Location: Sugarcane ResearchTitle: Registration of ‘Ho 05-961’ sugarcane
|TEW, THOMAS - Retired ARS Employee|
|WHITE, WILLIAM - Retired ARS Employee|
|DALLEY, CALEB - Former ARS Employee|
|WILSON, BLAKE - LSU Agcenter|
|GRAVOIS, KENNETH - LSU Agcenter|
|JACKSON, WINDELL - Retired Non ARS Employee|
Submitted to: Journal of Plant Registrations
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 9/1/2020
Publication Date: N/A
Interpretive Summary: New sugarcane varieties are necessary for continued high yields in Louisiana because of adverse conditions such as early freezes, and disease and insect pests. The variety development program at the USDA-ARS Sugarcane Research Station in Houma, Louisiana, makes crosses with favorable clones and evaluates their progeny in 20 locations in a process that takes over 11 years from cross to release. One of these, the released variety Ho 05-961, is early maturing and resists disease. Early maturity is important for the early harvest necessary under Louisiana growing conditions where early freeze events occur regularly. This variety Ho 05-961 has early maturity, disease resistance and yield to have the potential to increase agricultural production and profits in Louisiana.
Technical Abstract: ‘Ho 05-961’ (Reg. No. CV-xxx, PI xxxxxx) sugarcane (interspecific hybrids of Saccharum spp.) was selected and evaluated by scientists at the USDA-ARS, working cooperatively with the Louisiana State University Agricultural Center, and the American Sugar Cane League, Inc. It was released to growers in Louisiana in 2012. The cultivar was tested across the crop cycle (plant cane and first and second ratoon) at 11 farm locations, and compared to HoCP 96-540, the most widely grown cultivar in Louisiana at that time. The sucrose yield (Mg ha-1) of Ho 05-961 was equivalent to HoCP 96-540, and sucrose content was significantly higher for each crop, and Ho 05-961 has moderately early maturity. The cultivar is moderately resistant to smut (caused by Sporisorium scitamineum (Syd.) M. Piepenbr), brown rust (caused by Puccinia melanocephala H. and P. Sydow) and leaf scald (caused by Xanthomonas albilineans (Ashby) Dowson). Ho 05-961 is moderately susceptible to sugarcane mosaic caused by Sorghum mosaic virus and orange rust caused by Pucciinia kuehnii (W. Krüger) E.J. Butler. It is moderately resistant to the sugarcane borer, Diatraea saccharalis F. and moderately responsive to glyphosate ripener. Ho 05-961’s high sucrose content make it a useful addition to current commercial sugarcane varieties available for Louisiana.