Environmental characteristisation for genotype by environment matching. SIMLESA workshop. Solomon Fekybelu
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Environmental characteristisation for genotype by environment matching. SIMLESA workshop. Solomon Fekybelu
- 1. Solomon Fekybelu, Yash Chauhan, Daniel Rodriguez, John Dimes SIMLESA workshop, Brisbane, Sep. 2011 Environmental characterisation for genotype by environment matching
- 4. Clustering of probability distribution of simulated yield
- 5. Yield cluster distribution follows a geographical pattern
- 7. Clusters 4 & 5 have higher frequencies of terminal drought (sky blue and purple sections) No stress Mild Moderate Severe Flowering
- 8. Over 80% the variability in yield across environments was accounted by drought frequencies in those environments
- 10. Thank you
Notas do Editor
- Maize breeding focuses at NQLD (high rainfall area) & South, central (drier) environments
- As you know crop grow in various type of contrasting environments. Plant breeders target a certain population of environment which correspond to the set of env. that crops might experienced within a defined geographic area that they’re interesting in. Breeders usually target a certain population of environments which reflect/integrate/gather/correspond the different environments to which their released cultivar will be exposed to. Comstock gave a definition of the TPE in 1977, saying that they correspond to the complete set of environment types in which crop can be grown within a geographical ares. Identification of the location
- E1-no stress, e2 flowering stress, e3-mild terminal, e4 moderate and
- Traits like ‘stay green’ may help with terminal stress Matching phenology may require developing quick maturing genotypes G-M for each target environment to enhance productivity and profitability of growing maize