摘要
以宁夏银川市芦花台园林场、宁夏海原县四营、青海诺木洪农场的4种品种枸杞果实宁杞1号(N1)、宁杞7号(N7)、宁农杞15号(7-8)、科杞6082(14-02)为试验材料,分析比较其外在品质(平均单果重、横纵径、果形指数)和内在品质(总糖、多糖、甜菜碱、类胡萝卜素)的差异,利用主成分分析建立综合评价模型进行品质综合评价.结果表明,不同产区不同品种的枸杞果实品质存在明显差异.将7个品质性状综合成3个主成分因子,可反映枸杞品质84.807%的原始数据信息量.主成分综合评价结果表明,青海产区"14-02"、"7-8"和宁夏海原产区"14-02"果实品质较好.利用主成分分析法能够综合评价各品种枸杞的品质,为后续不同产区及品种枸杞果实的品质评价研究提供数据参考,也可为枸杞的产区选择提供理论指导.
Abstract
Taking four varieties of wolfberries Ningqi No.1(N1),Ningqi No.7(N7),Ningnongqi No.15(7-8),Keqi6082(14-02)from Luhuatai Garden Farm in Yinchuan City of Ningxia,Siying in Haiyuan County of Ningxia and Nuomuhong Farm in Qinghai as test materials,the differences in external quality(average single fruit weight,transverse and longitudinal diameters,fruit shape in-dex)and intrinsic quality(total sugar,polysaccharide,betaine,carotenoids)were analyzed and compared,and a comprehensive evaluation model was established by principal component analysis for comprehensive quality evaluation.The results showed that there were significant differences in the quality of wolfberries in different strains in different production areas.The synthesis of seven quality traits into three principal component factors could reflect the original data information of 84.807%of the quality of wolfberries.The re-sults of the comprehensive evaluation of principal components showed that the fruit quality of 14-02 and 7-8 in Qinghai as well as 14-02 in Haiyuan County,Ningxia was good.The principal component analysis method could comprehensively evaluate the quality of each strain of wolfberry,provide data reference for the subsequent quality evaluation research of wolfberry fruit in different production areas and strains,and also provide theoretical guidance for the selection of wolfberry production area.
维普
万方数据