Shapes and nutrients of Dendrocalamopsis oldhami bamboo shoots in 12 production areas

Key words: 
• botany /
• Dendrocalamopsis oldhami bamboo shoot /
• shape trait /
• nutritional components /
• production area diversity

Abstract: Shape indexes（diameter，height，gross weight，and net weight） and nutrient components （hydrolyzed amino acids，reducing sugars，total sugars，crude protein，crude fiber，ash，and water） of Dendrocalamopsis oldhami bamboo shoots in 12 main production areas（Fuan，Youxi，Yongtai，Yongchun，Zhangping，Tongan，Zhangzhou，and Longyan of Fujian Province as well as Fengling，Cangnan，Daidi，and Longhu of Zhejiang Province） were studied with a correlation analysis being used on shoot quality traits. Results showed significant differences（P＜0.01） for shape indexes in different production areas，and the coefficient of variation（C.V.） was 13.3% － 36.1%. Also，the edible rates were highest in the Zhangzhou，Fuan，and Fengling areas reaching 77% － 82%. Total hydrolyzed amino acids were higher in the Longyan，Cangnan，Longhu，Tongan，Zhangzhou，and Zhangping areas，and nutrient accumulation in the bamboo shoots showed marked differences（P＜0.01），especially for crude fiber，reducing sugars，and total sugars. In addition，the correlation analysis showed high sugar content with low fiber content，and total sugars was negatively correlated to total ash （r = － 0.594 3，P＜0.051）. Higher available nutritional components（averaging of 85.05%） were found in Fuan，Yongtai，Cangnan，and Youxi areas. Thus，these three areas，having a long cultivation history and utilizing scientific bamboo management techniques，could provide a reference for better cultivation and management of D. oldhami. ［Ch，1 fig. 4 tab. 11 ref.］