Applying statistics for nonsequential yield component analysis - Information
In the paper, an application of the methodology for analyzing yield as affected by its components that develop at the same ontogenetic level is discussed; it may also be applied to any model in which several traits developing non-sequentially affect their product. The methodology is called "non...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Czech Academy of Agricultural Sciences
2007-10-01
|
| Series: | Plant, Soil and Environment |
| Subjects: | |
| Online Access: | https://pse.agriculturejournals.cz/artkey/pse-200710-0007_applying-statistics-for-nonsequential-yield-component-analysis-information.php |
| _version_ | 1797898344382595072 |
|---|---|
| author | M. Kozak S. Samborski M.S. Kang J. Rozbicki |
| author_facet | M. Kozak S. Samborski M.S. Kang J. Rozbicki |
| author_sort | M. Kozak |
| collection | DOAJ |
| description | In the paper, an application of the methodology for analyzing yield as affected by its components that develop at the same ontogenetic level is discussed; it may also be applied to any model in which several traits developing non-sequentially affect their product. The methodology is called "nonsequential yield component analysis". Two applications are presented; the proposed approach is compared with path analysis, commonly applied for yield component analysis, and Piepho's approach. In one example, grain yield of two cultivars of winter triticale (×Triticosecale Wittmack), Fidelio and Bogo, as affected by harvest index and biomass yield, was studied; the results of the three approaches compared were similar. However, in the study of nitrogen uptake as affected by nitrogen-uptake efficiency and crop nitrogen supply (the problem for which yield component analysis may be applied because of the underlying multiplicative model), the results of the methods were different. For both cultivars, path analysis and Piepho's method showed a much stronger influence of crop nitrogen supply on nitrogen uptake than that of nitrogen-uptake efficiency. In the proposed method, however, both these component traits influenced nitrogen uptake to a similar extent. The proposed method is shown to be methodologically better than the other approaches, and to provide different results in some situations. Hence, the new method should be used for nonsequential yield component analysis although it is suggested that path analysis may be applied if the determination coefficient of the linear model is close to 100%. |
| first_indexed | 2024-04-10T08:11:55Z |
| format | Article |
| id | doaj.art-58625b82942b44079407b0172ce7db5f |
| institution | Directory Open Access Journal |
| issn | 1214-1178 1805-9368 |
| language | English |
| last_indexed | 2024-04-10T08:11:55Z |
| publishDate | 2007-10-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Plant, Soil and Environment |
| spelling | doaj.art-58625b82942b44079407b0172ce7db5f2023-02-23T03:45:19ZengCzech Academy of Agricultural SciencesPlant, Soil and Environment1214-11781805-93682007-10-01531045646310.17221/2199-PSEpse-200710-0007Applying statistics for nonsequential yield component analysis - InformationM. Kozak0S. Samborski1M.S. Kang2J. Rozbicki3Department of Biometry, Warsaw Agricultural University, Warsaw, PolandDepartment of Agronomy, Warsaw Agricultural University, Warsaw, PolandPunjab Agricultural University, Ludhiana, IndiaDepartment of Agronomy, Warsaw Agricultural University, Warsaw, PolandIn the paper, an application of the methodology for analyzing yield as affected by its components that develop at the same ontogenetic level is discussed; it may also be applied to any model in which several traits developing non-sequentially affect their product. The methodology is called "nonsequential yield component analysis". Two applications are presented; the proposed approach is compared with path analysis, commonly applied for yield component analysis, and Piepho's approach. In one example, grain yield of two cultivars of winter triticale (×Triticosecale Wittmack), Fidelio and Bogo, as affected by harvest index and biomass yield, was studied; the results of the three approaches compared were similar. However, in the study of nitrogen uptake as affected by nitrogen-uptake efficiency and crop nitrogen supply (the problem for which yield component analysis may be applied because of the underlying multiplicative model), the results of the methods were different. For both cultivars, path analysis and Piepho's method showed a much stronger influence of crop nitrogen supply on nitrogen uptake than that of nitrogen-uptake efficiency. In the proposed method, however, both these component traits influenced nitrogen uptake to a similar extent. The proposed method is shown to be methodologically better than the other approaches, and to provide different results in some situations. Hence, the new method should be used for nonsequential yield component analysis although it is suggested that path analysis may be applied if the determination coefficient of the linear model is close to 100%.https://pse.agriculturejournals.cz/artkey/pse-200710-0007_applying-statistics-for-nonsequential-yield-component-analysis-information.phpcrop nitrogen supplyharvest indexnitrogennitrogen uptake efficiencypath analysisyield components |
| spellingShingle | M. Kozak S. Samborski M.S. Kang J. Rozbicki Applying statistics for nonsequential yield component analysis - Information Plant, Soil and Environment crop nitrogen supply harvest index nitrogen nitrogen uptake efficiency path analysis yield components |
| title | Applying statistics for nonsequential yield component analysis - Information |
| title_full | Applying statistics for nonsequential yield component analysis - Information |
| title_fullStr | Applying statistics for nonsequential yield component analysis - Information |
| title_full_unstemmed | Applying statistics for nonsequential yield component analysis - Information |
| title_short | Applying statistics for nonsequential yield component analysis - Information |
| title_sort | applying statistics for nonsequential yield component analysis information |
| topic | crop nitrogen supply harvest index nitrogen nitrogen uptake efficiency path analysis yield components |
| url | https://pse.agriculturejournals.cz/artkey/pse-200710-0007_applying-statistics-for-nonsequential-yield-component-analysis-information.php |
| work_keys_str_mv | AT mkozak applyingstatisticsfornonsequentialyieldcomponentanalysisinformation AT ssamborski applyingstatisticsfornonsequentialyieldcomponentanalysisinformation AT mskang applyingstatisticsfornonsequentialyieldcomponentanalysisinformation AT jrozbicki applyingstatisticsfornonsequentialyieldcomponentanalysisinformation |