叶喷硒肥处理下澳洲坚果果仁硒的有效积累量与游离氨基酸的关系
Links Between Selenium Accumulation and Free Amino Acids in Macadamia Nuts Treated with Foliar Selenium Fertilizer
摘要
Abstract
The elite Macadamia cultivar,'Guire 1',as experimental material,was treated with selenium fertilizer via foliar spraying at various growth stages.The selenium content and free amino acid composition in macadamia nuts of different selenium fertilizer treatments were measured and analyzed.The findings indicated that foliar application of selenium fertilizer effectively enhanced the accumulation of selenium in the kernels of macadamia nuts.The time of foliar application of selenium fertilizer significantly influenced the effective accumulation of selenium in kernels.Notably,foliar application during the full-bloom stage resulted in significantly higher accumulation than that at other stages.Principal component analysis(PCA)was employed to develop a comprehensive evaluation model for the effective accumulation of selenium in kernels from different treatments.The model indicated that the optimal comprehensive quality of free amino acids was attained when the selenium accumulation in kernels reached 0.223 mg/kg.The reliability and validity of the evaluation model were further corroborated through stepwise regression analysis.This study provided theoretical and practical foundations for improving macadamia quality traits and established a basis for standardizing selenium fertilization protocols.关键词
叶喷硒肥/澳洲坚果/硒/游离氨基酸Key words
Foliar spraying with selenium fertilizer/Macadamia/Selenium/Free amino acid引用本文复制引用
张涛,宋海云,贺鹏,陈茜,潭秋锦,许鹏,韦哲君,王文林..叶喷硒肥处理下澳洲坚果果仁硒的有效积累量与游离氨基酸的关系[J].农业科技与技术（英文）,2025,26(4):55-65,11.基金项目
Supported by Stable Funding Research Team Project of Guangxi Academy of Agricultural Sciences(Guinongke2026YT023) （Guinongke2026YT023）
Chongzuo City Science and Technology Program Project(Chongke20210710) （Chongke20210710）
Science and Technology Vanguard Team Special Action Program Project of Guangxi Academy of Agricultural Sciences(Guinongkemeng202504) （Guinongkemeng202504）
Basic Scientific Research Business Special Project of Guangxi Academy of Agricultural Sciences(Guinongke2024YP116) （Guinongke2024YP116）
Stable Funding Scientific Research Team Project of Guangxi Institute of Subtropical Agriculture Sciences(NYS2025ST01)广西农业科学院稳定资助科研团队项目(桂农科2026YT023) （NYS2025ST01）
崇左市科技计划项目(崇科20210710) （崇科20210710）
广西农业科学院科技先锋队专项行动计划项目(桂农科盟202504) （桂农科盟202504）
广西农业科学院基本科研业务专项项目(桂农科2024YP116) （桂农科2024YP116）
广西南亚热带农业科学研究所稳定资助科研团队项目(NYS2025ST01). （NYS2025ST01）
