Abstract
An in vitro growth system was used to determine the virulence of two samples of Striga gesnerioides from Zakpota in southern Benin. Cowpea variety B301, previously considered resistant to all races of S. gesnerioides, was susceptible to both samples of the parasite. Two other cowpea varieties, 58–57 and IT81D-994, were totally resistant. Resistance in 58–57 was associated with a hypersensitive necrosis of infected roots, whilst IT81D-994 supported production of small S. gesnerioides tubercles with stems which failed to develop. Striga gesnerioides from southern Benin is the fourth race of the parasite to be identified, and the first with virulence on variety B301. The implications for breeding cowpeas with resistance to S. gesnerioides are discussed.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
Abbreviations
- IITA:
-
International Institute of Tropical Agriculture
- LARS:
-
Long Ashton Research Station
- SAFGRAD:
-
Semi-Arid Food Grain Research and Development
References
Aggarwal, V.D., 1991. Research on cowpea-Striga resistance at IITA. In: S.K., Kim (Ed.), Combating Striga in Africa, pp. 90–95. IITA, Ibadan.
Aggarwal, V.D. & J.T., Ouedraogo, 1989. Estimation of cowpea yield loss from Striga infestation. Trop Agric 66: 91–92.
Gbehounou, G., W.S., Egbers, J.A.C., Verkleij & A.H., Pieterse, 1991. A survey on Striga infestation in Borgou and Atacora province in Benin. In: J.K., Ransom, L.J., Musselman, A.D., Worsham & C., Parker (Eds.), Proceedings of the 5th International Symposium of Parasitic Weeds, p. 484. CIMMYT, Nairobi.
Kim, S.K. 1992. Polygenic resistance alone can offer stability. IITA Research 5: 20–21.
Lane, J.A. & J.A., Bailey, 1991. Resistance of cowpea to Striga gesnerioides. In: K., Wegmann & W., Forstreuter (Eds.), Progress in Orobanche Research. Proceedings of the International Workshop on Orobanche Research, Obermarchtal 1989, pp. 344–350. Erberhard-Karls-Universität, Tübingen.
Lane, J.A. & J.A., Bailey, 1992. Resistance of cowpea and cereals to the parasitic angiosperm Striga. Euphytica 63: 85–93.
Lane, J.A., J.A., Bailey & P.J., Terry, 1991. An in vitro growth system for studying the parasitism of cowpea (Vigna unguiculata) by Striga gesnerioides. Weed Res 31: 211–217.
Lane, J.A., J.A., Bailey, R.C., Butler & P.J., Terry, 1993. Resistance of cowpea [Vigna unguiculata (L.) Walp.] to Striga gesnerioides (Willd.) Vatke, a parasitic angiosperm. The New Phytol 125: 405–412.
McCullagh, P. & J.A., Nelder, 1989. Generalized Linear Models, 2nd Ed. Chapman & Hall, London.
Parker, C., 1991. Protection of crops against parasitic weeds. Crop Protec 10: 6–22.
Parker, C. & T.I., Polniaszek, 1990. Parasitism of cowpea by Striga gesnerioides: variation in virulence and discovery of a new source of host resistance. Ann Appl Biol 116: 305–311.
Payne, R.W., P.W., Lane, A.E., Ainsley, K.E., Bicknell, P.G.N., Digby, S.A., Harding, P.K., Leech, H.R., Simpson, A.D., Todd, P.J., Verrier, R.P., White, J.D., Gower, G. Tunnicliffe, Wilson & L.J., Patterson, 1987. Genstat 5 Reference Manual. Oxford University Press, Oxford.
Rachie, K.O., 1985. Introduction. In: S.R., Singh & K.O., Rachie (Eds.), Cowpea Research, Production and Utilisation, pp. xxii-xxviii. John Wiley & Sons, Chichester.
Riches, C.R., 1987. The identification of resistance to Alectra vogelii Benth. (Scrophulariaceae) in cowpea. In: H.C., Weber & W., Forstreuter (Eds.), Parasitic Flowering Plants. Proceedings of the 4th International Symposium of Parasitic Flowering Plants, pp. 701–708. Philipps-Universitat, Marburg.
Rubin, B., 1991. Herbicide resistance in weeds and crops, progress and prospects. In: J.C., Caseley, G.W., Cussans & R.K., Atkin (Eds.), Herbicide Resistance in Weeds and Crops, pp. 387–414. Butterworth-Heinemann, Oxford.
Singh, B.B. & A.M., Emechebe, 1990. Inheritance of Striga resistance in cowpea genotype B301. Crop Sci 30: 879–881.
Singh, B.B. & A.M., Emechebe, 1991. Breeding for resistance in Striga and Alectra in cowpea. In: J.K., Ransom, L.J., Musselman, A.D., Worsham & C., Parker (Eds.), Proceedings of the 5th International Symposium of Parasitic Weeds, pp. 303–305. CIMMYT, Nairobi.
Steel, J., 1992. The response of domesticated varieties and wild relatives of cowpea (Vigna unguiculata) to infection by Striga gesnerioides. M.Sc. Crop Protection Project Report. University of Bristol, UK.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Lane, J.A., Moore, T.H.M., Child, D.V. et al. Virulence characteristics of a new race of the parasitic angiosperm, Striga gesnerioides, from southern Benin on cowpea (Vigna unguiculata). Euphytica 72, 183–188 (1993). https://doi.org/10.1007/BF00034156
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00034156