Plants don’t know what a placebo is.

Translational value.

The placebo is a powerful confounding factor in research, but does it also apply to studies involving plants

This study aimed to observe the reproducibility of previous research by examining the effects of Arsenic trioxide (AT) in 45x dilutions.

The wheat plants were subjected to AT toxicity, followed by treatment with potentised AT (5x–45x potencies), potentised water, and diluted AT over a period of 9 weeks. Stem length was measured to compare all groups.

AT 45x induced a relevant increase in seedling growth and a variability decrease.

Significant stimulating effect on seedling growth and a significant decrease of variability were obtained with ultra-high dilutions at the 45x potency.

Study Ref: Maurizio Brizzi et al. A biostatistical insight into the As(2)O(3) high dilution effects on the rate and variability of wheat seedling growth. Forsch Komplementarmed Klass Naturheilkd 2005 Oct;12(5):277-83.

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