اثر فشار اسمزي و pH بر رشد رويشي سه گونه فوزاريوم

Effects of water potential and pH on growth of Fusarium species

Effects of five level of osmotic potential and three levels of pH on the growth of three species of Fusarium including Fusarium semitectum, F. moniliform and F. solani, isolated from potato and wheat fields in Golestan province were studied. The experiment was conducted on potato dextrose agar (PDA) media in six replicates. Results showed that the most favorable potential for all species was -IMPa and the most favorable pH was 5.6, 5.6 and 6.5 for F. semitectum, F. solani, and F. moniliforme respectively, While the most unfavorable potential was 0, 0 and -2MPa for F. semitectum, F. solani and F. moniliforme, respectively. The most unfavorable pH was 4.5 for F. semitectum and F. solani and 5.6 for F. moniliforme.