基于灰色关联度及因子分析法的新疆葡萄矿质营养评价

Grey Correlation Degree and Factor Analysis of Grape Mineral Nutrient Elements in Xinjiang

为客观、有效地评价新疆不同主产区葡萄矿质元素营养品质,依据灰色关联度、因子分析、聚类分析法对不同产区葡萄的Na、Mg、K、Ca、Mn、Fe、Cu、Zn、Se等9种矿物元素营养状况进行了综合评价,结果为不同产地葡萄矿物营养价值由高到低是和硕县>玛纳斯县>焉耆县>昌吉市>吐鲁番市>哈密市>鄯善县,和硕县的为第一类,玛纳斯县、焉耆县的为第二类,昌吉市、吐鲁番市、哈密市、鄯善县的为第三类;本研究采用灰色关联度分析、因子分析和聚类分析等三种方法的研究评价结果完全一致,为提高评价结果的准确性,可采取三种方法相结合的方式。

Based on grey correlation degree,factor analysis and cluster analysis,nine mineral nutrition elements in grapes from different regions of Xinjiang were evaluated.The evaluation system was established with relative correlation degree and sample factor score as evaluation indexes.The relative correlation degree and sample factor scores of grape mineral nutrition elements in different regions were in the same order as Hesuo County>Manas County>Yanqi County>Changji City>Turpan city>Hami city>Shanshan County.The analysis results were consistent with the grey correlation degree and factor analysis results by systematic cluster analysis.The results showed that these three analysis methods had reliable statistical basis and accurate results,and could be applied for the evaluation of mineral nutrition elements in grape fruit comprehensively.