Evaluation of New Canal Point Sugarcane Clones
1998-99 Harvest Season

Summary

The CP 94 series was tested for the first time in stage IV this year at seven locations. The three clones with the highest TS/H yields in these plant-cane experiments were CP 94-1100, CP 94-1528, and CP 94-2059. CP 94-1100 and CP 94-1528 had moderately high TC/H yields and high KS/T yields. CP 94-1100 had particularly high TS/H and TC/H yields on the sand soil at Lykes. CP 94-2059 had outstanding TC/H yields but low KS/T yields. CP 94-1340 was also identified as a promising clone because of its moderate TS/H and TC/H yields with high KS/T yields and resistance to smut, rust, leaf scald, and mosaic.

This year, the CP 93 series was tested at five locations in the plant-cane crop and at four locations in the first-ratoon crop. CP 93-1596, CP 93-1634, CP 93-1382, and CP 93-1309 had TS/H yields similar to the TS/H yield of CP 70-1133 when this year’s plant-cane and first-ratoon results were combined with last year’s plant-cane results at five locations. The main attribute of CP 93-1596 was its high yield of TC/H, and CP 93-1309's main attribute was its high yield of KS/T. CP 93-1634 and CP 93-1382 had TC/H and KS/T yields similar to those of CP 70-1133.

The CP 92 series was tested at three locations in the first-ratoon crop and at seven locations in the second-ratoon crop this year. Last year, this group of clones was tested in the plant-cane crop at three locations and in the first-ratoon crop at seven locations. Two years ago, these clones were tested in the plant-cane crop at seven locations. CP 92-1666 was the only clone without a serious disease problem that yielded more TS/H than CP 70-1133 when results from all of these tests were combined. CP 92-1666 had a higher TC/H yield than CP 70-1133, and the two clones had similar KS/T yields. CP 92-1213 and CP 92-1641 had TS/H yields similar to the TS/H yield of CP 70-1133. CP 92-1213 and CP 70-1133 had nearly identical KS/T and TC/H yields. CP 92-1641 had lower TC/H and higher KS/T yields than CP 70-1133.

Four years of testing of the CP 91 series was completed this year with second-ratoon experiments at two locations. Combining all plant-cane, first-ratoon, and second-ratoon tests from these four years identified CP 91-1914 and CP 91-1924 as two new clones that had TS/H yields similar to the TS/H yield of CP 70-1133. However, both new clones had disease problems that prevent their commercial use in Florida. CP 91-1238 and CP 91-1883 had high TS/H yields on the Torry muck soil at Eastgate each of the three years they were harvested there.

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United States Department of Agriculture
Agricultural Research Service

The material on this page is in the public domain.

Original posting: June 20, 2000.