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Chinese Agricultural Science Bulletin ›› 2024, Vol. 40 ›› Issue (1): 20-27.doi: 10.11924/j.issn.1000-6850.casb2023-0051

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Difference Analysis of the Main Economic Characters and Fatty Traits of 19 Camellia oleifera Cultivars Fruit

JI Linlin1(), CHEN Suchuan1, YAO Xiaohua2, ZHANG Wensheng3, HAN Wenyan1, YIN Liubiao3   

  1. 1 Anhui Academy of Forestry, Hefei 230094
    2 Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400
    3 Forest Bureau of Taihu City, Taihu, Anhui 246400
  • Received:2023-01-29 Revised:2023-09-14 Online:2024-01-05 Published:2023-12-29

Abstract:

Contents of the main nutrients and the main economic characteristics of fruit from 19 Camellia oleifera cultivars were comprehensively analyzed and compared to screen cultivars exhibiting superior quality. To facilitate comparison, a cluster analysis was conducted on the economic characteristics, plant yield and seven main nutrient components of fruit from 19 Camellia oleifera. The study revealed significant differences in the fresh fruit masses, fresh seed mass, plant yield, kernel oil content of protein content and primary fatty acid composition. Notably, ‘Xianglin No.7’ exhibited the highest fresh fruit mass, while ‘Changlin No.3’ demonstrated the most elevated rates of fresh seed, dry kernel rate and plant yield. Correlation analysis further established a highly significant positive relationship between oil content and stearic acid as well as oleic acid content, while a significant negative correlation was observed between oleic acid and linoleic acid content. According to the evaluation model, the highest quality cultivars were determined to be ‘Xianglin No.7’, ‘Xianglin No.40’, and ‘Changlin No.53’. Utilizing the outcomes of cluster analysis, the 19 Camellia oleifera cultivars were categorized into four groups, with ‘Changlin No.3’ and ‘Xianglin No.7’ forming distinct clusters respectively, while ‘Changlin No.53’, ‘Xianglin No.40’ and ‘Xianglin No.97’ being grouped together, and other excellent samples of Camellia oleifera cultivars were classified as one type. The content of oleic acid and oil content could offer a scientific basis for the breeding of Camellia oleifera cultivars as genetic resources. Their divergent economic and nutritional attributes provide valuable insights for their development and utilization. In light of the analysis results, the recommended cultivars for cultivation are ‘Xianglin No.7’, ‘Xianglin No.40’ and ‘Changlin No.53’, while the more suitable options are ‘Changlin No.18’, ‘Xianglin No.1’ and ‘Xianglin No.26’.

Key words: Camellia oleifera, cultivars, economic characteristics, nutrients, cluster analysis