Severidade de doenças em maracujazeiro para identificação de fontes de resistência em condições de campo

Oliveira, E. J. de; Soares, Taliane Leila; Barbosa, C. de J.; Santos-Filho, H.P; Jesus, O. N. de

doi:10.1590/s0100-29452013000200018

Cited by 44 publications

(36 citation statements)

References 7 publications

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“…In this context, different authors have indicated the need for research focused on increasing the resistance of existing cultivars or on developing new cultivars using both intraspecific and interspecific crosses Meletti et al 2005;Faleiro et al 2005). The genetic variability and the gradient of resistance identified in this study reinforce the possibility, which was also presented by Oliveira et al (2013), of employing intraspecific crossing as a strategy to reduce the susceptibility of passion fruit cultivars to the primary diseases that affect passion fruit culture.…”

Section: Discussionsupporting

confidence: 80%

Characterization and selection of passion fruit (yellow and purple) accessions based on molecular markers and disease reactions for use in breeding programs

et al. 2014

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Passiflora edulis Sims, which is native to South America, stands out as a passion fruit species with major potential for fruit production and marketing. This species is popularly known as yellow or purple passion fruit, depending on the color of the fruits produced. Brazil is the major worldwide producer of passion fruit; however, the average productivity of the country is low compared with its potential for culture. Fungal, bacterial and viral pathogens are among the factors limiting the productivity of passion fruit. Furthermore, no existing cultivars exhibit both productivity and resistance to disease. To select genetic material that will be useful for core collections and for increasing the genetic resistance of passion fruit cultivars to pathogens, we characterized 36 accessions based on 23 microsatellite loci and six variables related to the reactions to three diseases (woodiness virus, scab and anthracnose). We identified 127 alleles (an average of 5.52 alleles per locus), 30 % of which were private for yellow or purple passion fruit accessions. Analysis of variance and mean comparison tests indicated differences in five of the six variables (p \ 0.05, Scott-Knott test). Differences between the average reactions of the yellow and purple passion fruit accessions were also observed for the symptoms of woodiness virus and anthracnose (p \ 0.05, Mann-Whitney test).Together with these results, molecular and phenotypic estimates allowed the identification of groups of preferential accessions for use in breeding programs, for example, accessions BGP029, 071, 168, 205 and 277.

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Section: Discussionsupporting

confidence: 80%

Characterization and selection of passion fruit (yellow and purple) accessions based on molecular markers and disease reactions for use in breeding programs

et al. 2014

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“…Among the factors that limit the productivity, the high incidence of disease is crucial because in general there are no varieties of yellow passion fruit with satisfactory resistance (MELETTI, 2011;OLIVEIRA et al, 2013). Among the diseases, it can be highlighted those caused by the fungus Fusarium oxysporum f. sp.…”

Section: H B Santos Et Almentioning

confidence: 99%

GROWTH, FRUIT SET, AND FUSARIOSIS REACTION OF YELLOW PASSION FRUIT GRAFTED ONTO Passiflora spp.

