Orobanche cumana Wallr. – a root parasitic weed that causes immense damage to sunflower crop, is a polymorphic species characterized by the existence of a series of biotypes, called physiological races, which differ depending ...

The article is a synthesis of some studies on the identification of broomrape races originating from China and the determination of the level of intra- and interpopulation variability based on the morphometric parameters ...