Characteristics of resistance to the grain aphid Sitobion avenue in winter wheat

Autor:	H. J. B. Lowe
Rok vydání:	1984
Předmět:	biology Resistance (ecology) media_common.quotation_subject Homoptera Antibiosis Winter wheat food and beverages Aphididae biology.organism_classification Agronomy Sitobion avenae Poaceae Reproduction Agronomy and Crop Science media_common
Zdroj:	Annals of Applied Biology. 105:529-538
ISSN:	1744-7348 0003-4746
Popis:	SUMMARY Five stocks of winter wheat were resistant to S. avenae in glasshouse screening tests, where resistance was more evident in older than younger plants but different types of resistance were not separated. Antibiosis was measured from the growth and reproduction of caged individual aphids and antixenosis from the settling of adult aphids on detached leaf portions. Cvs Bounty, Rapier and Virtue were resistant due to antibiosis, whilst cv. Kador and line A4501-4E showed antixenosis. These and other differences indicated that these five wheat stocks probably include at least four distinct sources of resistance to S. avenae. The existence of different types of resistance could account for variability in the results of screening tests.
Databáze:	OpenAIRE
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