蒌蒿种质资源根状茎主要营养成分测定与评价

Determination and Evaluation of Main Nutrient Components in Rhizome of Seleng Wormwood Germplasm Resources

对保存在国家种质武汉水生蔬菜资源圃的20份蒌蒿种质资源根状茎的主要营养成分进行了测定与评价。结果表明,蒌蒿种质资源根状茎的干物质、蛋白质、可溶性糖、粗纤维含量分别为17.90%、3.28%、10.14%、1.09%。从茎色来看,蒌蒿根状茎干物质、蛋白质、可溶性糖含量几乎都表现为红蒌蒿>青蒌蒿>白蒌蒿,仅青蒌蒿和白蒌蒿根状茎蛋白质含量相等,粗纤维含量表现为白蒌蒿>红蒌蒿>青蒌蒿。从叶型来看,蒌蒿根状茎干物质、蛋白质、可溶性糖含量都表现为碎叶蒿>柳叶蒿,而粗纤维含量表现为柳叶蒿>碎叶蒿。同一营养成分在类型间的差异都不显著。红蒌蒿和碎叶蒿根状茎的营养品质性状相对较好。李市蒌蒿的干物质、可溶性糖和粗纤维含量均为最高;沙洋蒌蒿蛋白质含量最高。蒌蒿根状茎的干物质与蛋白质、可溶性糖含量之间偏相关系数达显著正相关;蛋白质与可溶性糖含量之间偏相关系数达显著负相关。

The main nutrient components of rhizome were determined and evaluated in 20 seleng wormwood germplasm resources preserved in National Germplasm Wuhan Aquatic Vegetable Resource Garden.The dry matter,protein,soluble sugar and crude fiber contents were 17.90%,3.28%,10.14%and 1.09%,respectively.Based on the stem color,the contents of dry matter,protein,and soluble sugar were classified(red>green>white).The protein content of green if compared to white seleng wormwood was equal,and the crude fiber content was further classified(white>red>green).According to the blade shape,the contents of dry matter,protein and soluble sugar of wormwood rhizome were higher in broken leaf-seleng wormwood in comparison to willow-leaf-seleng wormwood,while the crude fiber content was observed opposite in both types.However,for each of nutrient components,no significant difference was observed between each of two types.The nutritional quality of red seleng wormwood and broken leaf-seleng wormwood was relatively better.The highest value on the contents of dry matter,soluble sugar and crude fibre was detected in Lishilouhao,and the highest protein content was found in Shayanglouhao.The partial correlation between dry matter content and protein content and that between dry matter content and soluble sugar content were significantly positive.The partial correlation between protein and soluble sugar was significantly negative.