农业科学研究2025，Vol.46Issue(4)：10-19,10.DOI:10.13907/j.cnki.nykxyj.2025.04.002
8个水稻品种在宁夏中度盐碱地的多指标适应性综合评价
Comprehensive Evaluation of Multi-Index Adaptability of Eight Rice Varieties in Moderate Saline-Alkali Land in Ningxia
摘要
Abstract
This study aims to identify the most suitable rice varieties for cultivation in mild saline-alkali land in Ningxia.Field exper-iments and multivariate statistical analysis were employed to comprehensively evaluate the adaptability of eight rice varieties.By measuring 19 indicators,including photosynthetic performance,quality,and yield,for the eight rice varieties,a cluster analysis based on principal component analysis and the membership function method was conducted.Additionally,grey correlation analysis was performed on the 19 indicators,and the two evaluation methods were compared.The results showed that:① Pn was signifi-cantly positively correlated with SPAD values,while Gs exhibited a significant positively correlation with Ci and Tr.Furthermore,a highly significant positive correlation was observed between chalkiness and chalkiness rate,as well as between taste value and SPAD value.Yield was positively correlated with ear weight,total number of grains per ear,and leaf area index,and it also showed a significant correlation with ear length and plant height.② Through principal component analysis,the 19 indicators under saline-alkali stress were distilled into four new comprehensive indicators,with a cumulative contribution rate of 89.702%.The adaptability scores(D value)of the eight rice varieties,calculated using the membership function method,showed that Ningjing 51 and Ningjing 56 had D values that increased by 8.17%and 3.17%,respectively,compared to the control.Cluster analysis revealed that Class Ⅱ rice(Ningjing 51>Ningjing 56>Qiuyou 88)exhibited the best overall performance.③ The rankings obtained from grey correlation analysis for equal-weight and weighted correlation were identical,with Ningjing 56,Ningjing 51,and Qiuyou 88 showing decreasing correlation strengths.Given these findings,it is concluded that Ningjing 56 and Ningjing 51 are the most suit-able rice varieties for cultivation in saline-alkali land in Ningxia,providing a theoretical basis and technical support for biological improvement based on planting suitability.关键词
盐碱地/水稻/主成分分析/隶属函数/聚类分析/灰色关联度分析/适应性综合评价Key words
saline-alkali land/rice/principal component analysis/membership function/cluster analysis/grey correlation analy-sis/adaptive comprehensive evaluation分类
农业科技引用本文复制引用
秦虎廷,田军仓,冯克鹏,谭军利..8个水稻品种在宁夏中度盐碱地的多指标适应性综合评价[J].农业科学研究,2025,46(4):10-19,10.基金项目
国家重点研发计划项目课题五专题四(2021YFD1900605-04) （2021YFD1900605-04）
宁夏高等学校一流学科建设项目(NXYLXK2021A03) （NXYLXK2021A03）
