Summary on Regional Trial of Guangxi Sugarcane Varieties in 2013-2014

The study aims to screen out sugarcane variety with good comprehensive agronomic traits for varietyupgrading and improving the structure of sugarcane varieties grown in Guangxi Province. Analysis andevaluation were carried out on the cane yield, the stability and adaptability of sucrose content and agronomictraits of new sugarcane varieties depending on the investigation data of the regional trial of Guangxi sugarcanevarieties in 2013-2014, in order to screen out the best strains for new variety certification. The two-year newplanting and one-year ratooning cane test results indicated that, variety‘GT06-244’,‘GT06-1721’,‘GT07-994’,‘LC05- 136’and‘GT06- 3283’had good comprehensive characters. Their average cane yieldincreased by 20.20%, 10.59%, 8.94%, 3.15% and 1.60%, respectively, compared with that of‘ROC22’(thecontrol), the average sucrose content increased by 0.16, 0.17, 0.46, 0.93 and 0.36 percentage points,respectively. Among that,‘GT06- 244’showed had high yield, middle sucrose content, good stability andbeing very easily to disleave, and‘GT06-1721’had high yield, middle sucrose content, high resistance todisease and lodging.‘GT07-994’and‘LC05-136’had early maturing, high yield and sucrose content withgood ratooning ability traits.‘GT06-3283’had middle yield and high sucrose content. The performance of allthese strains accorded with the new sugarcane approval standard of Guangxi, and could be adopted fordemonstration planting and popularization and application in suitable planting area in the future.sugarcane variety; regional trial; Guangxi