| Effects of foliar fertilizers on fruit quality of ‘Yanfu 3’ apple on the Loess Plateau |
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| DOI：10.7606/j.issn.1000-7601.2025.01.11 |
| Key Words: apple foliar fertilizer fruit quality aroma composition Loess Plateau |
| Author Name | Affiliation | | SHI Guangling | College of Horticulture, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | DONG Yuanyuan | College of Horticulture, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | LI Shimei | College of Horticulture, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | ZENG Baozhen | College of Horticulture, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | LU Shixiong | College of Horticulture, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | LIANG Guoping | College of Horticulture, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | CHEN Baihong | College of Horticulture, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | MAO Juan | College of Horticulture, Gansu Agricultural University, Lanzhou, Gansu 730070, China |
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| Abstract: |
| The 6-year-old ‘Yanfu 3’ apple trees in Ning County, Qingyang, Gansu Province, were used as the test subjects. A total of 16 foliar fertilizer treatments including Yip San Mei amino acid enzyme solution (T1), fluidized calcium (T2), glycolic boron (T3), mineral\|source fulvic acid potassium (T4), organosilicon + enzyme calcium (T5), Yip San Mei+fluidized calcium+glycolic boron (T6), Yip San Mei+fluidied calcium + glycolic boron + organosilicon (T7), Yip San Mei + fluidized calcium + glycolic boron + organosilicon + mineral\|source fulvic acid potassium (T8), canthaxanthin (T9), canthaxanthin + double promotion of flower buds (T10), Lepure medium\|weight elements of water\|soluble fertilizers + organosilicon (T11), antibacterial agent (T12), amylopectin (T13), antibacterial agent + amylopectin (T14), white sugar + enzyme + urea (T15), antibacterial agent + amylopectin + Lepure + white sugar + enzyme + urea (T16) were set up with water spray (CK) as the control. The study was to determine the different treatments of fruit quality\|related indicators. The results showed that spraying foliar fertilizers increased the quality of single fruit, the longitudinal diameter of the fruit and the fruit shape index, among which the T12 treatment had the best effect, which were 357.21 g, 87.17 mm, and 0.94, respectively. The fruit hardness increased significantly under T14 treatment, which was 8.60 kg·cm-2, while T12 treatment significantly increased the soluble solid content in the fruit, which was 16.7%. T14 treatment had the best effects on soluble sugar content and soluble protein with 13.90% and 0.21 mg·g-1 respectively. The contents of fructose and sucrose increased most significantly under T11 and T12 treatments, with 72.52 mg·g-1 and 56.91 mg·g-1, respectively. Aldehydes, esters, and alcohols were the main types of aroma substances in ‘Yanfu 3’ fruits. Among the aldehydes, n-hexanal and 2-hexenal had the highest content. The content of n-hexanal ranged from 108.81 to 304.45 μg·kg-1, and 2-hexenal content was 123.07~400.27 μg·kg-1. This study found that hexyl acetate, n-hexanal, and 2-hexenal were the characteristic aroma components of ‘Yanfu 3’ fruits. T11, T12 and T14 treatments were more effective in improving the fruit quality of ‘Yanfu 3’ apples in the Loess Plateau. |
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