兔眼蓝浆果品种果实养分测定

对南京地区引自美国的１２个兔眼蓝浆果品种果实主要营养成分包括可溶性固形物、糖、酸、水溶性维生素、氨基酸、矿质元素进行了测定，并与原产地进行了比较。大多数品种果实糖分含量高而酸度低，糖酸比高，风味甜而微酸。Ｂ族维生素含量明显高于苹果、柑橘和黑莓。氨基酸含量品种间差异大，Ｄｅｌｉｔｅ、Ｗｏｏｄａｒｄ、Ｃｅｎｔｕｒｉｏｎ和Ｇａｒｄｅｎｂｌｕｅ含量最高。Ｇａｒｄｅｎｂｌｕｅ大部分矿质元素，特别是Ｃａ、Ｆｅ、Ｚｎ、Ｋ的含量较高，Ｐｒｅｍｉｅｒ和Ｗｏｏｄａｒｄ的Ｓｅ含量高，Ｃｌｉｍａｘ的Ｚｎ含量高。考虑到品种的适应性，特别是丰产性表现，认为Ｇａｒｄｅｎｂｌｕｅ和Ｔｉｆｂｌｕｅ二品种在南京地区发展前途较大。

Analysis of nutrient constituents of rabbiteye blueberry cultivars

Main nutrient constituents, i.e. soluble solids, sugar, acid, water soluble vitamins, amino acids and minerals in the fruits of 12 cultivars of rabbiteye blueberry in Nanjing introduced from the United States were analysed. Most of the cultivars have higher sugar content and lower acid content so that specialized with high suger acid ratio. The contents of vitamin B series in rabbiteye blueberry are obviously higher than those of apple, mandarine and blackberry. The amino acid contents of different cultivars are distinct from each other and that of Delite, Woodard, Centurion and Gardenblue are among the highest. Most of the mineral elements, especially Ca, Fe, Zn and K are higher in Gardenblue fruits. The highest contents of Se were found in Premier and Woodard. Climax is at the peak with Zn content. Considering about the adaptability of cultivars, especially for fertility, Gardenblue and Tifblue were recommended as most prospective ones.