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园艺学报 ›› 2023, Vol. 50 ›› Issue (11): 2305-2322.doi: 10.16420/j.issn.0513-353x.2022-0492

• 遗传育种·种质资源·分子生物学 •    下一篇

梨296份种质资源果点性状综合评价

端瑞薇, 张向展, 李博, 王梦茹, 解亚荣, 李配, 王磊, 杨健, 薛华柏*()   

  1. 中国农业科学院郑州果树研究所,郑州 450009
  • 收稿日期:2023-04-27 修回日期:2023-08-24 出版日期:2023-11-25 发布日期:2023-11-28
  • 通讯作者:
    *(E-mail:
  • 基金资助:
    国家自然科学基金面上项目(31971691); 国家重点研发计划项目(2019YFD1001404); 国家现代农业产业技术体系建设专项; 中国农业科学院创新工程项目(CAAS-ASTIP)

Comprehensive Evaluation of Fruit Spots in 296 Pear Germplasm Resources

DUAN Ruiwei, ZHANG Xiangzhan, LI Bo, WANG Mengru, XIE Yarong, LI Pei, WANG Lei, YANG Jian, XUE Huabai*()   

  1. Zhengzhou Fruit Research Institute,Chinese Academy of Agricultural Sciences,Zhengzhou 450009,China
  • Received:2023-04-27 Revised:2023-08-24 Published:2023-11-25 Online:2023-11-28
  • Contact:
    *(E-mail:

摘要:

以国家园艺种质资源库郑州梨分库296份种质资源为试材,在果实成熟期测定果实表面果点大小、密度、凹凸、单位果面果点面积之和,对不同种质资源果实外观品质进行感官综合评价,利用灰色关联分析(Grey relation analysis,GRA)和聚类分析(Cluster analysis,CA)建立不同种质资源果点性状综合评价模型。利用灰色关联分析法得出296份梨种质资源果点性状的相对关联度变化范围在0.3158 ~ 0.6526之间,将296份资源划分为优、良、中、差、极差5个等级。筛选出‘Autumn Red’‘Red Sensatian’‘中梨美萃’‘巴梨’‘大巴梨’等果点性状优良、外观品质优异的种质,及‘蒲瓜梨’‘细花麻壳’‘茌梨’‘恩梨’等果点性状差、外观品质不佳的种质。这一结果与感官评价结果一致。系统聚类分析法将296份梨种质资源聚为5类,对应果点性状优、良、中、差、极差5个等级,分别占种质资源的7.8%、8.8%、37.2%、34.1%、12.1%。综合以上分析方法筛选出的果点性状优异的种质资源可作为梨外观品质改良的基础材料,果点性状极差的种质资源可作为研究梨果点性状的形成和调控机制的材料。

关键词: 梨, 种质资源, 果点, 综合评价

Abstract:

In this study,a total of 296 pear germplasms from National Horticulture Germplasm Resources Center Pear Branch Center(Zhengzhou)were collected for fruit spots observation,data collection and photography. During fruit harvesting period,the indicated pear germplasms were sampled and different fruit spot traits,including fruit spots size,fruit spots density,fruit spots height,and the fruit spots area in unit area were comprehensively analyzed. Additionally,sensory evaluation of fruit appearance quality associated with fruit spots in different pear germplasms was performed,and the apperance quality of different pear germplasms was evaluated by grey relation analysis(GRA)and cluster analysis(CA)to establish a comprehensive evaluation model for pear fruit spot traits. The results showed that the relative correlation degree of fruit spots of 296 pear resources ranged from 0.3158 to 0.6526,and the 296 resources were classified into five grades:excellent,good,medium,poor,and extremely poor. Pear varieties including‘Autumn Red’‘Silk Red’‘Red Sensatian’‘Zhongli Meicui’‘Barlett’and‘Dabali’were screened out with excellent fruit spot traits,which have good appearance quality and were consistent with the actual production fruit exterior. On the contrary,pear varieties including‘Puguali’‘Xihuamake’‘Chili’and‘Enli’were screened out with extremely poor fruit spot traits,which have poor appearance quality. Furthermore,the fruit spot traits of 296 pear germplasm resources were divided into five grades by cluster analysis,including excellent,good,medium,poor and extremely poor,which accounted for 7.8%,8.8%,37.1%,34.1% and 12.1% of the tested materials,respectively. Above all,the germplasm resources with excellent fruit spot traits will lay the foundation for the improvement of pear appearance quality,and the germplasm resources with poor fruit traits will be helpful for the investigation of the formation and regulation mechanism underlying pear fruit spots.

Key words: pear, germplasm, fruit spot, comprehensive evaluation