Knowledge Center Catalog

Inheritance of resistance to russian wheat aphid, Diuraphis noxia (Homoptera: Aphididae) in two wheat lines

Tolmay, V.

Inheritance of resistance to russian wheat aphid, Diuraphis noxia (Homoptera: Aphididae) in two wheat lines - Addis Ababa (Ethiopia) CIMMYT : 1999 - Printed

The Russian wheat aphid, Diuraphis noxia, is a serious pest of wheat in South Africa. The use of D. noxia resistant cultivars may reduce the impact of this pest on cereal production, at the same time reducing environmental risks and minimizing control costs. The objective of the study was to determine the inheritance of D. noxia resistance present in the lines OSU ID 2808 (Triticum aestivum) and Aus 22498 (Triticum aestivum vavilovii) in order to ensure their judicious use in a backcross breeding programme. Resistant lines OSU ID 2808 and Aus 22498 were crossed with the susceptible cultivar Tugela after being screened with D. noxia. Resistance reactions of the F1, F2 plants and individual F2-plant derived F3 families indicated that the resistance in both genotypes is controlled by single dominant genes. It is unknown whether these genes are the same or not.


English

92-9146-058-3


Breeding methods
Diuraphis noxia
Genetic inheritance
Pests of plants
Resistance to injurious factors
Triticum aestivum
Plant breeding

CIMMYT

International Maize and Wheat Improvement Center (CIMMYT) © Copyright 2021.
Carretera México-Veracruz. Km. 45, El Batán, Texcoco, México, C.P. 56237.
If you have any question, please contact us at
CIMMYT-Knowledge-Center@cgiar.org