Repeatability analysis of guava fruit and leaf characteristics
Psidium guajava L. (guava) is an important species that presents high genetic variability due to its mixed reproductive system, which is desired in breeding programs. Repeatability is an important tool for the selection of genotypes in pre-breeding studies. When genetic variability is present, the k...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Universidade Federal de Uberlândia
2018-12-01
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| Series: | Bioscience Journal |
| Subjects: | |
| Online Access: | http://www.seer.ufu.br/index.php/biosciencejournal/article/view/41953 |
| _version_ | 1818936792164859904 |
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| author | José Henrique Soler Guilhen Luina Ribeiro Noia Carolina de Oliveira Bernardes Wagner Bastos dos Santos Oliveira Tiago de Souza Marçal Marcia Flores da Silva Ferreira Adésio Ferreira |
| author_facet | José Henrique Soler Guilhen Luina Ribeiro Noia Carolina de Oliveira Bernardes Wagner Bastos dos Santos Oliveira Tiago de Souza Marçal Marcia Flores da Silva Ferreira Adésio Ferreira |
| author_sort | José Henrique Soler Guilhen |
| collection | DOAJ |
| description | Psidium guajava L. (guava) is an important species that presents high genetic variability due to its mixed reproductive system, which is desired in breeding programs. Repeatability is an important tool for the selection of genotypes in pre-breeding studies. When genetic variability is present, the knowledge regarding the number of samples to be used in repeatability studies is indispensable. This study aims to determine the number of necessary measures while optimizing resources and maintaining the reliability of the results for the variables evaluated in P. guajava. The experiment was carried out with genotypes from three Brazilian States: Espírito Santo, São Paulo, and Minas Gerais, and a total of 79 P. guajava genotypes were collected. The following characteristics were evaluated: young leaf length and width; developed leaf length and width; fruit length; fruit diameter and fruit cavity diameter; and fruit weight and pulp weight. For the evaluated characteristics, deviance, permanent phenotypic and temporary environment variance, coefficients of repeatability and determination, accuracy and the number of estimated measurements required were determined. We established that the number of measurements required in repeatability analysis for a coefficient of repeatability with a reliability of 80% is four, for the measurements of developed leaf width, pulp weight, fruit diameter, and fruit cavity diameter. |
| first_indexed | 2024-12-20T05:41:41Z |
| format | Article |
| id | doaj.art-c1c6f661d4944ad6a56f6c28c3b6908a |
| institution | Directory Open Access Journal |
| issn | 1981-3163 |
| language | English |
| last_indexed | 2024-12-20T05:41:41Z |
| publishDate | 2018-12-01 |
| publisher | Universidade Federal de Uberlândia |
| record_format | Article |
| series | Bioscience Journal |
| spelling | doaj.art-c1c6f661d4944ad6a56f6c28c3b6908a2022-12-21T19:51:27ZengUniversidade Federal de UberlândiaBioscience Journal1981-31632018-12-0135210.14393/BJ-v35n2a20198-4195341953Repeatability analysis of guava fruit and leaf characteristicsJosé Henrique Soler Guilhen0Luina Ribeiro Noia1Carolina de Oliveira Bernardes2Wagner Bastos dos Santos Oliveira3Tiago de Souza Marçal4Marcia Flores da Silva Ferreira5Adésio Ferreira6Universidade federal do espírito santoUniversidade federal do espírito santoUniversidade Federal do Espírito SantoUniversidade federal de santa catarinaUniversidade federal de viçosaUniversidade federal do espírito santoUniversidade federal do espírito santoPsidium guajava L. (guava) is an important species that presents high genetic variability due to its mixed reproductive system, which is desired in breeding programs. Repeatability is an important tool for the selection of genotypes in pre-breeding studies. When genetic variability is present, the knowledge regarding the number of samples to be used in repeatability studies is indispensable. This study aims to determine the number of necessary measures while optimizing resources and maintaining the reliability of the results for the variables evaluated in P. guajava. The experiment was carried out with genotypes from three Brazilian States: Espírito Santo, São Paulo, and Minas Gerais, and a total of 79 P. guajava genotypes were collected. The following characteristics were evaluated: young leaf length and width; developed leaf length and width; fruit length; fruit diameter and fruit cavity diameter; and fruit weight and pulp weight. For the evaluated characteristics, deviance, permanent phenotypic and temporary environment variance, coefficients of repeatability and determination, accuracy and the number of estimated measurements required were determined. We established that the number of measurements required in repeatability analysis for a coefficient of repeatability with a reliability of 80% is four, for the measurements of developed leaf width, pulp weight, fruit diameter, and fruit cavity diameter.http://www.seer.ufu.br/index.php/biosciencejournal/article/view/41953psidium guajava l.pre-breedingbiometric analysis |
| spellingShingle | José Henrique Soler Guilhen Luina Ribeiro Noia Carolina de Oliveira Bernardes Wagner Bastos dos Santos Oliveira Tiago de Souza Marçal Marcia Flores da Silva Ferreira Adésio Ferreira Repeatability analysis of guava fruit and leaf characteristics Bioscience Journal psidium guajava l. pre-breeding biometric analysis |
| title | Repeatability analysis of guava fruit and leaf characteristics |
| title_full | Repeatability analysis of guava fruit and leaf characteristics |
| title_fullStr | Repeatability analysis of guava fruit and leaf characteristics |
| title_full_unstemmed | Repeatability analysis of guava fruit and leaf characteristics |
| title_short | Repeatability analysis of guava fruit and leaf characteristics |
| title_sort | repeatability analysis of guava fruit and leaf characteristics |
| topic | psidium guajava l. pre-breeding biometric analysis |
| url | http://www.seer.ufu.br/index.php/biosciencejournal/article/view/41953 |
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