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Full-Text Articles in Life Sciences
The Estimation Of Area, Water, Chlorophyll And Phenols Content In Trees Leaves Infected With Sooty Mold Disease Alternaria Alternata - Libya, Zahra El-Gali
Journal of the Arab American University مجلة الجامعة العربية الامريكية للبحوث
This study was conducted during the season of 2017-2018 to estimate the changes that might occur in leaves covered with sooty mold in the Omer Al-Mukhtar University periphery, El-Beida, Libya. The results indicated that the disease caused significant reduction in the leaf’s area from 158, 28.8 and 10cm2 in healthy leaves to 126.5, 23 and 7.5cm2 in infected leaves of fig, oleander and olive trees respectively. Also, water content decreased by (52.8%, 51.9% and 43.6%) in infected leaves compared with the healthy ones. Considering the effects on chlorophyll and phenols contents, data showed that sooty mold significantly influenced chl a …
The Inhibitory Effect Of The Extracts And Powders Of Three Medical Plants On Sclerotinia Sclerotiorum, Zahra El-Gali
The Inhibitory Effect Of The Extracts And Powders Of Three Medical Plants On Sclerotinia Sclerotiorum, Zahra El-Gali
Journal of the Arab American University مجلة الجامعة العربية الامريكية للبحوث
The study was conducted to test the effect of aqueous extracts and powders of leaves of Stinkweed (Peganum harmala) , Nettle (Urtica dioica) and Everlasting (Helichysum stoechas) on the viability of Sclerotinia sclerotiorum, which causes seeds rot and seedlings damping-off. All extracts and powders showed antifungal activity against the tested fungus. Among the plants, H. stoechas was the most effective followed by U. dioica. The antifungal effect may be due to the high content of phenols, flavonoids and tannins in plant extracts. The results showed that extracts or powders could be considered suitable alternative to chemical additives for the control …