Grading Criteria of <i>Anthurium</i> DUS Quantitative Characteristics by Multiple Comparison
The determination of the grades and interval of quantitative characteristics is an important job while we draft new distinctness, uniformity and stability (DUS) test guidelines. Grading criteria should be adjusted because of the effect of year and site; it is also a key task to establish applicable...
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MDPI AG
2023-06-01
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| Series: | Plants |
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| Online Access: | https://www.mdpi.com/2223-7747/12/13/2417 |
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| author | Yunxia Chu Li Ren Shan Deng Shouguo Li Yiying Zhang Hairong Chen |
| author_facet | Yunxia Chu Li Ren Shan Deng Shouguo Li Yiying Zhang Hairong Chen |
| author_sort | Yunxia Chu |
| collection | DOAJ |
| description | The determination of the grades and interval of quantitative characteristics is an important job while we draft new distinctness, uniformity and stability (DUS) test guidelines. Grading criteria should be adjusted because of the effect of year and site; it is also a key task to establish applicable criteria in the DUS test. Excellent criteria will improve the accuracy of the DUS evaluation. In this study, we analyzed the variability and distribution patterns of nine quantitative characteristics of 251 anthurium varieties. Three methods were used to establish the grade criteria: the two standard deviation methods, the two LSD<sub>0.05</sub> methods and the multiple comparison method. The results showed that the coefficient of variation within varieties varied from 6.96% to 10.11%. The quantitative characteristics observed in this study did not follow a normal distribution, except spadix thickness at the middle and spathe size. In most characteristics, the standard deviations and LSD<sub>0.05</sub> were similar, except for spathe size. The state interval set by multiple comparison methods for every characteristic was variable, and its mean was about 1.25 times that of the other two methods. The process of establishing grading criteria using the multiple comparison method was simpler, and the criteria were more accurate, with a lower error rate. |
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| id | doaj.art-92817b7cd7be4c0e8c68cdfb3270ea93 |
| institution | Directory Open Access Journal |
| issn | 2223-7747 |
| language | English |
| last_indexed | 2024-03-11T01:32:26Z |
| publishDate | 2023-06-01 |
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| spelling | doaj.art-92817b7cd7be4c0e8c68cdfb3270ea932023-11-18T17:17:09ZengMDPI AGPlants2223-77472023-06-011213241710.3390/plants12132417Grading Criteria of <i>Anthurium</i> DUS Quantitative Characteristics by Multiple ComparisonYunxia Chu0Li Ren1Shan Deng2Shouguo Li3Yiying Zhang4Hairong Chen5Institute for Agri-food Standards and Testing Technology, Shanghai Academy of Agricultural Sciences, Shanghai 201403, ChinaInstitute for Agri-food Standards and Testing Technology, Shanghai Academy of Agricultural Sciences, Shanghai 201403, ChinaInstitute for Agri-food Standards and Testing Technology, Shanghai Academy of Agricultural Sciences, Shanghai 201403, ChinaShanghai Sub-Center for New Plant Variety Tests, Ministry of Agriculture and Rural Affairs, Shanghai 201415, ChinaInstitute for Agri-food Standards and Testing Technology, Shanghai Academy of Agricultural Sciences, Shanghai 201403, ChinaInstitute for Agri-food Standards and Testing Technology, Shanghai Academy of Agricultural Sciences, Shanghai 201403, ChinaThe determination of the grades and interval of quantitative characteristics is an important job while we draft new distinctness, uniformity and stability (DUS) test guidelines. Grading criteria should be adjusted because of the effect of year and site; it is also a key task to establish applicable criteria in the DUS test. Excellent criteria will improve the accuracy of the DUS evaluation. In this study, we analyzed the variability and distribution patterns of nine quantitative characteristics of 251 anthurium varieties. Three methods were used to establish the grade criteria: the two standard deviation methods, the two LSD<sub>0.05</sub> methods and the multiple comparison method. The results showed that the coefficient of variation within varieties varied from 6.96% to 10.11%. The quantitative characteristics observed in this study did not follow a normal distribution, except spadix thickness at the middle and spathe size. In most characteristics, the standard deviations and LSD<sub>0.05</sub> were similar, except for spathe size. The state interval set by multiple comparison methods for every characteristic was variable, and its mean was about 1.25 times that of the other two methods. The process of establishing grading criteria using the multiple comparison method was simpler, and the criteria were more accurate, with a lower error rate.https://www.mdpi.com/2223-7747/12/13/2417grading criteria<i>Anthurium</i>multiple comparison |
| spellingShingle | Yunxia Chu Li Ren Shan Deng Shouguo Li Yiying Zhang Hairong Chen Grading Criteria of <i>Anthurium</i> DUS Quantitative Characteristics by Multiple Comparison Plants grading criteria <i>Anthurium</i> multiple comparison |
| title | Grading Criteria of <i>Anthurium</i> DUS Quantitative Characteristics by Multiple Comparison |
| title_full | Grading Criteria of <i>Anthurium</i> DUS Quantitative Characteristics by Multiple Comparison |
| title_fullStr | Grading Criteria of <i>Anthurium</i> DUS Quantitative Characteristics by Multiple Comparison |
| title_full_unstemmed | Grading Criteria of <i>Anthurium</i> DUS Quantitative Characteristics by Multiple Comparison |
| title_short | Grading Criteria of <i>Anthurium</i> DUS Quantitative Characteristics by Multiple Comparison |
| title_sort | grading criteria of i anthurium i dus quantitative characteristics by multiple comparison |
| topic | grading criteria <i>Anthurium</i> multiple comparison |
| url | https://www.mdpi.com/2223-7747/12/13/2417 |
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