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Tamaño y forma de unidad experimental para ensayos de rendimiento de arroz (Oryza sativa), en Guanacaste, Costa Rica
| Content Provider | Semantic Scholar |
|---|---|
| Author | Rojas, Jorge Claudio Vargas Flores, Juan Ramón Navarro |
| Copyright Year | 2019 |
| Abstract | “Size and shape of experimental units for rice (Oryza sativa) yield trials, in Guanacaste, Costa Rica”. Introduction: The size and shape of an experimental unit affect the accuracy of field trials. Objective: Finding the appropriate size and shape of an experimental unit for rice yield trials in Bagaces, Guanacaste, Costa Rica. Methods: We applied a multiple regression analysis to data from an uniformity trial. The residual variability, measured as a coefficient of variation (and related to different sizes and forms of a replicable experimental unit), was modeled according to length and width. The next step was to determine partial derivatives per regressor and adjust them to -1. With the equation system it is possible to obtain a combination of width and length which decreases the coefficient of variation. Results: For this work, the resulting combination was 2,93m long by 7,95m wide. Conclusion: In practical terms, the size of the experimental unit that decreases the coefficient of variation is 3m long and 8m wide. |
| Starting Page | 355 |
| Ending Page | 360 |
| Page Count | 6 |
| File Format | PDF HTM / HTML |
| DOI | 10.22458/urj.v11i3.2653 |
| Alternate Webpage(s) | https://revistas.uned.ac.cr/index.php/cuadernos/article/download/2653/3318 |
| Alternate Webpage(s) | https://doi.org/10.22458/urj.v11i3.2653 |
| Volume Number | 11 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
