Registration of 'CP 11‐2248' sugarcane for Florida organic soils. Issue 3 (9th June 2020) - Zhao, D.
Abstract: 'CP 11‐2248' (Reg. no. CV‐193, PI 692134) sugarcane (a complex hybrid of Saccharum spp.) was developed by the USDA–ARS, the University of Florida, and the Florida Sugar Cane League, Inc., and released to Florida growers for organic (muck) soils in June 2018. CP 11‐2248 was developed from a polycross made at Canal Point, FL, on 16 Dec. 2009, with a breeding line CP 06‐2664 as the female parent. The male parent was unknown and could be any one of the clones used in the polycross. CP 11‐2248 was released for commercial use as an improved sugarcane cultivar because of its acceptable levels of resistance or tolerance to brown rust, orange rust, smut, leaf scald, and mosaic. CP 11‐2248 was moderately susceptible to ratoon stunting disease and Sugarcane yellow leaf virus in Florida. Based on the results of 19 harvests of three crops (plant cane, first ratoon, and second ratoon) in the final‐stage (i.e., Stage 4) replicated yield trials carried out at seven locations with muck soils in Florida, CP 11‐2248 had equivalent or slightly higher sucrose yield than check cultivars CP 96‐1252 and CP 00‐1101. CP 11‐2248 may be poor in response to freezing temperatures based on the field tests in north Florida for temporal sucrose deterioration.