Reaction of sour-passion fruit genotypes to bacteriose under field conditions in Federal District, Brazil

This study aimed to characterize the genetic variability in commercial accessions of passion fruit from the Federal District, Brazil, by RAPD markers. Genetic analyses were done with leaf samples of 30 accessions. DNA samples were amplified by RAPD technique, and respective markers converted into a binary matrix, from which the genetic distances between the accessions were estimated. Clustering analyis based on genetic distances allowed to detect a wide range of genetic variabillity among the accessions of sour passion fruit, and to separate them from the two sweet passion fruit. The graphical positioning of 'BRS Ouro Vermelho' confirms its potential to improve the genetic variability of commercial varieties of sour passion fruit. Dispersal of genetic distances among commercial accessions of sour passion fruit supports evidence for different genetic origins of the materials planted in the Federal District. The verified genetic variability indicates the potential success of future breeding programs for this region.

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Reaction of Sour Passion Fruit Lineages and Hybrids to Bacterial Spot Caused by Xanthomonas axononopodis pv. passiflorae Under Protected Cultivation and Field Conditions

Journal of Agricultural Science ◽

10.5539/jas.v13n9p112 ◽

2021 ◽

Vol 13 (9) ◽

pp. 112

Author(s):

Isadora Nogueira ◽

Anne Pinheiro Costa ◽

José Ricardo Peixoto ◽

Michelle Souza Vilela

Keyword(s):

Disease Severity ◽

Passion Fruit ◽

Field Conditions ◽

Bacterial Spot ◽

Spot Disease ◽

Protected Cultivation ◽

Severity Scores ◽

Bacterial Spot Disease ◽

Grading Scale ◽

Sour Passion Fruit

Passion fruit is infected by many plant pathogens, including Xanthomonas axonopodis pv. passiflorae, causing bacterial spot disease. This disease has been impaired orchards all over Brazil, resulting in low yield and production. In addition, it results in premature death of plants in the field. This study aimed to analyze the reaction of sour passion fruit genotypes to bacterial spot in leaves under protected cultivation (Experiment 1) and the bacterial spot severity in fruits under field conditions (Experiment 2). Experiment 1 was carried out as a randomized block design (RBD) with subdivided plots, composed of 24 treatments (genotypes), three replications, five plants per plot, and five evaluation dates. Bacterial spot incidence and severity were evaluated using a 0 to 5 grading scale. Evaluations were carried out at a 7-day interval after disease symptoms first appeared. Genotypes differed for mean disease severity and incidence. The bacterial spot disease evaluations showed that genotypes MAR20#46 P3 R4 X Rosa Claro R4 and MD 16 P3 X MAR20#39 P1 R4 presented the lowest scores for the disease incidence in the leaves. S2L AP R1, MAR20#19 ROXO R4 X ECRAM P3 R3, and MD 16 P3 X MAR20#39 P1 R4 were the genotypes with the lowest disease severity scores. Experiment 2 consisted of a RBD with 24 treatments, three replications, and seven plants per plot. Severity assessments were monthly performed on five fruits per plot, totaling three evaluation dates. In this experiment, the percentage of total fruit area with necrotic lesions was measured using a 1 to 4 grading scale. Bacterial spot severity assessments in fruits identified interactions between genotypes and evaluation dates (p ≤ 0.05). The lineages S2L MAR 20#15 R4 and S2L MAR20#19 R2 showed the lowest mean severity scores of bacterial spot in fruit. The genotypes with the lowest mean scores were selected to continue the breeding program.

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Reaction of yellow passion fruit genotypes to septoriosis in field conditions of the Federal District, Brazil

Acta Horticulturae ◽

10.17660/actahortic.2020.1299.37 ◽

2020 ◽

pp. 251-256

Author(s):

G.S. Miranda ◽

J.R. Peixoto ◽

M.S. Vilela ◽

M.C. Pires ◽

D. da S. Nóbrega

Keyword(s):

Federal District ◽

Passion Fruit ◽

Field Conditions ◽

Yellow Passion Fruit

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Multivariate analysis to quantify genetic diversity and family selection in sour passion fruit under recurrent selection

Euphytica ◽

10.1007/s10681-020-02740-5 ◽

2021 ◽

Vol 217 (1) ◽

Author(s):

Amanda Fernanda Nunes Ferreira ◽

Willian Krause ◽

Maria Helena Menezes Cordeiro ◽

Alexandre Pio Viana ◽

Eileen Azevedo Santos ◽

...

