Initial vegetative growth and survival analysis for the assessment of Fusarium wilt resistance in Passiflora spp.

Fusarium oxysporum f. sp. passiflorae isolates display variable virulence in Passiflora edulis Sims seedlings

“…Among the diseases caused by soil pathogens, Fusarium wilt, caused by the fungus Fusarium oxysporum f. sp. passiflorae (FOP), has major impact on passion fruit culture since there is no effective means of control or management strategies (Lima et al 2018(Lima et al , 2019Melo et al 2019;Pereira et al 2019). Disease control is complex since the pathogen survives for a long period in the soil as chlamydospores (Bennett and Davis 2013).…”

“…Disease control is complex since the pathogen survives for a long period in the soil as chlamydospores (Bennett and Davis 2013). This problem has harmed passion fruit cultivation for decades and accounts for up to 90% mortality in plants grown in sites with known history of this disease (Pereira et al 2019).…”

“…This process obstructs the conductive tissue hindering water and nutrient transportation. It leads to plant wilt and death in less than a week in field conditions; under greenhouse conditions plant death occurs within ~24 h after wilt onset (Ortiz et al 2014;Ferreira et al 2015;Lima et al 2019;Pereira et al 2019). The use of genetically improved varieties is one of the best strategies accepted by producers to overcome the disease.…”

Genetic parameters, correlation and repeatability of agronomic characters of yellow passion fruit genotypes in three harvest cycles

“…The genetic breeding programs of sour passion fruit (Passiflora edulis Sims) aims to obtain genotypes with high productive potential and fruit quality, such as high juice yield and content of soluble solids and low acidity. In addition, resistance is necessary to the main pathogens that shorten the lifespan of orchards in different regions of Brazil (Lima et al 2018;Pereira et al 2019;Santos et al 2019).…”

“…This acceleration is particularly interesting for the selection of yellow passion fruit, since the lifespan of the crop is declining due to the high incidence and severity of diseases (Oliveira et al 2013;Lima et al 2018;Pereira et al 2019). Under ideal conditions, the culture is maintained commercially for up to four years, but this falls to one year in the presence of diseases caused by viruses and fungi, such as fusarium wilt (Oliveira et al 2013;Pereira et al 2019). On the other hand, passion fruit propagated by seeds can start fruiting five to eight months after planting, which can allow more than one evaluation in the productive cycle of the crop.…”