Asian Journal of Plant Pathology1819-1541xxxx-xxxxScience International10.3923/ajppaj.2017.148.155Squash mosaic virus on Cucumber Plants]]>FirmansyahDeni Widodo HidayatSri Hendrastuti 32017113Background 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.]]>Sevik, M.A. and Y. Toksoz,2008Squash mosaic virus (SqMV) infecting pumpkin and squash growing in Samsun, Turkey.]]>371525Coutts, B.,20062006Lestari, S.M. and E. Nurhayati,2014Squash mosaic virus on Cucurbitaceae].]]>108186, (In Indonesian)Kulikov, S.N., S.N. Chirkov, A.V. Il'ina, S.A. Lopatin and V.P. Varlamov,200642200203Lugtenberg, B. and F. Kamilova,200963541556Boonlertnirun, S., C. Boonraung and R. Suvanasara,2008184752Megasari, D., T.A. Damayanti and S. Santoso,2014Aphis craccivora Koch. using chitosan and its effect on transmission of Bean common mosaic virus strain Black eye cowpea (BCMV-BlC) on yard long bean].]]>117280, (In Indonesian)Mishra, S., K.S. Jagadeesh, P.U. Krishnaraj and S. Prem,2014Pseudomonas sp. under field conditions.]]>8347355Noiket, N., T. Boonthip and K. Riangwong,20142014pp: 252259Vasanthi, V.J., A. Kandan, A. Ramanathan, T. Raguchander, P. Balasubramanian and R. Samiyappan,20104314631472Asniwita, S.H. Hidayat, G. Suastika, S. Sujiprihati, S. Susanto and I. Hayati,201222181186, (In Indonesian)Susila, A.D.,20062006Ayo-John, E.I., P.M. Olorunmaiye, O.O. Odedara, O.B. Dada, K.O. Abiola and J.O. Oladokun,20146321325Simko, I. and H.P. Piepho,2012102381389Steel, R.G.D. and J.H. Torrie,19802nd Edn.,Pages: 633Pages: 633Babadoost, M.,20122012El Hadrami, A., L.R. Adam, I. El-Hadrami and F. Daayf,20108968987Compant, S., C. Clement and A. Sessitsch,201042669678Agbodjato, N.A., P.A. Noumavo, A. Adjanohoun, G. Dagbenonbakin and M. Atta et al.,2015Zea mays L.) crop to biofertilization with plant growth promoting rhizobacteria and chitosan under field conditions.]]>3566574Jelin, J., T.A. Selvakumar and M.S. Dhanarajan,2013513701375Aleksandrowicz-Trzcinska, M., A. Bogusiewicz, M. Szkop and S. Drozdowski,2015Pinus sylvestris L.) in a forest nursery.]]>631653176Rabea, E.I., M.E.I. Badawy, T.M. Rogge, C.V. Stevens, W. Steurbaut, M. Hofte and G. Smagghe,200662890897Glick, B.R.,20122012