Genotype x environment interaction and optimum resource allocation for yield and yield components of cassava
Dry yield and yield components from 6 multilocational trials of cassava genotypes conducted for 3 years in Nigeria were used to study the nature and magnitude of genotype x environment (G x E) interaction and to determine the optimum resource allocation for cassava yield trials. The effects of envir...
| Main Authors: | , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
1998
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/42915 |
| _version_ | 1855522600925528064 |
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| author | Dixon, Alfred G.O. Nukenine, EN |
| author_browse | Dixon, Alfred G.O. Nukenine, EN |
| author_facet | Dixon, Alfred G.O. Nukenine, EN |
| author_sort | Dixon, Alfred G.O. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Dry yield and yield components from 6 multilocational trials of cassava genotypes conducted for 3 years in Nigeria were used to study the nature and magnitude of genotype x environment (G x E) interaction and to determine the optimum resource allocation for cassava yield trials. The effects of environment, genotype and G x E interaction were highly significant for all yield traits. Variations due to G x E interaction were greater than those due to genotypic differences for all yield traits. Genotype x location x year interactions contributed most to the G x E interaction for all the yield traits. Therefore, to facilitate selection, zonation of cassava growing agroecologies into homogenous ecosystems using multivariate statistical approach should be done to minimise the influence of the G x E interaction. Testing at 3-5 locations for 2-3 years with 3-4 replications per location is the optimum combination that will not jeopardise precision in cassava yield trials. |
| format | Journal Article |
| id | CGSpace42915 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 1998 |
| publishDateRange | 1998 |
| publishDateSort | 1998 |
| record_format | dspace |
| spelling | CGSpace429152023-02-15T06:51:38Z Genotype x environment interaction and optimum resource allocation for yield and yield components of cassava Dixon, Alfred G.O. Nukenine, EN manihot esculenta genotypes yield factors genotipos factores de rendimiento Dry yield and yield components from 6 multilocational trials of cassava genotypes conducted for 3 years in Nigeria were used to study the nature and magnitude of genotype x environment (G x E) interaction and to determine the optimum resource allocation for cassava yield trials. The effects of environment, genotype and G x E interaction were highly significant for all yield traits. Variations due to G x E interaction were greater than those due to genotypic differences for all yield traits. Genotype x location x year interactions contributed most to the G x E interaction for all the yield traits. Therefore, to facilitate selection, zonation of cassava growing agroecologies into homogenous ecosystems using multivariate statistical approach should be done to minimise the influence of the G x E interaction. Testing at 3-5 locations for 2-3 years with 3-4 replications per location is the optimum combination that will not jeopardise precision in cassava yield trials. 1998 2014-09-24T07:58:46Z 2014-09-24T07:58:46Z Journal Article https://hdl.handle.net/10568/42915 en Open Access |
| spellingShingle | manihot esculenta genotypes yield factors genotipos factores de rendimiento Dixon, Alfred G.O. Nukenine, EN Genotype x environment interaction and optimum resource allocation for yield and yield components of cassava |
| title | Genotype x environment interaction and optimum resource allocation for yield and yield components of cassava |
| title_full | Genotype x environment interaction and optimum resource allocation for yield and yield components of cassava |
| title_fullStr | Genotype x environment interaction and optimum resource allocation for yield and yield components of cassava |
| title_full_unstemmed | Genotype x environment interaction and optimum resource allocation for yield and yield components of cassava |
| title_short | Genotype x environment interaction and optimum resource allocation for yield and yield components of cassava |
| title_sort | genotype x environment interaction and optimum resource allocation for yield and yield components of cassava |
| topic | manihot esculenta genotypes yield factors genotipos factores de rendimiento |
| url | https://hdl.handle.net/10568/42915 |
| work_keys_str_mv | AT dixonalfredgo genotypexenvironmentinteractionandoptimumresourceallocationforyieldandyieldcomponentsofcassava AT nukenineen genotypexenvironmentinteractionandoptimumresourceallocationforyieldandyieldcomponentsofcassava |