude of the additive variances for all studied traits at both locations in proportion to the phenotypic variances was larger than the dominance variances. The average degree of dominance was greater than the unit, as also confirmed by the high narrow-sense heritability for most of the studied traits. The genetic improvement may be achieved through the selection of genotypes with larger head diameter and heavier seed weight which also showed moderate to high values of narrow-sense heritability. Thirty-two sunflower backcrosses were grouped into eight distinct clusters/groups by canonical analysis. 2020 artículo científico 0120-9965 https://www.redalyc.org/articulo.oa?id=180376042001 https://www.redalyc.org/journal/1803/180376042001/ https://www.redalyc.org/journal/1803/180376042001/html/ https://www.redalyc.org/journal/1803/180376042001/180376042001.epub https://www.redalyc.org/journal/1803/180376042001/movil 10.15446/agron.colomb.v38n3.84472 en http://www.redalyc.org/revista.oa?id=1803 Agronomía Colombiana application/pdf Universidad Nacional de Colombia Agronomía Colombiana (Colombia) Num.3 Vol.38 |
| title | Gene action and heritability in bi-parental crosses of sunflower |
| topic | Agrociencias III cluster selection criteria North Carolina Design average degree of dominance |
| url | https://www.redalyc.org/articulo.oa?id=180376042001 https://www.redalyc.org/journal/1803/180376042001/ https://www.redalyc.org/journal/1803/180376042001/html/ https://www.redalyc.org/journal/1803/180376042001/180376042001.epub https://www.redalyc.org/journal/1803/180376042001/movil |