Registration of CP 73‐1547 Sugarcane 1 (Reg. No. 59)

‘CP 00‐2180’ (Reg. No. CV‐134, PI 654093) 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 was released to growers in Florida in September 2007. CP 00‐2180 was selected from a self‐cross of cultivar HoCP 91‐552 made at Canal Point, FL, in January 1998. Based on its high cane yields and fiber content (16%), HoCP 91‐552 was released as a cultivar for bioenergy in Louisiana. CP 00‐2180 was released and recommended for sand soils in Florida because of its high plant cane and acceptable ratoon per hectare yields of cane and sucrose and commercial recoverable sucrose on sand soils, and its resistance to smut [caused by Ustilago scitaminea (Sydow & P. Sydow)], brown rust (caused by Puccinia melanocephala H. & P. Sydow), orange rust (caused by Puccinia kuehnii E.J. Butler), leaf scald [caused by Xanthomonas albilineans (Ashby) Dowson], Sugarcane mosaic virus strain E, and ratoon stunting disease (caused by Clavibacter xyli subsp. xyli Davis) in Florida.

Section: Characteristicsmentioning

confidence: 99%

Registration of ‘CP 00‐2180’ Sugarcane

Glaz¹,

Edmé²,

Davidson³

et al. 2009

“…These cuttings were then stored overnight under a plastic tarp and planted in four replications of one‐row plots that were 5‐m long the following day. The number of infected stalks per plot was compared with that of CP 78‐1628 and CP 73‐1547 (CSR 455; Miller et al, 1982), the commercial checks. CP 73‐1547 is no longer grown commercially, but CP 78‐1628 was grown on 7.4% of the commercial acreage in Florida in 2011 (Rice et al, 2012).…”

Section: Methodsmentioning

confidence: 99%

Registration of ‘CP 04‐1844’ Sugarcane

Glaz¹,

Edmé²,

Davidson³

et al. 2013

‘CP 04‐1844’ (Reg. No. CV‐153, PI 664935) 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 was released in Florida on 20 Sept. 2011. CP 04‐1844 was selected from the cross X01‐0336 (CP 97‐1989 × CP 84‐1198) made at Canal Point, FL on 5 Dec. 2001. The female parent, CP 97‐1989, was a high‐tonnage cultivar released for sand soils in Florida but was not grown extensively because it became susceptible to brown rust (caused by Puccinia melanocephala H. & P. Sydow) after its release. The male parent, CP 84‐1198, is a cultivar with moderate tonnage and sucrose levels that peaked at 5.1% of the commercial acreage in Florida and is still grown commercially. CP 04‐1844 was tested in the final selection stage (stage 4) on sand soils in Florida and was released because of its high cane and sucrose yields and acceptable commercial recoverable sucrose on these soils, as well as for its resistance to brown rust, orange rust (caused by Puccinia kuehnii E.J. Butler), and smut (caused by Ustilago scitaminea H. & P. Sydow) and its moderate resistance to Sugarcane mosaic virus strain E (mosaic) and ratoon stunt (caused by Leifsonia xyli subsp. xyli Evtushenko et al.) in Florida. CP 04‐1844 is susceptible to leaf scald (caused by Xanthomonas albilineans Ashby, Dowson) and Sugarcane yellow leaf virus. The freeze tolerance of CP 04‐1844 was at least equal to that of cultivar CP 89‐2143 during 2 yr of testing. CP 89‐2143 is considered to have acceptable freeze tolerance for Florida.

“…From the first‐ratoon of the replicated A‐Plots, 89 genotypes were advanced to the Screen Test in November 2002. The 89 genotypes from the replicated A‐Plots and six reference cultivars (USSC proprietary cultivars CL 77‐0797 and CL 89‐5189, CP 73‐1547 [Miller et al, 1982], CP 78‐1628, CP 84‐1198 [Glaz et al, 1994], and CP 89‐2143 [Glaz et al, 2000]) were planted in yield trials in commercial fields at three USSC farms, Townsite (Margate sand soil [siliceous, hyperthermic Mollic Psammaquent]), Bourne (Pahokee muck soil [euic, hyperthermic Lithic Haplosaprist]), and Ritta (Terra Ceia muck soil). All three trials had two replications of each genotype planted in randomized complete block designs in plots with three rows 10.5 m long.…”

Section: Methodsmentioning

confidence: 99%

Registration of ‘CPCL 97‐2730’ Sugarcane

Milligan

Davidson²,

Edmé

et al. 2009

Research to develop ‘CPCL 97‐2730’ (Reg. No. CV‐137, PI 655943) sugarcane (a complex hybrid of Saccharum spp.) was initiated by the United States Sugar Corporation (USSC) and completed cooperatively by the USDA–ARS, the University of Florida, and the Florida Sugar Cane League, Inc. CPCL 97‐2730 was released to growers in Florida in December 2008. CPCL 97‐2730 was selected from a cross of USSC proprietary genotypes CL 75‐0853 × CL 88‐4730 made at Clewiston, FL, in December 1996. The female parent, CL 75‐0853, had high commercial recoverable sucrose (CRS) but because of low cane yields was not used extensively by USSC. The male parent, CL 88‐4730, is a high‐yielding genotype that USSC is evaluating in commercial fields with sand and muck soils for possible extended use. CPCL 97‐2730 was released because of its acceptable yields of cane and CRS on sand soils and its resistance to smut (caused by Ustilago scitaminea Syd. & P. Syd.), brown rust (caused by Puccinia melanocephala Syd. & P. Syd.), orange rust [caused by P. kuehnii (Kruger) E. Butler], leaf scald [caused by Xanthomonas albilineans (Ashby) Dowson], and sugarcane mosaic virus strain E.