Keyword(s):

Genetic Diversity ◽

Multivariate Analysis ◽

Recurrent Selection ◽

Passion Fruit ◽

Family Selection ◽

Sour Passion Fruit

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Phenology of the production of flowers and fruits of wild and hybrid species of the genus Passiflora

Revista Brasileira de Fruticultura ◽

10.1590/0100-29452018188 ◽

2018 ◽

Vol 40 (2) ◽

Cited By ~ 1

Author(s):

Danilo Akio de Sousa Esashika ◽

Fábio Gelape Faleiro ◽

Nilton Tadeu Vilela Junqueira

Keyword(s):

Central Region ◽

Wild Species ◽

High Potential ◽

Passion Fruit ◽

Brazilian Savanna ◽

Breeding Programs ◽

Hybrid Species ◽

Floral Buds ◽

Sour Passion Fruit

Abstract Wild species of passion fruit have characteristics that could be used in the passiflora culture, among them the production of fruits in the off-season of the sour passion fruit. The objective of this work was to evaluate the phenology of flowers and fruits production in wild species cultivated in the Brazilian Savanna Central Region. For each access, a 1-meter-long strip (2 m2) was evaluated for the presence of flowers and fruits from January 2015 to December 2016. The hybrid and wild species of passiflora that produce floral buds, flowers and fruits during the off-season of passion fruit sour include: BRS Céu do Cerrado (P. incarnata x P. edulis), P. alata Dryand, P. bahiensis Klotzsch, P. coccinea Aubl., P. maliformis L., P. quadriglandulosa Rodschied, P. auriculataKunth, P. decaisneana G. Nicholson, P. sidifolia M. Roem., P. suberosa L., P. tholozanii Sacco, P. quadrangularis x P. alata. It was also verified the presence of species and hybrids with high ornamental potential due to the beauty of their flowers and their production during the whole year, such as: P. suberosa L., P. tholozanii Sacco, P. coccinea x P. setacea, P. coccinea x P. quadrifaria. These species and hybrids have high potential for passiflora breeding programs as a source of genes of interest.

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HISTOLOGICAL ANALYSIS AND PERFORMANCE OF SOUR PASSION FRUIT POPULATIONS UNDER DIFFERENT ROOTSTOCKS RESISTANT TO Fusarium spp

Revista Brasileira de Fruticultura ◽

10.1590/0100-29452018274 ◽

2018 ◽

Vol 40 (1) ◽

Author(s):

Moisés Ambrósio ◽

Willian Krause ◽

Celice Alexandre Silva ◽

Laís Alves Lage ◽

Natan Ramos Cavalcante ◽

...

Keyword(s):

Histological Analysis ◽

Block Design ◽

Welding Process ◽

Anatomical Study ◽

Optical Microscope ◽

Passion Fruit ◽

Randomized Block Design ◽

Physical And Chemical ◽

Sour Passion Fruit

ABSTRACT The present study aimed to describe histological traits of the graft welding process and evaluate the effect of rootstocks on the physical and chemical traits and the productivity of sour passion fruit populations. The experiment was arranged in a randomized block design, in a 4x2 + 4 factorial scheme (cultivars / canopy x rootstocks), three replicates and nine plants per plot. Commercial cultivars and populations and Passiflora alata and P. nitida rootstocks, in addition to ungrafted plants were used as canopy. Cleft grafting was the grafting type adopted. Traits analyzed such as productivity and physical and chemical quality of fruits were submitted to analysis of variance and compared by the Tukey test. The canopy morphology was evaluated according to descriptors of the Ministry of Agriculture, Livestock and Supply. Grafting was carried out for each graft/rootstock combination for histological analysis. Sections were obtained by freehand cuts, stained and mounted on semi-permanent slides, examined under optical microscope and photomicrographed. Rootstocks affected the early cultivation and reduced productivity and number of fruits of passion fruit populations. Grafting did not affect the quality of fruits or the canopy morphology. Considering the complete culture cycle, P. alata species is able to be used as rootstock. The anatomical study demonstrates the occurrence of better compatibility in the connection of P. edulis tissues on P. alata, compared to grafting on P. nitida.

