浙江农业学报 ›› 2024, Vol. 36 ›› Issue (2): 334-343.DOI: 10.3969/j.issn.1004-1524.20230244

• 园艺科学 • 上一篇    下一篇

瓠瓜果实品质性状因子分析和综合评价

汪颖(), 王尖, 冯子珊, 汪宝根, 吴新义, 鲁忠富, 孙玉燕, 董文其, 李国景, 吴晓花*()   

  1. 浙江省农业科学院 蔬菜研究所,浙江 杭州 310021
  • 收稿日期:2023-02-28 出版日期:2024-02-25 发布日期:2024-03-05
  • 作者简介:汪颖(1991—),女,安徽亳州人,博士,副研究员,主要研究方向为瓠瓜分子育种。E-mail:wangying@zaas.ac.cn
  • 通讯作者: *吴晓花,E-mail:wuxiaohua2001@126.com
  • 基金资助:
    浙江省“尖兵”“领雁”研发攻关计划(2023C02027);浙江省农业(蔬菜)新品种选育重大科技专项(2021C02065);浙江省重点研发计划(2021C02052)

Factor analysis and comprehensive evaluation of the fruit quality of bottle gourd (Lagenaria siceraria)

WANG Ying(), WANG Jian, FENG Zishan, WANG Baogen, WU Xinyi, LU Zhongfu, SUN Yuyan, DONG Wenqi, LI Guojing, WU Xiaohua*()   

  1. Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
  • Received:2023-02-28 Online:2024-02-25 Published:2024-03-05

摘要:

以206份瓠瓜种质资源为试材,测定了其28项品质性状相关指标,并进行了相关性分析、因子分析和聚类分析,建立了基于因子分析的瓠瓜果实品质综合评估模型,并根据综合得分排序了优良度,结合二维排序图,筛选获得高品质种质材料。结果表明:206份瓠瓜种质材料28项果实品质性状指标变异程度不同,变异系数在2.71%~63.60%。变异系数最大的是游离谷氨酸(Glu)含量,变异系数最小的为含水量,不同品质指标间均存在不同程度的相关性。因子分析筛选出9个公因子,累计方差贡献率为86.78%,其中第1公因子的贡献率为38.46%,主要集中于游离氨基酸类。根据相关性分析和聚类分析结果,以指标避免重复和简单易用为原则,将指标简化为肉厚、可溶性固形物含量、硬度、Glu含量、蛋白质含量这5项代表性指标,并综合评估了206份瓠瓜种质材料的果实品质。本研究结果为后续瓠瓜高品质优良品种的选育提供材料和依据。

关键词: 瓠瓜, 果实品质, 因子分析, 代表性指标, 综合评价

Abstract:

The objective of this study was to establish a comprehensive evaluation system for assessing fruit quality in bottle gourd for the purposes of quality evaluation, selection, and breeding. Data on 28 fruit quality related traits were collected from 206 bottle gourd germplasm collections. Correlation analysis, factor analysis, cluster analysis, and two-dimensional ordination mapping were conducted to develop a comprehensive evaluation formula for fruit quality in bottle gourd. The results indicated that the variations in the 28 fruit quality traits were different, ranging from 2.71% to 63.60%. The greatest difference was found in the free glutamate (Glu) content, while the least difference was observed in water content. The correlations among all bottle gourd quality indexes differed depending on the collection. Nine common factors were extracted from bottle gourd quality indexes with an 86.78% cumulative variance contribution rate through factor analysis. The first common factor explained the indices mainly concentrated in free amino acids, with a 38.46% cumulative variance contribution rate. Based on the results of comprehensive analysis and cluster analysis, flesh thickness, soluble solids content, hardness, Glu content, and protein content were selected as typical indices for evaluating the fruit quality of 206 bottle gourd germplasm collections. These findings provide valuable resources and a foundation for breeding high-quality bottle gourd.

Key words: bottle gourd, fruit quality, factor analysis, representative indexes, comprehensive evaluation

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