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Influence of biochar application on nutritional quality of tomato (Lycopersicon esculentum)

机译：生物炭施用对番茄营养品质的影响

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摘要

The potential of biochar to improve crop productivity has received interest in recent years; however, little is known about the effects of biochar on crop nutritional quality. In this study, effects of three different biochars (wheat straw biochar, poplar biochar and olive residues biochar) were determined on the major fruit-size parameters, physico-chemical and nutritional properties of tomato (Lycopersicon esculentum L.) cv. Rio Grande. Application of biochar alone was sufficient to sustain the fruit growth, but results were affected by feedstock source of biochar. There were no significant differences in size and weight parameters and the sugar content was not significantly modified by biochar amendment. On the other hand, secondary metabolites showed changes relating to biochar type. Total phenol and flavonoid contents, as well as antioxidant activity, were higher in fruits grown in substrate amended with straw biochar and olive residues biochar. Lycopene, carotene and lutein concentrations from tomato fruits grown on substrates amended with different biochars were significantly lower than from the control. The data require confirmation in field experiments; however, this study offers new knowledge about the biochar effects on horticultural crops.
机译：近年来，生物炭提高农作物生产力的潜力受到了关注。然而，关于生物炭对作物营养质量的影响知之甚少。在这项研究中，确定了三种不同生物炭（小麦秸秆生物炭，杨树生物炭和橄榄渣生物炭）对番茄（Lycopersicon esculentum L.）cv的主要果实大小参数，理化和营养特性的影响。里奥格兰德。单独施用生物炭足以维持果实生长，但结果受生物炭原料来源的影响。大小和重量参数没有显着差异，并且糖含量没有因生物炭改良而显着改变。另一方面，次生代谢产物显示出与生物炭类型有关的变化。在用秸秆生物炭和橄榄渣生物炭改良的基质中生长的果实中的总酚和类黄酮含量以及抗氧化活性更高。在用不同生物炭改良的基质上生长的番茄果实中番茄红素，胡萝卜素和叶黄素的浓度显着低于对照。数据需要在现场实验中确认;然而，这项研究提供了有关生物炭对园艺作物影响的新知识。

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