| Registro completo |
| Provedor de dados: |
Bragantia
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| País: |
Brazil
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| Título: |
Quantification of floral abnormalities in a population generated from sexual polymorphism aiming at recurrent selection in papaya
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| Autores: |
Moreira,Nádia Fernandes
Pereira,Telma Nair Santana
Catarina,Renato Santa
Cortes,Diego Fernando Marmolejo
Vettorazzi,Júlio Cesar Fiorio
Ramos,Helaine Christine Cancela
Viana,Alexandre Pio
Pereira,Messias Gonzaga
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| Data: |
2019-06-01
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| Ano: |
2019
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| Palavras-chave: |
Carica papaya L.
Female sterility
Carpellody
ImageJ
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| Resumo: |
ABSTRACT The aim of this study was to estimate the percentage of deformed fruits (carpelloid, pentandric, and bananoid), summer sterility, repeatability coefficients, and correlations among the variables for floral abnormalities; and select genotypes withthe lowest incidence of deformed fruits and summer sterility. In theexperiment, which involved 254 plants, traits were evaluated using the digital-phenotypic method and the obtained images were processed and analysed using ImageJ v1.48 software with the Cell Counter plugin. Summer sterility had the highest percentage of occurrence in the evaluated periods. Based on the quantificationof total abnormalities, the 30 genotypes with the lowest incidence offloral abnormalities were selected. Summer sterility is the main problem of the papaya crop in terms of floral abnormalities. The non-significant correlations between the traits: NDF/TNF+NFN (number of deformed fruits/number of fruits + number of fruitless nodes) and NFS/TNF+NFN (number of fruitless nodes/number of fruits + number of fruitless nodes); NDF/TNF+NFN and NFN/SUM(number of fruitless nodes/sum of abnormalities); andNFS/TNF+NFN and NDF/SUM (number of deformed fruits/sum of abnormalities) indicate that the variables are independent of each other. Of the 254 evaluated progenies, at least 30 were identified as having potential for selection, with lower occurrence of total floral abnormalities.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052019000200158
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| Editor: |
Instituto Agronômico de Campinas
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| Relação: |
10.1590/1678-4499.20180197
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| Formato: |
text/html
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| Fonte: |
Bragantia v.78 n.2 2019
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| Direitos: |
info:eu-repo/semantics/openAccess
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