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首页> 外文期刊>Journal of the Science of Food and Agriculture >Kaolin,Ascophyllum nodosumand salicylic acid mitigate effects of summer stress improving hazelnut quality
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Kaolin,Ascophyllum nodosumand salicylic acid mitigate effects of summer stress improving hazelnut quality

机译：高岭土，蛔虫，乳突酸水杨酸缓解避暑胁迫改善榛子质量的影响

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BACKGROUND Various strategies are needed to mitigate the negative impact on or to increase fruit quality. The effect of spraying kaolin (K),Ascophyllum nodosum(An) and salicylic acid (SA), in trees with and without irrigation, on quality and sensorial attributes of hazelnut (Grada de Viseu cultivar) was investigated during two consecutive years (2016 and 2017) in a commercial orchard located in Moimenta da Beira, Portugal. RESULTS The treatments affected positively the biometric parameters nut and kernel weight, length, width, thickness and volume as well as the vitamin E level, antioxidant activity and content of some individual phenolics, such as protocatechuic acid, gallocatechin, catechin and epicatechin. The levels of amino acids in hazelnut kernels decreased in all the assayed treatments, while the kernel colour and sensorial attributes were not affected by the treatments. Hazelnut physical properties (nut and kernels), chemical and phytochemical composition and antioxidant activities were positively related. CONCLUSIONS The application of K, An and SA improved the hazelnut tree response to climate change, without compromising the hazelnut chemical and sensorial quality. Furthermore, due to the similar observations for the same treatments with and without irrigation, it can be stated that K, An and SA can be efficient and cost-effective tools to mitigate summer stress in rain-fed orchards. (c) 2020 Society of Chemical Industry
机译：背景：需要采取各种策略来减轻对水果质量的负面影响或提高水果质量。连续两年（2016年和2017年）在葡萄牙莫伊门塔-达贝拉的一个商业果园中，研究了在有灌溉和无灌溉的树木中喷洒高岭土（K）、子囊藻（An）和水杨酸（SA）对榛子（Grada de Viseu品种）质量和感官特性的影响。结果处理对坚果和果仁的生物特征参数、长度、宽度、厚度和体积以及维生素E水平、抗氧化活性和某些酚类物质（如原儿茶酸、没食子酸、儿茶素和表儿茶素）的含量产生了积极影响。在所有试验处理中，榛子仁中的氨基酸水平均降低，而榛子仁的颜色和感官属性不受处理的影响。榛子的物理特性（坚果和果仁）、化学和植物化学成分与抗氧化活性呈正相关。结论K、An和SA的施用改善了榛子树对气候变化的反应，同时不影响榛子的化学和感官质量。此外，由于相同处理（有灌溉和无灌溉）的相似观察结果，可以说K、An和SA是缓解雨养果园夏季压力的有效且经济的工具。（c） 2020年化学工业学会

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