Occurrence of Passion Fruit Woodiness Disease in the Coastal Lowlands of Kenya and Screening of Passion Fruit Genotypes for Resistance to Passion Fruit Woodiness Diseas

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dc.contributor.authorAsande, Lydia K.
dc.contributor.authorOmbori, Omwoyo
dc.contributor.authorOduo, Richard O.
dc.contributor.authorNchore, Shem B.
dc.contributor.authorNyaboga, Evans N.
dc.date.accessioned2024-01-29T13:39:52Z
dc.date.available2024-01-29T13:39:52Z
dc.date.issued2023
dc.descriptionArticleen_US
dc.description.abstractBackground Passion fruit (Passifora edulis [Sims]) is an important economic fruit crop in Kenya, grown for domestic, regional and international markets. However, passion fruit production is constrained by both biotic and abiotic stresses. Passion fruit woodiness disease (PWD) complex is the most injurious viral disease responsible for yield losses of up to 100%. In East Africa, it is caused by potyviruses. The most efective way to manage PWD is by using resistant cultivars. The objectives of this study were to determine the occurrence of passion fruit woodiness disease in selected counties at the Coastal lowlands of Kenya and screen farmer preferred passion fruit genotypes for resistance to PWD. Results In the present study, it was established that all surveyed farms in Kwale and Kilif counties displayed passion fruit woodiness virus disease symptoms. The highest disease incidence of 59.16% and 51.43% was observed at Kilif and Kwale counties, respectively. A signifcant diference (p<0.05) in symptom severity was observed within the tested genotypes with purple and banana passion fruits having the highest and lowest AUDPC values, respectively, both under greenhouse and feld conditions. ACP ELISA assays using universal potyvirus antiserum (Agdia Inc., Elkhat, IN) confrmed that the observed characteristic symptoms of woodiness disease were as a result of potyvirus infection. Conclusions The fndings herein indicate that PWD is widespread in both Kilif and Kwale counties with low to moderate disease incidence and severity. The observed prevalence, incidence and severity levels of PWD in Kwale and Kilif counties could be aggravated by poor management practices such as non-sterilization of pruning tools, intercropping with target crops and crop rotation with the same target crops. Response of passion fruit genotypes to woodiness viruses was genotype dependent. There is need to sensitize farmers on the cause and spread of PWD and management strategies in order to increase production and enhance the quality of fruits.en_US
dc.identifier.citationAsande, L. K., Ombori, O., Oduor, R. O., Nchore, S. B., & Nyaboga, E. N. (2023). Occurrence of passion fruit woodiness disease in the coastal lowlands of Kenya and screening of passion fruit genotypes for resistance to passion fruit woodiness disease. BMC Plant Biology, 23(1), 544.en_US
dc.identifier.otherhttps://doi.org/10.1186/s12870-023-04546-8
dc.identifier.urihttps://ir-library.ku.ac.ke/handle/123456789/27323
dc.language.isoenen_US
dc.publisherSpringer Natureen_US
dc.subjectPassiforaen_US
dc.subjectPassion fruit woodiness diseaseen_US
dc.subjectVirusesen_US
dc.subjectDisease resistanceen_US
dc.titleOccurrence of Passion Fruit Woodiness Disease in the Coastal Lowlands of Kenya and Screening of Passion Fruit Genotypes for Resistance to Passion Fruit Woodiness Diseasen_US
dc.typeArticleen_US
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