Registration of ‘CP 13-4474’ sugarcane for sand soils

Authors: Islam, Md; SANDHU, HARDEV - University Of Florida; Zhao, Duli; Sood, Sushma; Momotaz, Aliya; BALTAZAR, MIGUEL - Florida Sugarcane League; Coto Arbelo, Orlando; DAVIDSON, WAYNE - Florida Sugarcane League; Gordon, Vanessa

Submitted to: Journal of Plant Registrations
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 8/15/2022
Publication Date: 11/7/2022
Citation: Islam, M.S., Sandhu, H.S., Zhao, D., Sood, S.G., Momotaz, A., Baltazar, M., Coto Arbelo, O., Davidson, W.R., Gordon, V.S. 2022. Registration of ‘CP 13-4474’ sugarcane for sand soils. Journal of Plant Registrations. 1-11. https://doi.org/10.1002/plr2.20259.
DOI: https://doi.org/10.1002/plr2.20259

Interpretive Summary: It is important to develop improved cultivars continually for contributing positively in both sugarcane production and crop sustainability in US agriculture. An improved cultivar, CP 13-4474 was released by the Florida sugarcane variety committee because of its high commercial recoverable sucrose (CRS), and economic profitability on the Florida mineral (sand) soils. It is resistance to brown rust, orange rust, sugarcane mosaic virus, and ratoon stunt diseases as well as moderate resistance to leaf scald, smut and yellow leaf syndrome. Based on results of nine harvests at three locations in late-stage replicated yield trials on sand soils, CP 13-4474 had 11.6% higher in CRS than the best check cultivar CP 96-1252. Additionally, this new cultivar gave 14.8% higher economic return than the mean economic profitability of three reference commercial cultivars. It also displayed superior resistance to brown and orange rust diseases. With its demonstrated resistances to disease, and enhanced sugar production capacity, CP 13-4474 is expected to positively influence both sugarcane production and crop sustainability in Florida.

Technical Abstract: ‘CP 13-4474’ (Reg. no. CV-209, PI 700305) sugarcane cultivar (a complex hybrid of Saccharum spp.) was released to growers in June 2021 for cultivating on sand soils in Florida after a decade-long advancement through cooperative research conducted by the USDA-ARS, the Florida Sugar Cane League Inc., and the University of Florida. It originated from a poly-cross at Canal Point (CP). The Florida Sugarcane Variety Committee released CP 13-4474 due to its high sugar yields, sucrose content on sand soils, and acceptable disease resistance. CP 13-4774 has demonstrated resistance to brown rust (caused by Puccinia melanocephala H. & P. Sydow), orange rust (caused by Puccinia kuehnii E.J. Butler), mosaic (caused by Sugarcane mosaic virus strain E),and ratoon stunt (caused by Leifsonia xyli subsp. xyli Evtushenko et al.) and moderate resistance to smut [caused by Sporisorium scitamineum(Syd.) M. Piepenbr. et al.], leaf scald (caused by Xanthomonas albilineans Ashby, Dowson), and yellow leaf syndrome (caused by Sugarcane yellow leaf virus). In late-stage yield trials, CP 13-4474sugar yields were 9.4% greater than that of the check variety ‘CL 88-4730’, while sucrose yields did not differ significantly from the reference check ‘CP 96-1252’. CP13-4474 displayed superior resistance to both brown and orange rusts and produced more commercial recoverable sucrose than all three tested reference checks over the same harvest trials. With its demonstrated resistance to diseases and elevated sugar production capacity, CP 13-4474 is expected to positively influence both sugarcane production and crop sustainability in Florida.