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ARS Home » Southeast Area » Canal Point, Florida » Sugarcane Field Station » Research » Publications at this Location » Publication #406909

Research Project: Understanding and Incorporating Disease Resistance into New Sugarcane Cultivars

Location: Sugarcane Field Station

Title: Registration of ‘CP 15-2516’ for organic soils in Florida

item Sood, Sushma
item Momotaz, Aliya
item Coto Arbelo, Orlando
item BALTAZAR, MIGUEL - Florida Sugarcane League
item DAVIDSON, WAYNE - Florida Sugarcane League
item Islam, Md
item SANDHU, HARDEV - University Of Florida
item ZHAO, DULI - Former ARS Employee
item ROUNDS, ELLIOTT - Former ARS Employee

Submitted to: Journal of Plant Registrations
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 12/6/2023
Publication Date: 2/15/2024
Citation: Sood, S.G., Momotaz, A., Coto Arbelo, O., Baltazar, M., Davidson, W.R., Islam, M.S., Sandhu, H., Zhao, D., Rounds, E. 2024. Registration of ‘CP 15-2516’ for organic soils in Florida. Journal of Plant Registrations. 3:1-12.

Interpretive Summary: CP 15-2516, a sugarcane cultivar, was developed through cooperative research between USDA-ARS, the Florida Sugar Cane League, Inc., and the University of Florida. It was selected from a cross between a female CP 95-1039 and a male parents CP 06-2400. CP 15-2516 had significantly higher cane yield and economic index than the reference cultivars on muck (organic) soils in Florida. CP 15-2516 had an acceptable resistance level to leaf scald and ratoon stunt disease, smut, and yellow leaf at its release and an intermediate tolerance to freeze. Considering the agronomic, yield, and disease traits, CP 15-2516 was released by the Florida Sugarcane Variety Committee in June 2022 to growers for commercial use on muck soils.

Technical Abstract: ‘CP 15-2516’ (Reg. no. CV-215, PI 703029) sugarcane cultivar, a complex hybrid of Saccharum spp., was developed jointly by USDA-ARS, the University of Florida, and the Florida Sugar Cane League. CP 15-2516 was released in June 2022 for commercial cultivation on the Florida organic (muck) soils due to its high cane and sucrose yields, commercial recoverable sucrose (CRS), and economic index (EI). CP 15-2516 originated from CPX13-1630, a cross between a female parent (CP 95-1039) and a male parent (‘CP 06-2400’). CP 15-2516 is resistant to brown rust, orange rust, and Sugarcane mosaic virus strain E. CP 15-2516 harbors the Bru1 marker associated with brown rust resistance. CP 15-2516 is moderately resistant to leaf scald and ratoon stunt disease, smut, and yellow leaf. Based on the results of three harvest cycles over five locations in Stage 4 on muck soils, cane and sucrose yields of CP 15-2516 were 10.48% (181.31 Mg ha-1) and 11.49% (18.62 Mg ha-1) respectively, higher (P < .05) than those of the reference cultivar ‘CP 96-1252’. Compared with CP 96-1252, the EI of CP 15-2516 was significantly (P < .05) higher by 15% (3233 ha-1). The mean cane fiber content of CP 15-2516 was 138.7 kg Mg-1 and was 1% to 8% higher than the reference cultivars (‘CP 00-1101’, CP 96-1252, and ‘CPCL 05-1201’). CP 15-2516 flowers intermittently during January in Florida's climate. CP 15-2516 has a better freeze tolerance than commercial reference cultivars CP 00-1101 and CP 96-1252. CP 15-2516 is expected to positively contribute to the profitability and sustainability of the Florida sugarcane industry.