| Abstrakt: |
Study aimed to evaluate the efficacy of some plant extracts of Ginger plant (Zingibar officinale) and Cinnamomum plant (Cinnamomum zylanicum) to protect orange fruits from Penicillium digitatum, that causes green mold disease, isolated from infected orange fruits located in local markets in Najaf Governorate, Iraq. The concentrations of Cinnamomum plant extract showed efficacy against pathogenic fungus compared to concentrations of ginger extract, the Cinnamomum plant extract in the concentrations of (10, 15 and 20 mg/ml) inhibition of the fungi on Potato Dextrose Agar medium in Petri dishes, the diametrical growth rate of pathogen after 3 days of growth were (3.34, 3.74 and 3.6), respectively, compared to the concentration rate of 5 mg/ml and control treatment which gave (5.31 and 4.75) cm respectively. Cinnamomum plant extract also showed high inhibition efficiency in the growth of pathogenic P. digitatum, while the diametrical growth rate was 2.10 compared to the diametrical growth rate of fungus with the Ginger extract, which gave 6.16 cm. Results indicated all concentration of Cinnamomum extracts had led protection of orange fruits from infect with P. digitatum. Treatment of orange fruits soaked with Cinnamomum extracts (20 mg/ml) inoculated with sporulation suspension of P. digitatum (T6) was significantly affected by inhibiting the growth regions and the depth of infected fruits, it gave (1.60 and 0.73) cm respectively, compared to the treatment of T2 which gave the highest rate of growth regions and growth depth of the fungus P. digitatum reached (6.10 and 5.96) cm respectively. [ABSTRACT FROM AUTHOR] |
