Phenotypic response of pumpkin and melon plants to infection by simple isolates of ZYMV and mixed ZYMV+SQMV
DOI:
https://doi.org/10.20873/jbb.uft.cemaf.v5n1.tavaresKeywords:
Curcubita sp., Cucumis melo, mixed infection symptomsAbstract
With this work, aimed to verify through artificial inoculation, the phenotypic response of plants pumpkin cv. 'Caserta' to isolates of ZYMV and ZYMV+SqMV and also check the phenotypic reaction in four genotypes of melon from an isolated mixed (ZYMV+SqMV), both coming from watermelon producing regions in the state of Tocantins. The study was conducted in a greenhouse with a screened proof aphid. The experimental design was completely randomized with five plants per plot and three replications. The inoculated plants were observed for symptoms as at 28, 33 and 38 days after first inoculation. Pumpkin plants, inoculated with simple isolate, the predominant symptoms exhibited were mosaic and parallel veins. In mixed infections there were more severesymptoms, progressing to narrowing and leaf deformation, and bubbles, parallel ridges and spur, compromising much of the leaf area of plants evaluated. In melon genotypes, the symptoms observed were more severe in Sunshine and Yellow. Genotypes in El dorado genotype was observed only mosaic and melon Valenciano was not observed symptoms.
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