Identification of Russian Wheat Aphid (Homoptera: Aphididae) Resistance in Wheat

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Abstract
Greenhouse and growth chamber evaluations were used to determine sources of resistance in wheat to populations of the Russian wheat aphid, Diuraphis nona (Mordvilko), in Idaho. Sources of resistance to D.noxia previously identified in South Africa were confirmed as resistant to the Idaho population. Low levels of resistance were also identified in three breeding lines from Idaho, one breeding line from Texas, and the variety ‘Treasure.’ Five new sources of resistance from Iran and the Soviet Union (PI 47545, PI 94355, PI 94365, PI 94460, and PI 151918) were also identified.

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