Registration of ‘L 14-267’ sugarcane

Authors: PONTIF, MICHAEL - Louisiana State University Agcenter; KIMBENG, COLLINS - Louisiana State University Agcenter; GRAVOIS, KENNETH - Louisiana State University Agcenter; TAYLOR, ZACHARY - Louisiana State University Agcenter; SEXTON, DAVID - Louisiana State University Agcenter; BLANCHARD, BRAYDEN - Louisiana State University Agcenter; DAIGLE, MAVIS - Louisiana State University Agcenter; FONTENOT, DEXTER - Kleentek Inc; HAWKINS, GERTRUDE - Louisiana State University Agcenter; HOY, JEFFREY - Louisiana State University Agcenter; BAISAKH, NIRANJAN - Louisiana State University Agcenter; WILSON, BLAKE - Louisiana State University Agcenter; ORGERON, ALBERT - Louisiana State University Agcenter; Todd, James; Hale, Anna; WAGUESPACK, HERMAN - American Sugar Cane League

Submitted to: Journal of Plant Registrations
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 9/14/2022
Publication Date: 4/18/2023
Citation: Pontif, M., Kimbeng, C., Gravois, K., Taylor, Z., Sexton, D., Blanchard, B., Daigle, M., Fontenot, D., Hawkins, G., Hoy, J., Baisakh, N., Wilson, B., Orgeron, A., Todd, J.R., Hale, A.L., Waguespack, H. 2023. Registration of ‘L 14-267’ sugarcane. Journal of Plant Registrations. pp. 1-16. https://doi.org./10.1002/plr2.20267.
DOI: https://doi.org/10.1002/plr2.20267

Interpretive Summary: Sugarcane is an important crop for Louisiana and new varieties are necessary to keep sugarcane productive and resistant to disease. To fill this need, elite clones from the variety development program at the LSU Agcenter, in St. Gabriel, Louisiana are evaluated on station and throughout Louisiana cooperatively with the USDA-ARS and the American Sugarcane League to identify new adapted cultivars to release for the region. One of these, L 14-267, had superior sugar yield in plant cane crop and sucrose content in plant cane and first ratoon. L 14-267 is resistant to several diseases including sorghum mosaic, yellow leaf, smut, and ratoon stunt and moderately resistant to brown rust and leaf scald. It is moderately susceptible to the sugarcane borer and the Mexican rice borer. This release of this cultivar gives the Louisiana industry a new high yielding cultivar.

Technical Abstract: ‘L 14-267’ (Reg. no. CV-, PI) sugarcane (Saccharum spp. hybrid) was selected from a cross between the female parent HoCP 05-918 and the male parent ‘L01-283’. In the final testing stage, data were collected from 62 replicated, combine-harvested trials at 12 representative sandy silt (light-textured) and clayey (heavy-textured) soil locations. Cane yield of L 14-267 was comparable to that of ‘L 01-299’, the most widely grown cultivar in the Louisiana sugar industry, in the plant and first ratoon crops but significantly lower in the second ratoon crop. For stalk number and stalk weight, L 01-299 produced significantly more stalks, whereas L 14-267 produced significantly heavier stalks in all crops. Sucrose content was significantly higher in L 14-267 than in L 01-299, in the plant and first ratoon crops and comparable to that of L 01-299 in the second ratoon crop. Sugar yield was significantly higher in L 14-267 than in L 01-299 in the plant crop, comparable in the first ratoon crop, but significantly lower in the second ratoon crop. The performance of L 14-267 did not differ significantly between the two soil types for any of the traits. L 14-267 is a mid to late season maturing cultivar that appears to respond well to plant growth regulators, but poorly to sub-freezing temperatures. The new cultivar has broad-spectrum disease resistance being resistant to mosaic, yellow leaf, smut, and ratoon stunt and moderately resistant to brown rust and leaf scald. L 14-267 is moderately susceptible to the sugarcane borer and the Mexican rice borer. ‘L 14-267’ was released for commercial production in the Louisiana Sugar Industry on 8 Apr 2021.