Liu Guangyang, Ge Jie, Fan Jide, Zhao Yongqiang, Lu Xinjuan, Liu Canyu, Zhang Biwei, Yang Qingqing, Li Mengqian, Yang Yan, Feng Yi, Yang Feng
Key Laboratory of Biology and Genetic Breeding of Sweetpotato, Ministry of Agriculture and Rural Affairs, Xuzhou Institute of Agricultural Sciences in Jiangsu Xuhuai Area, Xuzhou 221131, China.
Sweetpotato Research Institute, Chinese Academy of Agricultural Sciences, Xuzhou 221131, China.
Plants (Basel). 2025 Aug 12;14(16):2505. doi: 10.3390/plants14162505.
This study investigated the effects of four selenium fertilizers (nano-Se, EDTA-chelated Se, organic Se, and microbial Se) at three concentrations (50, 25, and 12.5 mg·L) on garlic ( L. cv. 'Xusuan 918') through foliar application during critical growth stages. Comprehensive evaluation combining agronomic traits, yield components, nutritional quality (soluble sugars, vitamin C), and selenium accumulation revealed distinct fertilizer-specific responses. Organic Se at 50 mg·L (O1) maximized vegetative growth (21.83% increased plant spread), while 25 mg·L microbial Se (M2) showed optimal yield enhancement (10.04% higher bulb dry weight vs. CK). Notably, 50 mg·L nano-Se (N1) achieved simultaneous improvement in nutritional quality and selenium biofortification (29-fold bulb Se enrichment). Principal component analysis integrated with membership function method identified N1 treatment (D-value = 0.571) as the most effective protocol for selenium-enriched garlic production, demonstrating the importance of fertilizer selection for crop-specific selenium management strategies.
本研究通过在关键生长阶段进行叶面喷施，研究了三种浓度（50、25和12.5 mg·L）的四种硒肥（纳米硒、乙二胺四乙酸螯合硒、有机硒和微生物硒）对大蒜（品种‘徐蒜918’）的影响。结合农艺性状、产量构成因素、营养品质（可溶性糖、维生素C）和硒积累的综合评价揭示了不同肥料的特异性响应。50 mg·L的有机硒（O1）使营养生长最大化（植株展开度增加21.83%），而25 mg·L的微生物硒（M2）表现出最佳的产量提高效果（鳞茎干重比对照高10.04%）。值得注意的是，50 mg·L的纳米硒（N1）实现了营养品质和硒生物强化的同时提升（鳞茎硒富集29倍）。主成分分析结合隶属函数法确定N1处理（D值 = 0.571）为富硒大蒜生产最有效的方案，证明了肥料选择对作物特异性硒管理策略的重要性。
