جستجوی مقالات مرتبط با کلیدواژه « محلات » در نشریات گروه « گیاهپزشکی »

Carnation (Dianthus caryophyllus L.) is one of the four major exporting cut flowers from Iran. Carnation wilt caused by Fusarium oxysporum f.sp. dianthi is considered the most destructive diseases of plant in most carnation growing regions of the world . To investigate the possibility of using biological control, the growth inhibitory effects of five isolates of Trichoderma, including three isolates of Trichoderma harzianum obtained from Karaj (Th1), Shahrekord (Th2) and Hamedan (Th3), and two isolates T. virens (Tv) and T. atroviride (Ta) from Hamedan, studied in vitro on the F. oxysporum f.sp. dianthi isolated from Mahalat Carnation. The greatest growth inhibition in dual culture test was occurred with the Th3 isolate and the lowest inhibition observed by Ta. Culture extracts of Th1 isolate caused maximum inhibition of pathogen growth, while that of Th3 isolate showed minimal impact on its growth. Bioassay for production of antagonist volatile metabolites showed that the most growth inhibition was observed with the Ta isolate the least effective was recorded with Th3 isolate.

During a faunal study in the year 2014 on flowers and ornamental plants in Mahallat, Arak city (Markazi Province), several thrips species were collected. Among them, both genus and species of Chaetanaphothrips orchidii (Moulton, 1907) were recorded from Iran for the first time. Specimens were collected on aconite (Ranunculaceae).