Parasitic Flowe- ring Plants. Proceedings of the 4th International Symposium on Parasitic Flowering Plants, August 1987, Philipps Universitaet Marburg, F.R.G. 1987. many figures. XVI,848 p. 4to. Paper bd.

Contents: Abu-Irmaileh, B.E.: Eastern dodder (Cuscuta monogyna Vahl.)distribution, host range and its response to glyphosate applications/Agbobli, C.A. and B.Huguenin: Evaluation agronomique du probleme duparasitisme du Striga asiatica sur Mais dans le sud Toto/ Aggarwal,V.D.: Latest in cowpea Striga research at IITA/ Al-Menoufi, O.A. andF.M.F.Zaitoun: Studies on Orobanche spp. 9: Effect of seed age andtreatment with growth regulators on seed germination/ Al-Menoufi, O.A.,M.A.S.Othman and N.A.El-Safwani: Studies on Orobanche spp. 10: Chemicalidentity of germination stimulant of Orobanche seed/ Babiker, A.G.T.,A.M.Hamdoun, and M.G.Mansi: Influence of some soil and environmentalfactors on response of Striga hermonthica (Del.) Benth. seeds toselected germination stimulants/ Bebawi, F.F.: Fertilization influenceon the management of forage sorghum infested with witchweed/ Beck,B.D.A.: The effect of attack by Alectra vogelii (Benth.) on the yield ofnjugo beans (Vigna subterranea (L.) Verdc./ Beliz, T. del C.:Reproductive mechanisms and host preferences in five Cuscuta L. species(Cuscutaceae) from California, Mexico, and Central America/ etc.