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Effect and Analysis of Mechanized Production on Ratooning Ability of guitang 47

Agricultural Biotechnology 2020年第1期9卷 50-53页

作者： Lunwang WANG Yuchi DENG Fang TAN Shiyun TANG Hairong HUANG Yan JING Rongzhong YANG Sugarcane Research Institute Guangxi Academy of Agricultural Sciences/Key Laboratory of Sugarcane Biotechnology and Genetic Improvement(Guangxi)Ministry of Agriculture/Guangxi Key Laboratory of Sugarcane Genetic Improvement

[Objectives] This study was conducted to explore the effect of machine harvesting on ratooning ability of guitang 47, and to provide basis for mechanized production of guitang 47. [Methods] On the basis of mechanized planting and management of newly planted sugarcane guitang 47, a comparative test of machine harvesting and manual harvesting was conducted, during which the plant generation rate, sugarcane yield, sucrose content and related agronomic traits of ratoon cane were continuously investigated in two years after machine harvesting of the newly planted sugarcane. [Results] There were no significant differences in the plant generation rate, plant height, stalk diameter, millable cane, sugarcane yield and sucrose content from manual harvesting of guitang 47 in the first and second years after machine harvesting. In the second year after machine harvesting, the yields of ratoon cane and the sugar content reached 101.70 and 15.32 t/hm^2, respectively, which were equivalent to those of manual harvesting. [Conclusions] guitang 47 has strong ratooning ability and lodging resistance and strong resistance to rolling and crushing, and is adaptive to full mechanized production. It should be promoted and accelerated in sugarcane areas lacking labor to reduce costs and increase benefits.

关键词： Mechanized production guitang 47 Ratooning ability Sugarcane yield Sugar content

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