浙江农业学报 ›› 2025, Vol. 37 ›› Issue (9): 1840-1848.DOI: 10.3969/j.issn.1004-1524.20250047

• 作物科学 • 上一篇    下一篇

基于多种分析方法的糯玉米品质综合评价

许卫猛(), 徐妍, 陈国立()   

  1. 周口市农业科学院, 河南 周口 466001
  • 收稿日期:2025-01-14 出版日期:2025-09-25 发布日期:2025-10-15
  • 作者简介:陈国立,E-mail:317551013@qq.com
    许卫猛(1989—),男,河南太康人,硕士,助理研究员,主要从事玉米遗传育种与栽培研究。E-mail:956671831@qq.com
  • 通讯作者: 陈国立
  • 基金资助:
    河南省科技研发计划联合基金(225101610071);河南省现代农业产业技术体系(HARS-22-02-Z5)

Comprehensive evaluation of waxy corn quality based on various analytical methods

XU Weimeng(), XU Yan, CHEN Guoli()   

  1. Zhoukou Academy of Agricultural Sciences, Zhoukou 466001, Henan, China
  • Received:2025-01-14 Online:2025-09-25 Published:2025-10-15
  • Contact: CHEN Guoli

摘要:

为对糯玉米的品种间差异、品质间关系,以及综合品质进行准确全面的评价,选取粗淀粉含量、支链淀粉含量、皮渣率、外观、气味、色泽、糯性、风味、柔嫩性、皮薄度作为评价指标,采用变异性分析、相关分析、聚类分析、主成分分析和雷达图法,对10个糯玉米品种的品质进行综合评价。结果表明,供试品种在选取的指标上的变异系数在1.77%~9.16%,其中,皮渣率的变异系数最大,粗淀粉含量的变异系数最小。相关分析表明,外观、色泽、糯性、支链淀粉含量与食味分值呈极显著(p<0.01)正相关,是影响糯玉米品质的主要因素。聚类分析将供试品种分为3类。主成分分析的结果显示,浚糯313、豫糯502、豫白糯501、安工糯818、浚糯504的综合得分较高。基于雷达图分析的结果,在参试品种中,得分最高的是豫白糯501,其后依次为周糯9号、浚糯504、浚糯313和安工糯818。综合以上分析方法,筛选出浚糯504、浚糯313、豫白糯501等综合品质优良的品种。该方法可有效克服传统感官评价的主观性及单个分析方法的局限性,可为糯玉米品质的综合评价提供理论参考。

关键词: 糯玉米品种, 品质评价, 主成分分析, 聚类分析

Abstract:

To accurately and comprehensively evaluate the quality of waxy corn varieties, and elucidate the interrelationships among quality traits, and reveal the differences among varieties, evaluation indices of crude starch content, amylopectin content, residue ratio, appearance, odor, color, waxiness, flavor, tenderness and thinness were adopted in this study. By utilizing variability analysis, correlation analysis, cluster analysis, principal component analysis and radar chart, a comprehensive assessment was conducted on 10 waxy corn varieties. It was shown that the selected indices exhibited coefficients of variation ranging from 1.77% to 9.16% among these varieties. Within these indices, residue ratio displayed the maximal variability, yet crude starch content exhibited the minimal variability. Correlation analysis revealed that, appearance, color, waxiness and amylopectin content were significantly (p<0.01) positively correlated with the taste score, therefore, these indices were identified as main determinants for waxy corn quality. The 10 varieties were divided into 3 clusters by cluster analysis. In the principle component analysis, Xunnuo 313, Yunuo 502, Yubainuo 501,Angongnuo 818 and Xunnuo 504 got higher scores, indicating a superior quality. As revealed by the radar chart method, the score of Yubainuo 501, Zhounuo 9, Xunnuo 504, Xunnuo 313 and Angongnuo 818 was higher. Based on these results, superior varieties of Xunnuo 504, Xunnuo 313 and Yubainuo 501 were identified. This integrative analytical framework could effectively mitigate the subjectivity inherent in conventional sensory evaluation and overcome the limitations of singular analytical approach, thereby provding more sound theoretical basis for quality assessment of waxy corn.

Key words: waxy corn variety, quality evaluation, principle component analysis, cluster analysis

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