Germination stimulants produced by Vigna unguiculata Walp cv. Saunders Upright.
Alectrol, a germination stimulant, for seeds of Alectra vogelii and Striga gesnerioides was isolated from root exudates of the host plant Vigna unguiculata [cowpeas] cv. Saunders Upright. Its spectroscopic data implied a chemical structure closely related to (+)-strigol. The compound was more active than strigol in stimulating seeds of A. vogelii and S. gesnerioides.