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Title: Notice of release of sugarcane variety HoCP 09-804

item Todd, James

Submitted to: Sugar Bulletin
Publication Type: Trade Journal
Publication Acceptance Date: 6/15/2016
Publication Date: 7/1/2016
Citation: Todd, J.R. 2016. Notice of release of sugarcane variety HoCP 09-804. Sugar Bulletin. 94(10):17-19.

Interpretive Summary:

Technical Abstract: The Agricultural Research Service of the United States Department of Agriculture, the Louisiana Agricultural Experiment Station of the LSU Agricultural Center, and the American Sugar Cane League of the U.S.A., Inc., working cooperatively to develop improved sugarcane varieties, have jointly developed and hereby announce the release of a new sugarcane variety, HoCP 09-804, for commercial planting in the summer of 2016. HoCP 09-804 is a product of the cross between HoCP 02-625 and HoCP 01-523 made at Canal Point (CP) Florida in 2004 and selected at Houma (Ho), Louisiana in 2006. The variety HoCP 09-804 compares well in yield with the variety L 01-299, the highest yielding commercial variety currently being grown in Louisiana. In comparisons with L 01-299 in 35 plant-cane outfield evaluations, HoCP 09-804 had higher sugar/acre yield (9059 vs. 8513 lbs./acre), was equal in cane/acre yield (32.1 vs. 31.5 tons/acre), and had higher in sugar/ton of cane (283 vs 271 lbs./ton). It had a greater number of stalks/acre (34,990 vs. 28,671), but its individual stalk weight was less (1.85 vs. 2.24 lbs.). In 24 first-stubble outfield evaluations, HoCP 09-804 had lower yields than L 01-299 for sugar/acre (8274 vs. 9029 lbs./acre), but did not differ statistically in cane/acre (28.2 vs. 31.3 tons/acre) or sugar/ton of cane (295 vs.289 lbs./ton). The stalk population of HoCP 09-804 was again greater than L 01-299 (35,203 vs. 32,759 stalks per acre), but its stalk weight was less (1.61 vs 1.94 lbs.). In 11 second-stubble outfield evaluations, the yield of HoCP 09-804 did not differ statistically from that of L 01-299 in sugar/acre (7469 vs. 8273 lbs./acre) or sugar/ton of cane (293 vs 288 lbs./ton), but was lower in tons cane/acre (25.7 vs 28.8 tons/acre).) There were no significant differences in the population of stalks/acre (36,336 vs 34,526 stalks/acre) or stalk weight (1.70 vs 1.42 lbs.) between HoCP 09-804 and L 01-299, respectively. Fiber levels averaged 13.3% fiber for HoCP 09-804. This level was 96% and 107% of the levels for HoCP 04-838 and L 01-299, respectively. HoCP 09-804 is mildly susceptible to smut caused by Sporisorium scitamineum, leaf scald caused by Xanthomonas albilineans and ratoon stunt caused by Leifsonia xyli subsp. xyli. HoCP 09-804 is susceptible to brown rust caused by Puccinia melanocephala and mosaic caused by Sorghum mosaic virus (SrMV). It is moderately susceptible to sugarcane borer, Diatraea saccharalis. Although not as early maturing as HoCP 00-950, HoCP 09-804 matures earlier than L 01-299. It is comparable to L 01-283 in its maturity profile.