Orobanche Rapum Extract is an extract of Orobanche rapum, Orobanchaceae

The seeds of parasitic plants of the genera Striga and Orobanche will only germinate after induction by a chemical signal exuded from the roots of their host.

Lastly, obligate holoparasitic behavior originated with the loss of the photosynthetic process, seen in the genus Orobanche.

Yet, it is not known whether the varieties accepted by other Member States for inclusion in their national catalogues are resistant to Orobanche spp.

Directive D-98-06: Interim Import requirements of parasitic plants: Cuscuta, Striga, and Orobanche.

Directive 98-06: Interim Import requirements of parasitic plants: Cuscuta, Striga, and Orobanche.

Directive D-98-06: Interim Import requirements of parasitic plants: Cuscuta, Striga, and Orobanche.

D- 98-06: Interim Import requirements of parasitic plants: Cuscuta, Striga, and Orobanche

D- 98-06: Interim Import requirements of parasitic plants: Cuscuta, Striga, and Orobanche

The common catalogue of varieties of agricultural plant species shall indicate varieties of Helianthus annuus which have been thus assessed as resistant to Orobanche spp.

Directive D-98-06: Interim Import requirements of parasitic plants: Cuscuta, Striga, and Orobanche.

The resistance to Orobanche spp. of varieties of Helianthus annuus represents an important factor for the cultivation of this species in Bulgaria and varieties which are not resistant should be considered unsuitable.

Member States shall notify the list of varieties which have been thus assessed as resistant to Orobanche spp. to the other Member States and the Commission within 20 days after the notification of this Decision, at the latest.

Orobanche species are obligate parasitic plants that establish vascular connections to roots of host plants from which they draw nutrients and water.

Orobanche species are regulated at the genus level under Canada’s Plant Protection Act; however, O. ludoviciana is an exception because it is a native plant in Canada.