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| Crevelari,Jocarla Ambrosim; Durães,Nayara Norrene Lacerda; Bendia,Laila Cecília Ramos; Vettorazzi,Julio Cesar Fiorio; Entringer,Geovana Cremonini; Ferreira Júnior,José Arantes; Pereira,Messias Gonzaga. |
| ABSTRACT The aim of the current study is to estimate the correlation coefficients and the consequence of genotypic correlations on direct and indirect effects through path analysis between agronomic traits of maize hybrids used for silage production. Eight (8) topcross hybrids and seven (7) checks were analyzed in completely randomized blocks, with six replications, in two environments: Campos do Goytacazes and Itaocara counties – Rio de Janeiro State, in the crop year 2015/2016. The following agronomic traits were assessed: plant height, first ear height, culm diameter, number of ears, ear yield with straw at silage maturity, ear yield without straw at silage maturity, grain yield at silage maturity, grains ratio in the fresh matter and fresh matter... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays L.; Topcross; Tester; Multicollinearity. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052018000200243 |
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| Vettorazzi,Julio Cesar Fiorio; Santa-Catarina,Renato; Poltronieri,Tathianne Pastana de Sousa; Cortes,Diego Fernando Marmolejo; Azevedo,Alinne Oliveira Nunes; Miranda,Daniel Pereira; Santana,Josefa Grasiela Silva; Ramos,Helaine Christine Cancela; Pereira,Messias Gonzaga. |
| ABSTRACT: The growing demand for quality of papaya by the domestic and international markets requires the development of genotypes that are capable of incorporating traits, such as high yield and fruit quality. This study estimated the genetic parameters and the specific combining ability of F4 papaya lines crossed to the SS-72/12 tester to identify genotypes with higher genetic value for hybrid production. We evaluated 169 treatments consisting of 62 topcross hybrid combinations, 97 F5 lines, and 10 controls in a 13 × 13 lattice design with five replicates and two plants per plot. The following traits were evaluated: plant height (PH), stem diameter (SD), first-fruit insertion height (FFIH), number of marketable fruits (NMF), number of deformed fruits... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Carica papaya L.; Papaya breeding; Topcross; Genetic parameter. |
| Ano: 2021 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162021000201102 |
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| Cortes,Diego Fernando Marmolejo; Santa-Catarina,Renato; Azevedo,Alinne Oliveira Nunes; Poltronieri,Tathianne Pastana de Sousa; Vettorazzi,Julio Cesar Fiorio; Moreira,Nádia Fernandes; Ferreguetti,Geraldo Antônio; Ramos,Helaine Christine Cancela; Viana,Alexandre Pio; Pereira,Messias Gonzaga. |
| ABSTRACT: The selection of superior Carica papaya (L) genotypes depends on the availability of genetic variability and on the favorable and simultaneous response of the genotypes to those traits of most interest. However, manual phenotyping (MP) demands intensive labor, is time-consuming and expensive. The aim of the current study is to access the efficiency of image-based phenotyping (IBP) in estimating genetic parameters and in selecting F4 recombinant inbred lines. The genetic parameters and values were estimated in accordance with the REML/BLUB procedure and combined selection using the selection index based on standardized genetic values. The majority of traits accessed through IBP showed experimental coefficients of variation similar to those found... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Carica papaya; Digital phenotyping; Genetic gains; Genetic parameters. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162018000300208 |
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