Analysis and Evaluation of Nutrient Composition of Special Rice Germplasm Resources Based on the Principal Component Analysis
The nutrient composition of 37 special rice germplasms were determined,and the differences in nutrient content of different types of special rice were compared and analyzed,and the principal component analysis and comprehensive evaluation were carried out in order to provide a basis for the creation of new special rice materials in Liaoning rice area.The results showed the content of eight essential amino acids in most of the special rice were significantly higher than that of the control,and the contents of mineral elements in black-flavor glutinous rice and black-flavor rice were significantly or extremely significantly higher than those in the control.The contents of active substances in different types of special rice were generally higher than those in the control white rice,and the contents of active substances in black-flavor glutinous rice and black-flavor rice were significantly or extremely significantly higher than those in the control.It was also found that two or more polymerization types of special rice had a certain increase effect on amino acid content,mineral element content,vitamin Bi,vitamin B2,anthocyanin and flavonoid contents.The comprehensive evaluation function of nutritional quality traits of special rice was established based on the principal component coefficients of 17 indexes,and the comprehensive evaluation was carried out.There were 23 special rice materials with scores above zero,accounting for 62.2％of the total test materials.Among them,three special rice materials(Heixiangnuo-2,Heixiangdao 1 and Heixiangdao 2)had scores greater than 1.These can be used as a source of special trait genetic sources for the material basis for the research and innovation of special rice types of rice species of the Liaoning coastal rice area.
Principal component analysisSpecial riceGermplasm resourcesNutrient compositionAnalysis and evaluation
万方数据
维普
