Winter wheat (Triticum aestivum L.) is one of the most important arable crops. Copper-containing fertilizers are used in crop production to treat or reduce the negative effects of copper deficiency. Various copper compounds are also widely used as effective fungicide agents. The influence of a copper-containing foliar fertilizer prepared from a copper solution and sucrose had been tested on the yield and raw protein content of winter wheat in previous field experiments. In this work, we studied the antifungal effect of this particular foliar fertilizer in an in vitro trial, wherein the fungicide effect on growth and reproduction of specific plant pathogens, i.e., Fusarium graminearum and Drechslera sorokiniana, was evaluated with the agar well diffusion method. The results showed that doses of the foliar fertilizer corresponding to field applications of at least 1 kg ha−1 had antifungal effects, which were significant (P 0.95) was found between copper concentration and fungicide efficiency in the concentration range studied. The fungicide efficiency of the foliar fertilizer was lower than that of the commercially available copper-oxychloride fungicide. The sole use of the foliar nutrient tested probably cannot replace fungicide treatments. However, in addition to its plant nutrition effect, its antifungal properties should also be taken into consideration.

中文翻译：

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含铜叶面肥的抗真菌作用研究

冬小麦（Triticum aestivum L.）是最重要的可耕作物之一。含铜肥料用于作物生产以治疗或减少铜缺乏症的负面影响。各种铜化合物也被广泛用作有效的杀菌剂。在以前的田间试验中，已经测试了由铜溶液和蔗糖制备的含铜叶面肥对冬小麦产量和粗蛋白含量的影响。在这项工作中，我们在体外试验中研究了这种特殊叶面肥的抗真菌作用，其中使用琼脂井扩散法评估了杀真菌剂对特定植物病原体（即禾谷镰刀菌和 Drechslera sorokiniana）生长和繁殖的影响。结果表明，对应于至少 1 kg ha-1 田间施用的叶面肥剂量具有抗真菌作用，在所研​​究的浓度范围内，铜浓度和杀真菌剂效率之间存在显着性（P = 0.95）。叶面肥的杀菌效率低于市售的氯氧化铜杀菌剂。仅使用所测试的叶面养分可能无法替代杀菌剂处理。然而，除了其植物营养作用外，还应考虑其抗真菌特性。叶面肥的杀菌效率低于市售的氯氧化铜杀菌剂。仅使用所测试的叶面养分可能无法替代杀菌剂处理。然而，除了其植物营养作用外，还应考虑其抗真菌特性。叶面肥的杀菌效率低于市售的氯氧化铜杀菌剂。仅使用所测试的叶面养分可能无法替代杀菌剂处理。然而，除了其植物营养作用外，还应考虑其抗真菌特性。