New Race ofPlasmopara halstediiVirulent on Resistant Sunflowers in South Dakota
- 1 January 1981
- journal article
- research article
- Published by Scientific Societies in Plant Disease
- Vol. 65 (10) , 842-843
- https://doi.org/10.1094/pd-65-842
Abstract
A new race of P. halstedii capable of overcoming the PI2 monogenic resistance in sunflower (H. annuus) was found in a hybrid demonstration plot near Brandt. None of the known sunflower genes resistant to P. halstedii are effective against this race.This publication has 0 references indexed in Scilit: