Effects of Wi-Fi on Growth of Broccoli, Pea, Red & other Seedlings

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Effects of Wi-Fi Radiation on Germination and Growth: A Partial Replication Study

The increasing prevalence of Wi-Fi technology has raised concerns about the potential effects of radiation on living organisms.

This research article presents a partial replication study conducted to investigate the impact of Wi-Fi radiation on the germination and growth of garden cress, broccoli, red clover, and pea seedlings.

The study aims to determine whether radiation emitted by Wi-Fi routers affects the development of these plant species.


As wireless technology continues to expand globally, levels of microwave radiation from Wi-Fi routers have also increased. This study builds upon previous work conducted by high school students in Denmark as part of their science fair project.

The Danish study found that cress seedlings exposed to Wi-Fi radiation exhibited poor germination and growth compared to those in a radiation-free environment.


  • The researchers used two sets of seeds for each plant species: one exposed to microwave radiation generated by a Wi-Fi router and the other kept under identical conditions without exposure (reference).
  • The Wi-Fi-exposed seeds experienced mean and maximum radiation exposures of 20-40 mW/m² and 96 mW/m², respectively, while the reference seeds had significantly lower microwave exposure of 0.0001 mW/m².
  • After one month, the seedlings were harvested, and their biomass (dry weight) was recorded.


The study found that Wi-Fi radiation did not impact the germination of any tested species. However, significant reductions in dry weight were observed in broccoli (86% of control) and peas (43% of control) exposed to Wi-Fi radiation (p<0.01).

Plant SpeciesGerminationDry Weight BiomassPlant Height
Garden CressNo EffectNo EffectNo Effect
BroccoliNo EffectReduced (86% of control)No Effect
Red CloverNo EffectNo EffectNo Effect
PeaNo EffectReduced (43% of control)Reduced
Note: “No Effect” indicates that there was no significant difference observed between the Wi-Fi exposed group and the reference group.

Furthermore, Wi-Fi exposure inhibited root growth in several species, caused browning of root tips, and reduced root hairs in garden cress compared to the reference group.

Broccoli seedlings grew away from the Wi-Fi router, and cress seedlings exhibited larger leaves and signs of chlorosis compared to the control group.

Some plants even began to die, and mold developed in certain Petri plates.


The findings of this study, along with the supporting evidence from related research, demonstrate that radiation emitted by Wi-Fi routers can have adverse effects on plant growth, even at levels well below international guidelines for microwave radiation.

The observed stress responses at the cellular level further highlight the potential harm caused by microwave radiation exposure in plants. Considering that vegetation near cell phone base stations with multiple antennas may also be constantly exposed to microwave radiation, it raises concerns about the possible impact on human health.

Here’s another table summarizing the main findings from the studies mentioned:

StudyPlant SpeciesExposure ConditionsEffects
Study [13]Tomato plants900 MHz (5 Vm-1) for 10 minutesDifferences in stress-related transcripts and ATP levels
Study [7]Duckweed400 and 900 MHz at various intensitiesInduced oxidative stress and mitotic aberrations
Study [14]Onion seeds400 and 900 MHz at various field strengths for 2 hoursNo significant changes in germination or root length
Study [8]Mung beans900 MHz (8.55 μWcm-2) for varying durationsInhibited germination and root growth, oxidative stress
Study [9]Rose bush900 MHz at 5 and 200 Vm-1Delayed morphological responses
Present StudyBroccoli seeds2.4 GHz Wi-Fi radiation for 30 daysInhibited plant growth
Please note that this table provides a concise overview of the studies mentioned in the source material, and their key findings. Additional details and nuances may exist within each study.

As we have seen that microwave radiation from a household Wi-Fi router can harm plants, further investigation is needed to determine its potential adverse effects on people.

These findings emphasize the importance of understanding the long-term effects of microwave radiation exposure on plants and the need for comprehensive research in this field.

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