Short Communications

Resistance in wheat to maize streak virus

Published in: South African Journal of Plant and Soil
Volume 8, issue 2, 1991 , pages: 110–111
DOI: 10.1080/02571862.1991.10634591
Author(s): D.B. ScottSmall Grain Centre, Republic of South Africa, H.A. van NiekerkSmall Grain Centre, Republic of South Africa

Abstract

Sixteen spring wheat cultivars were screened for resistance to maize streak virus (MSV) in the eastern Transvaal where the disease often attains epidemic proportions in wheat and maize. In this area four cultivars were resistant, two were susceptible and ten showed intermediate reactions to the virus. Tests on F1 plants from crosses between resistant and susceptible cultivars showed that resistance is partially dominant. The observed variation in reaction of cultivars to MSV in different geographical areas is attributed to varying numbers of effective vectors as well as to the occurrence of different strains of the virus.

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