تاثیر سیانوباکتریوم و کود سولفات پتاسیم بر شاخص‏های رشدی گوجه‏فرنگی آلوده به نماتد مولد غده در شرایط گلخانه

this is the abstract; Meloidogyne javanica is one of the four common root-knot nematode species, which is more common in Iran than other species of this genus. Biological control is one of the least harmful methods of control this nematode. In this study, the effect of the cyanobacterium (Spirulina platensis) and potassium sulfate fertilizer on the control of M. javanica on tomato in the form of a completely randomized basic design with six treatments including 500 cc of cyanobacterium per each 3 kilogram of soil, 100 cc of cyanobacterium to per each 3 kilogram of soil, 500 cc of cyanobacterium + potassium sulfate fertilizer per 3 kilogram of soi, 100cc of cyanobacterium + potassium sulfate fertilizer per each 3 kilogram of soil and the infected plant control wich five replicates in Duncan's test (5%) was done. The data was analyzed with SAS 9.0 software. The results showed that the treatment with 500 cc of cyanobacteria per each 3 kilogram of soil had a maximum effect on nematode control than other treatments so showed a significant difference. So that the mean of fresh weight and length of aerial parts, length and fresh weight of roots of the mentioned treatment compared to control treatment, respectively, 8.82 against 4.82, 53.2 to 41.6, 1. 21 against to 17.3 and 5.18 compared with 10.9 grams were measured.