Skip to main content
ARS Home » Southeast Area » Stuttgart, Arkansas » Dale Bumpers National Rice Research Center » Docs » GSOR Collection: Cybonnet x Saber Lines
GSOR Collection: Cybonnet x Saber Lines
headline bar

GSOR 201 CS272, GSOR 202 CS324, and GSOR 203 CS353

Blast disease of rice is one of the most destructive diseases and is managed by using major blast resistance (R) genes. The Ptr gene in rice is an atypical blast R gene that confers resistance to a wide range of blast races. Here we release three blast resistant germplasm lines, designated as CS272, CS324, and CS353, with the Ptr gene selected from a cross of the US-adapted cultivars ‘Cybonnet’ and ‘Saber’. These lines were resistant to most blast races under greenhouse conditions, resistant to leaf blast in an upland blast nursery in Crowley, LA, and to panicle blast under flood conditions in Puerto Rico and Crowley. These lines are superior in panicle size and have many agronomic and grain-quality characteristics comparable to or better than those of both parents. These lines can be used in rice-breeding programs for improving blast resistance, quality, and yield and can be grown for premium long grain markets.