Registration of CP 11-1640 sugarcane

Authors: Zhao, Duli; DAVIDSON, WAYNE - Florida Sugarcane League; Gordon, Vanessa; Islam, Md; SANDHU, HARDEV - University Of Florida; Sood, Sushma; BALTAZAR, MIGUEL - Florida Sugarcane League; MCCORD, PER - Washington State University; COTO ARBELO, ORLANDO - University Of Florida; Momotaz, Aliya

Submitted to: Journal of Plant Registrations
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 11/18/2020
Publication Date: 4/5/2021
Citation: Zhao, D., Davidson, W.R., Gordon, V.S., Islam, M.S., Sandhu, H.S., Sood, S.G., Baltazar, M., McCord, P.H., Coto Arbelo, O., Momotaz, A. 2021. Registration of ‘CP 11-1640’ sugarcane. Journal of Plant Registrations. 15:326-336. https://doi.org/10.1002/plr2.20123.
DOI: https://doi.org/10.1002/plr2.20123

Interpretive Summary: CP '11-1640’ sugarcane was developed through cooperative research conducted by the USDA-ARS, the University of Florida, and the Florida Sugar Cane League, Inc. and released by the Florida Sugarcane Variety Committee (FSVC) to growers in Florida for commercial production use on sandy soils in June 2019. It was selected from a polycross made at Canal Point (CP) in the 2008-2009 crossing season with a CP sugarcane breeding line CP 01-2390 as female parent. CP 11-1640 was released by FSVC because of its high cane and sucrose yields, acceptable commercial recoverable sugar, and its resistance to most major diseases. Based on results of 12 harvests with three crops (plant cane, first ratoon, and second ratoon) at four locations in final-stage replicated yield trials on sand soils and compared with three reference cultivars (CL 88-4730, CP 96-1252, CPCL 97-2730), CP 11-1640 had 13.4-16.9% higher cane yield, 12.0-12.8% higher sucrose yield, and 10.9-16.9% higher economic index than CL 88-4730 and CPCL 97-2730 and did not differ from CP 96-1252 in any of these traits. Cane fiber concentration of CP 11-1640 was equivalent to that of CL 88-4730, but slightly higher than those of CP 96-1252 and CPCL 97-2730. CP 11-1640 was moderately tolerant to freezing among 18 genotypes tested.

Technical Abstract: ‘CP 11-1640’ (Reg. no. CV-199, PI 695085) sugarcane (a complex hybrid of Saccharum spp.) was developed through cooperative research conducted by the USDA-ARS, the University of Florida, and the Florida Sugar Cane League, Inc. and released by the Florida Sugarcane Variety Committee (FSVC) to growers for commercial cultivation on mineral (sand) soils in Florida in June 2019. It was selected from a polycross made at Canal Point (CP) on 2 January 2009 with a CP sugarcane breeding line CP 01-2390 (female parent). The male parent of CP 11-1640 was unknown and could be any one of clones used in the polycross. CP 11-1640 was released by FSVC because of its high cane and sucrose yields and acceptable commercial recoverable sucrose, and its resistance to brown rust, orange rust, leaf scald, Sugarcane mosaic virus strain E (mosaic), and smut. Based on results of 12 harvests with three crops (plant cane, first ratoon, and second ratoon) at four locations in final-stage replicated yield trials on sand soils and compared with three reference cultivars (CL 88-4730, CP 96-1252, CPCL 97-2730), CP 11-1640 had significantly higher cane yield (13.4-16.9%), sucrose yield (12.0-12.8%), and economic index (10.9-16.9%) than CL 88-4730 and CPCL 97-2730, and did not differ from CP 96-1252 in any of these traits. Cane fiber concentration of CP 11-1640 (138.9 kg Mg-1) was equivalent to that of CL 88-4730, but slightly higher than those of CP 96-1252 and CPCL 97-2730. CP 11-1640 was considered to be moderately tolerant to freezing among 18 genotypes tested.