Phytopathology (1996) 86, p. S56 (Pratt)

Robert G. Pratt (1996)
Selection for resistance to Sclerotinia trifoliurum in alfalfa by leaf-tissue assays
Phytopathology 86 (11 suppl.), S56-S56
Abstract: Unifoliate leaves, first trifoliate leaflets, and later leaves were excised from plants, incubated on agar in Petri dishes, and inoculated with mycelium of S. trifoliorum. Tissues were scored according to development of necrosis. Plants selected from cultivar Delta by leaf-tissue assays for resistance, susceptibility, and at random were poly-crossed separately. Progeny of resistant plants expressed greater resistance than other progeny when evaluated by leaf-tissue and whole-plant assays, and by natural infection in the field. Leaf-tissue assays provide an efficient means to screen for resistance to S. trifoliorum in alfalfa.

Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Sclerotinia trifoliorum	Alfalfa/lucerne (Medicago sativa)