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Investigating the Role of Silicon and Selenium on Yield and Related Traits in Quince Tree of Isfahan Variety
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Sakeneh Mahmodi   , Zahra Pakkish , Soheila Mohammadrezakhani |
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Abstract: (30 Views) |
This study aimed to investigate the effects of silicon (Si) and selenium (Se) application on growth parameters, yield, and fruit quality in Cydonia oblonga Mill. (Isfahan variety). The experimental treatments included selenium (0.5 and 1 mg L⁻¹) and silicon (1 and 2 mM), applied via foliar spraying at two stages: 30 and 45 days after full bloom (corresponding to April 25 and May 10, respectively). Evaluated parameters included leaf area, chlorophyll index, quantitative and qualitative fruit yield, fruit weight, soluble solids content (SSC), titratable acidity (TA), organic acids, total phenolics, vitamin C, anthocyanins, and carotenoids. Analysis of variance revealed that the combined treatment of 1 mg L⁻¹ selenium and 2 mM silicon applied 45 days after flowering significantly (P ≤ 0.05) increased fruit weight, tree yield, chlorophyll index, phenolic compounds, vitamin C, anthocyanins, and carotenoids. Additionally, this treatment enhanced soluble solids content while markedly reducing fruit acidity. In conclusion, the findings demonstrate the efficacy of combined silicon and selenium application—particularly at the specified concentrations—in improving both the quantitative and qualitative yield of the Isfahan quince variety. This approach could be recommended as a viable management strategy for orchards. |
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| Keywords: Selenium, Silicon, Yield, Carotenoids, Vitamin C |
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Type of Study: Applicable |
Subject:
Pomology
Received: 2023/09/20 | Accepted: 2025/08/19 | Published: 2025/09/30
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