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Asian Journal of Plant Pathology
  Year: 2017 | Volume: 11 | Issue: 3 | Page No.: 148-155
DOI: 10.3923/ajppaj.2017.148.155
 
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Chitosan and Plant Growth Promoting Rhizobacteria Application to Control Squash mosaic virus on Cucumber Plants

Deni Firmansyah, Widodo and Sri Hendrastuti Hidayat

Abstract:
Background and Objective: Squash mosaic virus (SqMV) is a seed-borne virus infecting Cucurbitaceae, including cucumber plants. The SqMV cause systemic infections in plants and it is very difficult to find the effective control strategies to reduce its spread. Chitosan and Plant Growth Promoting Rhizobacteria (PGPR) has been reported to suppress plant diseases. The objective of this study was to determine the potential of chitosan and PGPR to reduce disease intensity caused by SqMV and enhance plant growth on cucumbers. Methodology: Cucumber cultivars was first screened by blotter test and dot immunobinding assay (DIBA) for virus detection. Application of chitosan and PGPR was given as seed treatment before planting seeds and as foliar spray or soil drench during plant growth. Data was subjected to statistical analysis using two-way ANOVA and means were separated by DMRT p<0.05. Results: Virus detection from seeds of several cucumber cultivars indicated high incidence of SqMV infection, i.e., 72.22-100%. Application of chitosan and PGPR caused delay incubation period, reduce disease severity as well as titer of virus especially on generative phase (4-7 weeks after planting). In addition, chitosan and PGPR application increased plant growth especially plant height. Conclusion: Application of chitosan and PGPR as individual or combination treatment effectively enhanced plant growth and suppressed disease severity. Therefore, application of chitosan and PGPR should be recommended to control disease caused by SqMV on cucumber.
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How to cite this article:

Deni Firmansyah, Widodo and Sri Hendrastuti Hidayat, 2017. Chitosan and Plant Growth Promoting Rhizobacteria Application to Control Squash mosaic virus on Cucumber Plants. Asian Journal of Plant Pathology, 11: 148-155.

DOI: 10.3923/ajppaj.2017.148.155

URL: https://scialert.net/abstract/?doi=ajppaj.2017.148.155

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