Registration of ‘CP 14-1934’ sugarcane for Florida organic soils

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

Submitted to: Journal of Plant Registrations
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 8/15/2022
Publication Date: 12/12/2022
Citation: Coto Arbelo, O., Davidson, W.R., Islam, M.S., Sandhu, H.S., Zhao, D., Sood, S.G., Momotaz, A., Baltazar, M., Gordon, V.S. 2022. Registration of ‘CP 14-1934’ sugarcane for Florida organic soils. Journal of Plant Registrations. 17:91-101. http://doi.org/10.1002/plr2.20260.
DOI: https://doi.org/10.1002/plr2.20260

Interpretive Summary: Florida is the top sugarcane producer in the United States, accounting for 2.04 tonnes of sugar produced in 2020. The new variety CP 14-1934 represents the results of continuous efforts of the Canal Point breeding program to develop new sugarcane varieties with superior agronomic performance and resistance to biotic and abiotic stresses for Florida production areas. CP 14-1934 was commercially released by the Florida sugarcane variety committee in 2020 for organic soils because of improved yields and disease resistance compared with checks. This new cultivar was resistant or moderately resistant to main diseases affected sugarcane in southern Florida. CP 14-1934 cane and sucrose yields were 17.8 and 19.8% higher than the mean of three reference commercial varieties. CP 14-1934, with an overall economic return 12.8% higher than the mean of three reference commercial varieties, is expected to increase the profitability and the efficiency in the use of resources of Florida sugarcane growers.

Technical Abstract: ‘CP 14-1940’ (Reg. no. , PI 700315) sugarcane cultivar (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. The Florida Sugarcane Variety Committee released CP 14-1490 in June 2021, to growers for commercial cultivation on organic (muck) soils. It was originated from a cross made at Canal Point (CP) on 29 November 2011 where CP 04-1844’ was the female parent and the male parent was CPCL 02-8021. CP 14-1490 was released for its high sucrose yields; acceptable commercial recoverable sucrose; and moderately resistances to both brown and orange rusts, leaf scald, resistances to Sugarcane mosaic virus strain E (mosaic), ratoon stunt disease and acceptable levels of susceptibility to smut. Yield data of CP 14-1490 and commercial reference checks (i.e., CP 00-1101, CP 96-1252, CPCL 05-1201) were collected from 15 harvests i.e. three crop cycles (plant cane, first and second ratoon) at five organic-soil locations in final-stage replicated yield trials. There was no significant difference in cane yield with all tested reference cultivars and no significant difference in sugar yield with CP 00-1101, CPCL 05-1201. When compared to CP 96-1252, CP 14-1490 had significantly (P = .05) higher sucrose yield (19.2%), and commercial recoverable sucrose (5%). CP 14-1490 tested negative for the Bru1 marker, which is linked to a quantitative major locus of brown rust resistance. CP 14-1490 could be considered moderately tolerant to freezing among 23 tested genotypes.