Tanzhou Black Sugarcane

Tanzhou Black Sugarcane

　　Tanzhou Black Sugarcane

　　Black-skinned sugarcane is originally from tropical and subtropical regions. It is a high-light-efficiency plant with a high light saturation point, low carbon dioxide compensation point, low photorespiration rate, and strong photosynthetic intensity. Therefore, black-skinned sugarcane has high biomass yield and substantial economic returns. Newly planted black-skinned sugarcane is propagated by planting sugarcane seedlings, which quickly take root and produce many young shoots, forming a clump. During harvest, only the stems of the black-skinned sugarcane are cut, while the roots remain in the soil as ratoons. The following year, these ratoons will branch out and grow new stems again. Thus, black-skinned sugarcane is a perennial plant, capable of being harvested up to 7–8 times, though in China it is usually harvested around 3 times before the ratoons are dug up after three years and replanted.