Report of several broomrape (Orobanche) species as new parasitic weeds of rapeseed fields of Golestan and Ilam provinces in Iran

Document Type : Research Paper


1 Iran Plant Protection Research Institute, Agricultural Research, Education, and Extension Organization(AREEO), Tehran. Iran

2 Golestan Agricultural and Natural Research and Education Center, Gorgan


The genus Orobanche is one of the most important parasitic weeds worldwide in several dicotyledon plants such as mung bean, rapeseed, bean, potato, tobacco, tomato, and carrot. The damage of Orobanche spp. in rapeseed is significant and, in different regions of the world, they may cause 5% to 100% grain yield loss. So far, the presence of 39 species of Orobanche has been confirmed in Iran, but an accurate report on the presence of weed species in the Iranian rapeseed fields has not been published yet. Based on the studies conducted during the 2017-2019 cropping seasons, five parasitic species of Orobanche were identified and confirmed for the first time in the rapeseed fields of Golestan and Ilam Provinces. O. nana, O. oxyloba, and O. mutelii  were reported from Golestan  Province (Gonbad Township, Simin Shahr, Gamishli Nazar, Ghareh Tappeh, Bandar Torkman and  Ghareh Tappeh), and O. aegyptiaca and O. hirtiflora from Ilam Province (Dehloran Township, Musian and Dasht-e-Abbas). 


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