et al. 2016

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-Yellow passion fruit grafting on other Passiflora spp. may be an alternative technique for the production under biotic stresses, especially soil-borne diseases. This study evaluated the survival of yellow passion fruit to fusariosis grafted onto P. edulis, P. alata, P. gibertii and P. cincinnata, in the field in Cruz das Almas, State of Bahia, Brazil. Horticultural performance was evaluated as plant growth, flowering and fruit set up to 13 months after transplanting. The apical cleft hipocotyledonar grafting was used. Survival analysis to fusariosis was based on the detection of typical visual symptoms. Grafting in species of wild passifloras did not influence on the stem diameter or fruit set of the yellow passion fruit, even though the flowering of P. edulis grafted on P. alata was lower than P. edulis grafted on itself. Hipocotyledonar grafting of P. edulis on P. gibertii, P. cincinnata and P. alata resulted in similar survival rates to fusariosis in relation to plants grafted onto P. edulis up to 13 months after transplanting. Index terms: Passiflora spp., Fusarium oxysporum f. sp. passiflorae, performance, propagation. CRESCIMENTO, FRUTIFICAÇÃO E REAÇÃO A FUSARIOSE EMMARACUJAZEIRO AZEDO ENXERTADO EM Passiflora spp.RESUMO -A enxertia do maracujazeiro azedo em outras espécies de Passiflora spp. pode ser uma alternativa para a produção sob estresses bióticos, notadamente doenças do sistema radicular. Este trabalho avaliou a reação à fusariose de maracujazeiro azedo enxertado em P. edulis, P. alata, P. gibertii e P. cincinnata em condições de campo em Cruz das Almas, BA. O desempenho agronômico foi avaliado pelo crescimento, florescimento e produção de frutos até 13 meses após o plantio. A enxertia foi do tipo garfagem hipocotiledonar de topo em fenda cheia. Procedeu-se à análise de sobrevivência à fusariose ao longo do período de avaliação, baseando-se em sintomas visuais da doença. A enxertia em espécies de passifloras silvestres não alterou o diâmetro do caule nem a frutificação do maracujazeiro azedo, embora o florescimento de P. edulis enxertado em P. alata tenha sido inferior ao observado em P. edulis enxertado em si mesmo. A enxertia hipocotiledonar de P. edulis em P. gibertii, P. cincinnata e P. alata resultou em sobrevivência à fusariose similar às plantas enxertadas em P. edulis até 13 meses após o plantio a campo. Termos para indexação: Passiflora spp., Fusarium oxysporum f. sp. passiflorae, desempenho, propagação.1

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“…Fruits were collected randomly in the plot at the beginning of the maturation process and evaluated by grading scale (Junqueira et al, 2003;Oliveira et al, 2013). To evaluate viral disease in plants, assessments were performed considering the onset of symptoms on plants per plot using grading scale .…”

Section: Nunes De Jesus Et Al 2131mentioning

confidence: 99%

Evaluation of intraspecific hybrids of yellow passion fruit in organic farming

Jesus¹,

Soares²,

Girardi³

et al. 2016

Afr. J. Agric. Res.

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The objective of this work was to evaluate 14 hybrids intraspecific of yellow passion fruit aiming to select those with higher performance in an organic production system in Lençóis, Bahia, Brazil. The following variables were evaluated: Plant growth rate index, segregation for peel color, accumulated productivity, fruit physical-chemical attributes, severity of virus disease in plants and fruits, scabs in fruits and overall state of health of plants. Hybrids HFOP-05, BRS Sol do Cerrado and BRS Gigante Amarelo presented highest plant vigor with no direct relation to the percentage of flowering and fruitification of plants. Some hybrids presented yellow, light purple and dark purple peel color. Fruits with dark purple peel presented interesting chemical characteristics, such as lower acidity and greater ratio, providing sweeter flavor of the fruits. There was no differentiated response of the hybrids as to severity of the diseases evaluated. Leaf analysis showed relatively low concentration only for N, P and K. The hybrids selected, BRS Gigante Amarelo, BRS Sol do Cerrado, HFOP-08, HFOP-09, HFOP-11 and HFOP-12 are highlighted for productivity, physical characteristics of fruits and preference of the consumer market being considered an alternative for passion fruit producers that opt for a more environmental friendly production with greater market value.

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Severidade de doenças em maracujazeiro para identificação de fontes de resistência em condições de campo

Cited by 44 publications

References 7 publications

Characterization and selection of passion fruit (yellow and purple) accessions based on molecular markers and disease reactions for use in breeding programs

Characterization and selection of passion fruit (yellow and purple) accessions based on molecular markers and disease reactions for use in breeding programs

GROWTH, FRUIT SET, AND FUSARIOSIS REACTION OF YELLOW PASSION FRUIT GRAFTED ONTO Passiflora spp.

Evaluation of intraspecific hybrids of yellow passion fruit in organic farming

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