Varietal characteristics and nutrition characteristics of several new varieties of high biomass sugarcanes for sugar and energy | 几个高生物量糖能兼用甘蔗新品种特性及营养吸收特性研究
2011
Tang Shiyun, Guangxi Sugarcane Research Institute, Nanning (China) | Huang Jiayong, Guangxi Sugarcane Research Institute, Nanning (China) | Li Xiang, Guangxi Sugarcane Research Institute, Nanning (China)
[Objective] The aim was to study the varietal characteristics of six new varieties of high biomass sugarcanes for sugar and energy namely GT02-833, GT97-69, GT02-351, GT03-2287, B9 and GT02-770, as well as the nutrition characteristics of them under drip irrigation conditions. [Method] Industrial and agronomic characters, total N, total P, total K and chlorophyll content were determined. [Result] Cane yield, total biomass yield and sugar content of six varieties were more than 180, 200 and 25 t/hm2 respectively, which were higher than that of the control Xintaitang 22. The total nitrogen and total phosphorus contents of six varieties were high and persistent from Jul to Nov, but they decreased sharply in Dec. Total potassium content of all varieties increased from Jul to Dec. Chlorophyll content of all varieties were high from Aug to Oct, but they decreased sharply in Nov. Total nitrogen, total phosphorus and total potassium content of GT02-833,GT97-69 and B9 were higher than that of CK. [Conclusion] GT02-833, GT97-69 and B9 had characteristic of efficient use of nutrients, thus should be extended as elite varieties.
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