The search for ecological technologies that favour germination processes in agricultural and forestry seeds is a topic of interest as an environmentally friendly option. This study was a systematic review and meta-analysis to examine whether magnetic field direct exposure of seeds has a specific effect on germination. Using Scopus (2000–2020) and Web of Science (2000–2020) databases, a bibliographic search was carried out using the following expressions (pre-sowing AND seed AND magnetic) to filter the references in the title, abstract and keywords of the articles published. The calculation and declaration of the effect size was performed by comparing binary results through applying the Odds-Ratio register with a 95% confidence interval (CI). The random effects model was applied with the DerSimonian and Laird method. A total of 175 articles were found, of which only 26 were accepted for systematic review and meta-analysis. Three subgroups were established according to the magnetic field strengths. The subgroup corresponding to intensities between 1 and 50 mT presented an Odds-Ratio of 0.49 with a CI of (0.19, 0.79), Q (14) = 24.77, p = 0.04, indicating that the treatment had a significant effect. The remaining subgroups showed no significant effect. Likewise, the global meta-analysis revealed a significant effect in favour of the treatment, with an Odds-Ratio of 0.68, a CI of (0.41, 0.94), Q (28) = 44.03, p = 0.03. From the studies included in the meta-analysis, the results show a significant effect of seed direct exposure to magnetic fields that can be used to increase seed germination.

寻找有利于农业和林业种子发芽过程的生态技术是一个令人感兴趣的话题，因为它是一种环境友好的选择。本研究是一项系统回顾和荟萃分析，旨在检查磁场直接暴露是否对种子发芽有特定影响。使用 Scopus (2000-2020) 和 Web of Science (2000-2020) 数据库，使用以下表达式（预播种 AND 种子和磁性）进行书目搜索，以过滤标题、摘要和关键字中的参考文献发表的文章。效果大小的计算和声明是通过应用具有 95% 置信区间 (CI) 的优势比寄存器来比较二进制结果来执行的。随机效应模型采用 DerSimonian 和 Laird 方法。共检索到 175 篇文章，其中只有 26 篇被接受进行系统评价和荟萃分析。根据磁场强度建立了三个亚组。对应于 1 到 50 mT 之间的强度的亚组的优势比为 0.49，CI 为 (0.19, 0.79)，Q (14) = 24.77，p  = 0.04，说明治疗效果显着。其余亚组无显着影响。同样，全球荟萃分析显示出有利于治疗的显着效果，优势比为 0.68，CI 为 (0.41, 0.94)，Q (28) = 44.03，p  = 0.03。从荟萃分析中包含的研究中，结果显示种子直接暴露于可用于增加种子发芽的磁场的显着影响。