Location: Sugarcane Field StationTitle: Registration of ‘CP 14-1934’ sugarcane for Florida organic soils
|Coto Arbelo, Orlando|
|DAVIDSON, WAYNE - Florida Sugarcane League|
|SANDHU, HARDEV - University Of Florida|
|BALTAZAR, MIGUEL - Florida Sugarcane League|
Submitted to: Journal of Plant Registrations
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 8/15/2022
Publication Date: 12/13/2022
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. 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 14-1934’ (Reg. No. CV-210, PI: 700310) 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. It was selected from a bi-parental cross made at the USDA–ARS Sugarcane Field Station in Canal Point, FL, in December 2011with the cultivars CP 07-2460 used as the female parent and CP 06-2335 used as the male parent. Average cane and sucrose yield of CP 14-1934 was 182.27 Mg ha-1 and 19.36 Mg ha-1, respectively. Regarding to the economic index (i.e., overall profitability), CP 14-1934 was superior to the checks CP 96-1252 and CPCL 051201, and similar to the check CP 00-1101. CP 14-1934 is resistant to brown rust (Puccinia melanocephala H. & P. Sydow), orange rust (Puccinia kuehnii E.J. Butler), sugarcane mosaic virus (SCMV), and ratoon stunting disease (RSD) caused by Leifsonia xyli subsp. xyli. This new variety is also moderately resistant to leaf scald Xanthomonas albilineans Ashby, Dowson), and moderately susceptible to smut [Sporisorium scitamineum (Syd.) M. Piepenbr., M. Stoll & Oberw.]. CP 14-1934 tested positive for the Bru1 gene which is an indicator of brown rust resistance. These susceptibility levels are within an acceptable range for commercial production in southern Florida. Lastly, CP 14-1934 demonstrates moderate tolerance to freezing conditions. This cultivar was released in June 2021 to be cultivated on organic soils in Florida.