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首页> 外文期刊>Acta Horticulturae >Metabolic Promoters Affect Yield and Fruit Quality of 'Sanfilippara' and 'Trabia' Loquat
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Metabolic Promoters Affect Yield and Fruit Quality of 'Sanfilippara' and 'Trabia' Loquat

机译：代谢促进剂影响'Sanfilippara'和'Trabia'qua的产量和果实品质

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摘要

Preliminary field trials with foliar applications of phenylalanine, methionine, oxylipins and sugars have shown improvements of external color, sugar content and uniformity of maturation in grapes, pome fruits, tomatoes and melons. In this study, we hypothesized that similar improvements could be obtained both in fruit of 'Trabia' and 'Sanfilippara' loquat (Eriobotrya japonica Lindl.) with applications of a commercial formulate called Sunred (Biolchim, Bologna, Italy) and containing various concentrations of the above metabolic promoters. The study was conducted on 12 'Sanfilippara' and 12 'Trabia' adult loquat trees grown in an orchard near Palermo, Italy. Half of the trees for each cultivar were sprayed twice (20 and 10 days before harvest) with 3L of Sunred solution at a concentration of 4 ml/L, containing a mix of phenylalanine, methionine, oxylipins and sugars. On 21 May 2013, all fruits present in each tree in trial were harvested in one pick, bulk-weighed in the field, and a random sample of about 30 fruits per tree was collected and brought to the laboratory for determination of major quality parameters. Sunred applications increased fruit size and yield per tree by 23.3 and 9.1%, respectively. On the other hand, Sunred applications did not affect average peel color, titratable acidity (TA), or soluble solids (SS)TA, whereas they reduced soluble solids and increased pH. Fruit peel color index exhibited less variability in Sunred-sprayed then in control trees. This suggests that Sunred applications induced a more uniform degree of fruit maturation among loquat trees. Possible explanations and implications of the results obtained are discussed.
机译：在叶面施用苯丙氨酸，蛋氨酸，脂蛋白和糖的初步田间试验表明，葡萄，石榴果，西红柿和瓜的外部颜色，糖含量和成熟均匀性得到改善。在这项研究中，我们假设使用名为Sunred的商业配方（Biolchim，意大利博洛尼亚，意大利）并应用不同浓度的上述代谢促进剂。该研究是在意大利巴勒莫附近果园里种植的12棵'Sanfilippara'和12棵'Trabia'成年lo树上进行的。每个品种的一半树木用浓度为4 ml / L的3L Sunred溶液喷洒两次（收获前20天和10天），其中包含苯丙氨酸，蛋氨酸，脂蛋白和糖的混合物。 2013年5月21日，将一棵采摘的每棵树上的所有水果一次性采收，然后在田间进行大量称重，并从每棵树上随机抽取约30棵水果，并送至实验室以确定主要质量参数。晒干的施用分别使每棵树的果实大小和单产提高了23.3％和9.1％。另一方面，Sunred应用程序不会影响平均果皮颜色，可滴定酸度（TA）或可溶固体（SS）TA，但会减少可溶固体并增加pH。与对照树相比，晒干喷洒的果皮颜色指数变化较小。这表明Sunred的应用在induced树中诱导了更均匀的果实成熟度。讨论了可能的解释和所得结果的含义。

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