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Standard area diagram set for scab quantification in trilobed leaves of the sour passion fruit

Ciência Rural ◽

10.1590/0103-8478cr20190309 ◽

2020 ◽

Vol 50 (3) ◽

Author(s):

Anne Pinheiro Costa ◽

José Ricardo Peixoto ◽

Luiz Eduardo Bassay Blum ◽

Alexandre Bosco de Oliveira

Keyword(s):

Correlation Coefficient ◽

Bias Correction ◽

Systematic Errors ◽

Passion Fruit ◽

Coefficient Of Determination ◽

Concordance Correlation Coefficient ◽

Concordance Correlation ◽

Improve Accuracy ◽

Severity Levels ◽

Sour Passion Fruit

ABSTRACT: The study aimed to develop and validate a standard area diagram set (SADs) to improve accuracy, precision, and reproducibility in the assessment of scab severity in trilobed leaves of the sour passion fruit. The SADs comprised six severity levels (1%; 3%; 6%; 11%; 21%; and 33%). The SADs increased the accuracy of the estimates by reducing the constant and systematic errors, and the tendency to overestimate the actual severity, limited the number of evaluators who presented this trend, in addition to increasing the bias correction factor. The inexperienced evaluators were the ones that benefited the most from the SADs use. Once the SADs was introduced, 80% and 100% evaluators gave estimates free from constant and systematic errors, respectively. The improvement in precision was verified by the increase in the coefficient of determination and Lin’s concordance correlation coefficient, by reducing absolute errors and increasing the reproducibility of the estimates.

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Assessment of resistance of hybrids and lineages of passion fruit to bacteriosis under protected cultivation

Bioscience Journal ◽

10.14393/bj-v36n4a2020-48021 ◽

2020 ◽

Vol 36 (4) ◽

Author(s):

Janlylle Ruama Yankovich Arrifano ◽

José Ricardo Peixoto ◽

Michelle Souza Vilela ◽

Solange da Costa Nogueira ◽

Thiago Campos De Oliveira ◽

...

Keyword(s):

Genetic Resistance ◽

Passion Fruit ◽

Bacterial Spot ◽

Xanthomonas Axonopodis ◽

Affected Area ◽

Injured Area ◽

Protected Cultivation ◽

Diagrammatic Scale ◽

Yellow Passion Fruit ◽

Sour Passion Fruit

Yield and longevity of yellow passion fruit have been reduced by diseases such as the bacterial spot caused by Xanthomonas axonopodis pv. passiflorae. Genetic resistance has been confirmed as the most efficient and economical correct option to minimize this disease problem. Aiming at it, the objective of this research was to evaluate the incidence, severity and progression of the disease in 12 genotypes of sour passion fruit, in seedling stage in nursery greenhouse after inoculation of Xanthomonas axonopodis pv. passiflorae. The inoculation was performed with an isolate collected in the Pipiripau Rural Nucleus, Brasilia-DF, named UnB-1397 (1x106 CFU/mL), through induction of injuries. There were performed four assessments, with interval of 7 days except the first which was performed 11 days after inoculation. The incidence was estimated by the percentage of plants affected. To evaluate the severity, it was used the diagrammatic scale validated by Costa et al. (2018), with adaptations, using the measurement of the affected area by necrotic lesions on the leaf. All genotypes were susceptible to bacteriosis, 5 being considered moderately susceptible: F1 BRS Pérola do Cerrado x Rosa Intenso, Mar20#21, Mar20#15b, Mar20#24xMar20#40 and FB200PL4R2 x Mar20#2005, with a mean of severity ranging from 11 to 25% of injured area in leaves.

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