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Toit, F. du

Resistance to Diuraphis noxia in wheat: Screening techniques and identification of resistance - 1990 - Printed

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The appearance of Diuraphis noxia (Mordvilko) (Hemiptera: Aphididae) in South Africa in 1978 as a major pest of wheat led to a search for sources of resistance for use in breeding programs. Resistance was identified in Triticum monococcum L. but proved difficult to transfer to T. aestivum L. Recently renewed efforts were made to find sources of resistance in T. aestivum. Genotypes from the countries of origin of D. noxia were screened using a new greenhouse technique. Two T. aestivum entries were identified as resistant to D. noxia. Further tests revealed high levels of antibiotic and antixenotic resistance to D. noxia in both entries. A


English

ISBN: 968-6127-39

Subjects--Topical Terms:
Africa
Africa south of Sahara
Anglophone africa
Aphididae
Aphidoidea
Arthropoda
Diuraphis
Gramineae
Hemiptera
Homoptera
Insecta
Pests of plants
Resistance to injurious factors
Southern Africa
Sternorrhyncha
Triticum

Dewey Class. No.: 91-013517