Heritability studies of some cassava genotypes
Three traits, namely root number (RTNO), root weight(RTWT) and fresh yield (FYLD) of some cassava genotypes wrer scored and analysed for heritability. The genotypes differed significantly for each of the tree traits. Generally heritability per replicate was above 50% indicating that the additive por...
| Main Authors: | , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
2002
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/99978 |
| _version_ | 1855529523643154432 |
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| author | Asante, K. Dixon, Alfred G.O. |
| author_browse | Asante, K. Dixon, Alfred G.O. |
| author_facet | Asante, K. Dixon, Alfred G.O. |
| author_sort | Asante, K. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Three traits, namely root number (RTNO), root weight(RTWT) and fresh yield (FYLD) of some cassava genotypes wrer scored and analysed for heritability. The genotypes differed significantly for each of the tree traits. Generally heritability per replicate was above 50% indicating that the additive portion of the genetic variance might be high. Heritability per plot ranged between 69% and 86% which might indicate that non additive effect of the genotypic variance variance might be small. Phenotypic and genotypic variance differed significantly, which reflects an environmental influence on the genotypes. By assuming a 5% differential selection of the top population, an advance of 46.5%, 41.5%and 33.5% can be arrived at for RTNO, RTWT and FYLD respectively, over their population means. Correlation between the three traits was highly significant and positive. |
| format | Journal Article |
| id | CGSpace99978 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2002 |
| publishDateRange | 2002 |
| publishDateSort | 2002 |
| record_format | dspace |
| spelling | CGSpace999782023-06-12T16:14:45Z Heritability studies of some cassava genotypes Asante, K. Dixon, Alfred G.O. tuber cassava breeding genotypes heritability Three traits, namely root number (RTNO), root weight(RTWT) and fresh yield (FYLD) of some cassava genotypes wrer scored and analysed for heritability. The genotypes differed significantly for each of the tree traits. Generally heritability per replicate was above 50% indicating that the additive portion of the genetic variance might be high. Heritability per plot ranged between 69% and 86% which might indicate that non additive effect of the genotypic variance variance might be small. Phenotypic and genotypic variance differed significantly, which reflects an environmental influence on the genotypes. By assuming a 5% differential selection of the top population, an advance of 46.5%, 41.5%and 33.5% can be arrived at for RTNO, RTWT and FYLD respectively, over their population means. Correlation between the three traits was highly significant and positive. 2002 2019-03-03T05:54:26Z 2019-03-03T05:54:26Z Journal Article https://hdl.handle.net/10568/99978 en Limited Access Asante, K. & Dixon, A.G.O. (2002). Heritability studies of some cassava genotypes. West African Journal of Applied Ecology, 3(1), 49-53. |
| spellingShingle | tuber cassava breeding genotypes heritability Asante, K. Dixon, Alfred G.O. Heritability studies of some cassava genotypes |
| title | Heritability studies of some cassava genotypes |
| title_full | Heritability studies of some cassava genotypes |
| title_fullStr | Heritability studies of some cassava genotypes |
| title_full_unstemmed | Heritability studies of some cassava genotypes |
| title_short | Heritability studies of some cassava genotypes |
| title_sort | heritability studies of some cassava genotypes |
| topic | tuber cassava breeding genotypes heritability |
| url | https://hdl.handle.net/10568/99978 |
| work_keys_str_mv | AT asantek heritabilitystudiesofsomecassavagenotypes AT dixonalfredgo heritabilitystudiesofsomecassavagenotypes |