TY  - REP
AU  - Toit,F.du
ED  - World Perspectives on Barley Yellow Dwarf International Workshop
TI  - Resistance to Diuraphis noxia in wheat:  Screening techniques and identification of resistance
SN  - 968-6127-39
U1  - 91-013517 
PY  - 1990///
KW  - Africa
KW  - Africa south of Sahara
KW  - Anglophone africa
KW  - Aphididae
KW  - Aphidoidea
KW  - Arthropoda
KW  - Diuraphis
KW  - Gramineae
KW  - Hemiptera
KW  - Homoptera
KW  - Insecta
KW  - Pests of plants
KW  - Resistance to injurious factors
KW  - Southern Africa
KW  - Sternorrhyncha
KW  - Triticum
KW  - AGROVOC
N1  - 18 ref
N2  - 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
T2  - Burnett, P.A. (ed.). World perspectives on barley yellow dwarf. Proceedings. Mexico, DF (Mexico). CIMMYT. 1990. p. 453-456
ER  -