ArticleBMC plant biology2025
Foliar application of nano zero-valent iron improves the fruit quality of 'Yanfu No.6' apple.
Article in BMC plant biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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8 authors.
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Abstract
backgroundIn recent years, the apple industry in Jingning County has developed rapidly. However, due to the neglect of the importance of trace elements in apple cultivation, iron chlorosis often occurs in fruit trees, affecting the growth of the industry. This study investigates the effects of different concentrations of nano-zero-valent iron (nZVI) on apple tree growth and fruit aims to provide theoretical references for determining the optimal nZVI concentration to improve the quality of Jingning apples.
resultsThis study systematically analyzed the effects of different concentrations of nanoscale zero-valent iron (nZVI) on the growth and fruit quality of 'Yanfu No.6' apple trees. The experimental results showed that compared with the control group (CK), the T2 treatment group at a concentration of 10 mg L⁻¹ significantly promoted the growth of apple tree shoots, as evidenced by an increase of about 15% in shoot length and a 10% increase in base diameter (p < 0.05). At the same time, this concentration treatment significantly improved the photosynthesis rate, SPAD value, and enzyme activities of apple leaves, including peroxidase (POD), superoxide dismutase (SOD), and catalase (CAT), and the enhancement effect remained stable at multiple time points. Furthermore, the T2 treatment at a concentration of 10 mg L⁻¹ significantly improved the appearance quality and intrinsic quality of apple fruit, specifically by increasing fruit weight, achieving a coordinated ratio of fruit diameter, having moderate hardness, and increasing soluble protein and vitamin C content.
conclusionIn this study, the appropriate concentration of nZVI promoted the growth and fruit quality of "Yanfu No.6" apple tree, among which, the nano-zero-valent iron with a concentration of 10 mg L
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