Description:
HA-BSR4 was selected from the cross HA 89/3/HA 458//NMSHA 89/PI 494573. HA 89 (PI 599773) is an inbred maintainer line. The nuclear male-sterile line NMSHA 89 (PI 559477) possesses a single recessive nuclear male sterility gene ms9. HA 458 (PI 655009) is a high oleic and downy mildew resistant germplasm. PI 494573 is a an accession of wild annual Helianthus argophyllus collected in Texas in 1985 and identified as resistant to Sclerotinia basal stalk rot.