Comparing antifungal effects of Thyme and Caraway oils with Rovral-TS and Bavistin to control Fusarium solani causing wilt of Cumin
کد مقاله : 1026-11THCBIOCONTROL (R1)
نیما خالدی *1، فرشید حسنی2
1موسسه تحقیقات ثبت و گواهی بذر و نهال
2موسسه تحقیقات ثبت و گواهی بذر و نهال، سازمان تحقیقات، آموزش و ترویج کشاورزی، کرج، ایران
چکیده مقاله:
The fungus Fusarium solani is one of the most important soil-borne pathogens that causes damping-off, root rot and wilt in many agronomically important crops. Secondary metabolites of plants, as natural materials with ecological roles are important in plant defense responses. In this study, essential oils of Thyme (Thymus vulgaris L.) and Caraway (Carum carvi L.) were extracted by hydro-distillation and antifungal effect of these essential oils and fungicides Rovral-TS® (Iprodione-Carbendazim) and Bavistin® (Carbendazim) on F. solani (FS1) were investigated by mixing with medium (PDA) at different concentrations in vitro. In greenhouse assays, seed treatment with essential oils and fungicides with different concentrations was carried out to compare their effects on disease control. According to the results obtained by in vitro assays, that the thyme oil had higher inhibitory effect than caraway oil and fungicides as the minimum inhibitory concentration (MIC) of the essential oils of thyme and caraway were 759 and 882 ppm, respectively and for Rovral-TS® and Bavistin® were 985 and 1320 ppm, respectively. The minimum fungicidal concentration (MFC) of thyme and caraway oils were 1193 and 1269 ppm, respectively. In vivo, thyme oil at MIC concentration compared with caraway and fungicides showed higher reduction in disease severity and a significant increase in the growth factors such as germination, seedling height, fresh and dry weight of roots and shoots was observed compared with healthy control. These results indicate that thyme oil with suitable formulation could be used to control of Fusarium wilt disease of cumin.
کلیدواژه ها:
Biological control, Cumin, Fungicide, Secondary metabolites, Wilt disease.
وضعیت : چکیده برای ارائه به صورت پوستر پذیرفته شده است