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Acta Horticulturae Sinica ›› 2025, Vol. 52 ›› Issue (7): 1707-1717.doi: 10.16420/j.issn.0513-353x.2024-0778

• Genetic & Breeding·Germplasm Resources·Molecular Biology • Previous Articles     Next Articles

Analysis of Agronomic Traits and Fatty Acid Composition of Macadamia Germplasm Resources in Yunnan Province

ZHU Yi1, YANG Hongxia2, ZHENG Weikang1, TANG Shaoping2, CHAI Lijun1,*(), YANG Fan2,*(), MA Zhaocheng3,*()   

  1. 1 National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops,College of Horticulture & Forestry Sciences,Huazhong Agricultural University,Wuhan 430070,China
    2 Institute of Tropical and Subtropical Economic Crops,Yunnan Academy of Agricultural Sciences Research,Ruili,Yunnan 678600,China
    3 School of Public Health,Wuhan University,Wuhan 430071,China
  • Received:2025-01-20 Revised:2025-03-06 Online:2025-07-23 Published:2025-07-23
  • Contact: CHAI Lijun, YANG Fan, MA Zhaocheng

Abstract:

This study analyzed the correlation between agronomic traits,fatty acid content and composition of 32 macadamia germplasms in Yunnan Province. The results showed that the variety with the largest kernel weight was Changning 1(3.83 g),the variety with the largest nut recovery was Guangxi 1(57.10%),the cultivar with the largest kernel recovery was Honghua(38.42%),and the variety with the highest oil extraction rate was 695(66.97%);the rounded the macadamia fruits were,the higher the nut recovery was,and there was a negative correlation between the weight of the green skinned layer and kernel recovery. Nine fatty acids were detected in Macadamia oil,70.97% of which were monounsaturated fatty acids(MUFA),and ω-7 fatty acid(palmitoleic acid)was the most abundant in H2 varieties(20.47%).

Key words: macadamia, germplasm, fatty acid, agronomic traits, fruit