中文摘要：

以初选出的20株原生武隆猪腰枣的成熟果实为试验材料,测定并分析了其16个主要品质性状,以选出优良种质。结果表明:武隆猪腰枣在单果质量以及果实的可溶性固形物、可滴定酸、果胶、氨基酸、钙、铁、锌和硒含量指标上有丰富变异,变异系数在10%以上,具有较大的单株选择潜力;而纵径、横径、水分、可食率、密度、糖含量以及VC含量比较稳定,不宜作进一步选择指标。可滴定酸含量和密度等易测指标与果胶含量、氨基酸含量、钙含量等难测指标间的显著相关有助于枣果品质的相关选择。在20个优良单株中,食用口感和综合性状均优良的是枣优24号、1号、17号、15号和18号。

英文摘要：

Selection was carried out from more than twenty trees of Wulongzhuyao jujube by variation analysis for the main quality characteristics of the jujube.Results showed that there were great differences among the following characteristics:fruit weight,content of soluble solid,titratable acid,pectin,amino acid,calcium,ferrum,zinc and selenic.Their coefficients of variation were above 10％.Furthermore,the variation coefficients of amino acid,ferrum,zinc,and selenium content were above 25％.The characteristics of vertical length,transverse length,content of moisture,edible rate,density,content of sugar and vitamin C have the lower variation coefficients 0.63％-7.36％ which means they were stable and might not be suitable as indicators in further selection.The highly correlation between easy detected characteristics (such as titratable acid,density) and difficult detected ones (such as pectin,amino acid and calcium) might help in the selection.Among twenty Wulongzhuyao jujube trees,No.24,1,17,15 and 18 had the highest scores in taste and comprehensive characteristics.