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Chinese Agricultural Science Bulletin ›› 2024, Vol. 40 ›› Issue (19): 40-46.doi: 10.11924/j.issn.1000-6850.casb2023-0578

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Comparison of Agronomic Characters of White Celery in Autumn-Winter in Suqian Area of Jiangsu

WU Xiaoxue1, CHEN Chen1, WANG Lixiang2, ZENG Xiaoping3, LIU Peizhuo1, WANG Yahui1, LIU Yanhua1, JIA Haifeng1,2, SHU Sheng1,2, XIONG Aisheng1,2()   

  1. 1 College of Horticulture, Nanjing Agricultural University/ State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization/ Key Laboratory of Horticultural Crop Biology and Germplasm Creation in East China, Ministry of Agriculture and Rural Affairs, Nanjing 210095
    2 Suqian Facility Horticulture Research Institute (Suqian Research Institute of Nanjing Agricultural University), Suqian, Jiangsu 223800
    3 Jiangsu Provincial Agricultural Technology Promotion Station, Nanjing 210036
  • Received:2023-08-15 Revised:2024-03-17 Online:2024-07-05 Published:2024-07-02

Abstract:

In order to solve the problem that celery production is dominated by green celery with relatively single variety in Suqian, Jiangsu Province, 29 white celery cultivars planted in Yanghe New District, Suqian City, Jiangsu Province in autumn 2022 were used as experimental materials to compare main agronomic traits. The differences, correlations, principal components and clustering analyses were conducted on 8 major agronomic traits. The results showed that the coefficient of variation of 8 agronomic traits of white celery was 9.390%-71.610%. The coefficients of variation of single plant quality, plant height, petiole length, petiole thickness and petiole number were greater than 20%, indicating that the traits of different white celery cultivars varied greatly. The correlation analysis results showed that except petiole number was negatively correlated with petiole width and petiole thickness, there was a positive correlation between other traits, and the quality of single plant was significantly positive correlated with other traits. The principal component analysis showed that the cumulative contribution rate of the first two principal components was 77.005%. Through cluster analysis, 29 cultivars of white celery germplasm resources could be divided into 3 taxa at 7.5 genetic distances.

Key words: celery, agronomic traits, differential analysis, correlation analysis, principal component analysis, cluster analysis