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Resistance in sunflowers helianthus annuus to sunflower moth homeosoma electellum

Resistance in sunflowers helianthus annuus to sunflower moth homeosoma electellum

Iowa State Journal of Research 54(3): 391-400

Sunflower introductions were evaluated in the field at Ames, Iowa [USA] from 1975-1978 for resistance to the sunflower moth, H. electellum. Of the large-headed sunflowers evaluated, 13 entries consistently had considerably lower sunflower moth infestation and damage than 3 commercial cultivars. Those with the least infestation and damage were PI 172906, PI 204578 and PI 380569. Infestation was less in small-headed, wild-type sunflowers than in those with large, single heads. Infestation and damage were lower in tall late-flowering introductions than in the short, early-flowering introductions.

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Accession: 006320269

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