基于主成分分析的不同水稻品种品质综合评价

Comprehensive Quality Evaluation of Different Rice Varieties Based on Principal Component Analysis

为研究不同水稻品种综合品质的差异,以来源于黑龙江的11个水稻品种和来源于日本的7个水稻品种为研究对象,以糙米率等作为品质评价指标,在主成分分析基础上,利用隶属函数法对18个水稻品种进行品质评价,同时利用聚类分析法将其归类。结果表明:龙粳39、空育131和牡丹江32三个水稻品种在加工品质方面优于其他品种,爱知旭水稻在外观品质上最好,绥粳18号、松粳9号和早熟青森3个水稻品种在直链淀粉含量和食味评分方面优于其他品种。隶属函数法评价出18个水稻品种品质优劣顺序:龙粳39、牡丹江32、空育131、垦粳8号、早熟青森、龙粳36、爱知旭、绥粳18号、松粳9号、星之梦、垦粳6号、龙庆稻1号、新月光、龙庆稻3号、上育418、龙庆稻2号、龙粳43、富士光。聚类分析结果将18个水稻品种品质聚为3大类,第I类包括龙粳39,其品质最好,第II类包括牡丹江32、空育131、垦粳8号、早熟青森、龙粳36、爱知旭、绥粳18号、松粳9号、星之梦、垦粳6号、龙庆稻1号、新月光、龙庆稻3号、上育418、龙庆稻2号、龙粳43,其品质居中,第Ⅲ类包括富士光,其品质最差。

s:In order to explore the difference in the comprehensive quality of different rice varieties,11 rice varieties from Heilongjiang province,China and 7 rice varieties from Japan were selected for quality evaluation in terms of brown rice rate using subordinate function combined with principle component analysis(PCA).These varieties were classified by cluster analysis.The results showed that among the 18 varieties,Longjing 39,Kongyu 131 and Mudanjiang 32 had the best processing quality,the Japanese rice cultivar Aichiasahi had the best appearance quality,and Suijing 18,Songjing 9 and the Japanese early-maturing cultivar Aomori had the highest amylose content and taste values.According to subordinate function analysis,the quality of the 18 rice varieties could be ranked in decreasing order as follows:Longjing 39,Mudanjiang 32,Kongyu 131,Kenjing 8,early-maturing Aomori,Longjing 36,Aichiasahi,Suijing 18,Songjing 9,Hoshinoyume,Kenjing 6,Longqingdao 1,Xinyueguang,Longqingdao 3,Shangyu 418,Longqingdao 2,Longjing 43,and Fujusu.Cluster analysis showed that these varieties were classified into three groups:Group I,with the best quality,including Longjing 39;Group II including Mudanjiang 32,Kongyu 131,Kenjing 8,early-maturing Aomori,Longjing 36,Aichiasahi,Suijing 18,Songjing 9,Hoshinoyume,Kenjing 6,Longqingdao 1,Xinyueguang,Longqingdao 3,Shangyu 418,Longqingdao 2,and Longjing 43;and Group III,with the worst quality,including Fujusu.