Evaluation of the sexual expression in a segreganting BC1 papaya population

Silva, F. F. da; Pereira, Messias Gonzaga; Junior, Pedro Corrêa Damasceno; Pereira, Telma Nair Santana; Viana, Alexandre Pío; Daher, R.F.; Ramos, Helaine Christine Cancela; Ferreguetti, G. A.

doi:10.12702/1984-7033.v07n01a03

Cited by 17 publications

(23 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…For the NDF, only cultivars H 10-60, H 36-45, L 78-08, and Golden showed differences between harvest seasons, with lower values in winter. The summer harvest provided a higher NCF and NDF (Table 3), as observed by Silva et al (2007). Martelleto et al (2011) evaluated the floral behavior of papaya in four cropping systems, and reported that the environmental and phenological conditions favorable to the production of normal fruits and carpeloids were the same, which confirms that there is a positive correlation between these variables.…”

Section: Resultssupporting

confidence: 55%

Productivity and quality of Formosa and Solo papaya over two harvest seasons

Barros

Kuhlcamp

Arantes

et al. 2017

Pesq. agropec. bras.

View full text Add to dashboard Cite

-The objective of this work was to evaluate the productivity and quality of papaya fruits (Carica papaya) of the Solo (12 genotypes) and Formosa (9 genotypes) heterotic groups over two harvest seasons. The experiment was conducted under field conditions in the municipality of Pinheiros, in the state of Espírito Santo, Brazil, in a randomized complete block design. Ten morpho-agronomic and physicochemical variables of the fruits were measured in winter (210-300 days after planting) and summer (450-540 days after planting). The data were subjected to the combined analysis of variance, to the breakdown of the genotype x environment interactions, and to the grouping of means by the Scott-Knott test. Although harvest season affected the evaluated characteristics, it did not alter the classification of the genotype. In the Solo group, the H 36-45 and UC 15 hybrids stand out due to their greater productivity, fruit weight, and soluble solids contents. In the Formosa group, the Rubi Incaper 511 cultivar shows greater productivity, higher number of commercial fruits, and lower number of deformed fruits over both evaluated harvest seasons.Index terms: Carica papaya, agronomic performance, environmental effect, genotype evaluation. Produtividade e qualidade de frutos de mamão Formosa e Solo em duas épocas de colheitaResumo -O objetivo deste trabalho foi avaliar a produtividade e a qualidade de frutos de mamoeiro (Carica papaya) dos grupos heteróticos Solo (12 genótipos) e Formosa (9 genótipos), em duas épocas de colheita. O experimento foi conduzido em condições de campo em Pinheiros, ES, em delineamento de blocos ao acaso. Dez variáveis morfoagronômicas e físico-químicas dos frutos foram avaliadas no inverno (210 a 300 dias após o plantio) e no verão (450 a 540 dias após o plantio). Os dados foram submetidos à análise de variância conjunta, à decomposição da interação genótipo x ambiente e ao agrupamento das médias pelo teste de Scott-Knott. Embora a colheita em diferentes épocas tenha influenciado as características avaliadas, não alterou a classificação dos genótipos. No grupo Solo, destacam-se os híbridos H 36-45 e UC 15, por suas maiores produção e massa do fruto e por seu alto teor de sólidos solúveis. No grupo Formosa, a cultivar Rubi Incaper 511 apresenta maior produção, maior número de frutos comerciais e menor número de frutos deformados nas duas épocas de colheita avaliadas.Termos para indexação: Carica papaya, desempenho agronômico, efeito ambiental, avaliação de genótipos.

show abstract

Section: Resultssupporting

confidence: 55%

Productivity and quality of Formosa and Solo papaya over two harvest seasons

Barros

Kuhlcamp

Arantes

et al. 2017

Pesq. agropec. bras.

View full text Add to dashboard Cite

show abstract

“…Some important traits, e.g., flesh thickness and consistency and skin texture need improvement (Costa and Pacova 2003). Several studies on papaya improvement have been conducted, though mostly focused on intraspecific improvement (Silva et al 2007, Silva et al 2008. It is therefore worth mentioning that the wild genera Jacaratia and Vasconcellea bear promising characteristics for papaya breeding programs, e..g, disease and cold resistance, among others.…”

Section: Introductionmentioning

confidence: 99%

Meiotic behavior of wild Caricaceae species potentially suitable for papaya improvement

Silva

Neto

Pereira

et al. 2012

Crop Breed. Appl. Biotechnol.

View full text Add to dashboard Cite

show abstract

“…However, a higher expression of this trait in the summer has been observed in other studies with papaya under the environmental conditions of Hawaii (Awada 1958, Nakasone et al 1972 and in Brazil (Silva et al 2007a, Damasceno Junior et al 2008, indicating that factors other than temperature may be have a considerable influence on this trait. In the treatments, significant sensitivity to sex reversal was observed in 115 BC 1 S 1 , followed by 16 BC 1 S 1 .…”

Section: Discussionmentioning

confidence: 61%

“…The expression of NPFr was zero in the four seasons for 115 BC 1 S 1 , demonstrating a superior performance to elite genotypes 'Golden' and SS783. Silva et al (2007a) argue that the malformation of flowers and consequently, of fruit in segregating generations from this backcrossing program are probably partly due to genetic inheritance of the genotype Cariflora since in dioecious plants this malformation would never be expressed. In contrast, the donor parent is an elite genotype planted frequently for commercial purposes, with greater uniformity and low level of malformations, which was confirmed by the data presented here.…”

Section: Discussionmentioning

confidence: 99%

“…This issue is considered complex and intriguing in view of the lethal factor associated with the dominant alleles responsible for hermaphroditism and masculinity (Storey 1953, Ming et al 2007, aside from the influence of genetic and environmental factors on both (Awada 1958, Arkle Junior and Nakasone 1984, Silva et al 2007a, Damasceno Júnior et al 2008. The combination of these factors is possibly responsible for the high degree of instability of hermaphrodite plants in terms of sex expression; a variation of flowers to carpelloid and pentandric forms or sex reversal are possible.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation