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The influence of systematic micro-environmental variation on individual plant yield within selection plots |
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| Authors: | John Hamblin R. Knight M. J. Atkinson |
| Affiliation: | (1) Waite Agricultural Research Institute, University of Adelaide, Glen Osmond, South Australia;(2) Present address: Department of Agriculture, Jarrah Road, 6151 South Perth, Western Australia;(3) Present address: Department of Economics, University of Adelaide, 5000 Adelaide, South Australia |
| Abstract: | Summary Moving average and polynomial response surfaces were used to estimate systematic micro-environmental variation within four different F3 selection environments. At low density the response surfaces were efficient in estimating systematic variation. At high densities random variation due to intergenotypic competition predominates. It is concluded that the two major factors rendering single plant selection for yield inefficient are competition within selection plots and genotype-season interactions between the selection and test generations. |
| Keywords: | Yield selection micro-environmental variation |
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