Alemán Elizabeth Isaac, Díaz Rangel Sierra, Dubois Albys Ferrer, Boix Yilan Fung, Aguilera Jorge González, Zuffo Alan Mario, Steiner Fábio
National Center for Applied Electromagnetism, Universidad de Oriente (UO), Santiago de Cuba, Cuba.
Faculty of Chemical Engineering and Agronomy, Universidad de Oriente (UO), Santiago de Cuba, Cuba.
Bioelectromagnetics. 2025 Feb;46(2):e22537. doi: 10.1002/bem.22537.
Effects of 60 Hz non-uniform electromagnetic fields (EMFs) on the tomato (cv. L-05) seed germination, photosynthesis, and seedling growth under salt stress and laboratory conditions were investigated. A previous trial investigated the impact of salt stress levels (0, 40, 60, 80, and 100 mM NaCl) on tomato seeds, and the 100 mM NaCl level was selected to study the effects of EMFs in attenuating salinity stress on germination, physiology, and growth of tomato seedlings. In the second experiment, untreated seeds and seeds treated with nonuniform EMFs of 2, 4 and 6 mT for 9 min were exposed to a 100 mM NaCl saline solution (SS). The results of the first bioassay showed that the addition of SS drastically reduced the germination percentage (67%), mean germination time (54%), mean germination speed (69%), germination rate index (39%), and germination vigor (78%) of tomato seeds when compared to the control treatment. In the second experimental trial, the effect of pretreatment of tomato seeds with EMFs of 2 or 4 mT for 9 min exposed to SS stress revealed a significant increase in the germination percentage (224%-226%) and germination rate (128%-151%). Salinity stress drastically reduced the tomato seed germination while 60 Hz nonuniform EMFs induced a mitigating response of tomato seeds under salinity stress to improve the germination, photosynthesis, and seedling growth. The 60 Hz nonuniform EMFs of 4mT for 9 min showed the best biological responses under salinity stress. Applied EMFs to tomato seeds protect tomato plants under salinity stress. Bioelectromagnetics. 00:00-00, 2024. © 2024 Bioelectromagnetics Society.
研究了60赫兹非均匀电磁场（EMF）在盐胁迫和实验室条件下对番茄（品种L-05）种子萌发、光合作用及幼苗生长的影响。先前的一项试验研究了盐胁迫水平（0、40、60、80和100 mM氯化钠）对番茄种子的影响，并选择100 mM氯化钠水平来研究电磁场在减轻盐胁迫对番茄幼苗萌发、生理和生长影响方面的作用。在第二个实验中，将未处理的种子以及用2、4和6 mT非均匀电磁场处理9分钟的种子暴露于100 mM氯化钠盐溶液（SS）中。第一次生物测定结果表明，与对照处理相比，添加盐溶液显著降低了番茄种子的发芽率（67%）、平均发芽时间（54%）、平均发芽速度（69%）、发芽率指数（39%）和发芽活力（78%）。在第二个试验中，用2或4 mT电磁场预处理番茄种子9分钟后再暴露于盐溶液胁迫下，结果显示发芽率（224%-226%）和发芽速率（128%-151%）显著提高。盐胁迫显著降低了番茄种子的萌发，而60赫兹非均匀电磁场可诱导番茄种子在盐胁迫下产生缓解反应，从而改善种子萌发、光合作用和幼苗生长。4 mT的60赫兹非均匀电磁场处理9分钟在盐胁迫下表现出最佳的生物学反应。对番茄种子施加电磁场可在盐胁迫下保护番茄植株。生物电磁学。00:00 - 00, 2024。© 2024生物电磁学协会。
