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Homeopathy. 2003 Oct;92(4):195-202.

Effects of homeopathic arsenic on tobacco plant resistance to tobacco mosaic virus. Theoretical suggestions about system variability, based on a large experimental data set.

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1
Department of Agro-Environmental Science and Technology, Faculty of Agriculture, Bologna University, Italy. lucietta.betti@unibo.it

Abstract

CONTEXT:

This research aimed at verifying the efficacy of homeopathic treatments by plant-based bioassays, which may be suitable for basic research, because they lack placebo effects and provide large datasets for statistical analyses.

OBJECTIVE:

To evaluate the effects of homeopathic treatments of arsenic trioxide (As2O3) on tobacco plants subjected to tobacco mosaic virus (TMV) inoculation as biotic stress.

DESIGN:

Blind, randomized experiment using tobacco leaf disks.

MATERIALS AND METHODS:

Tobacco plants (Nicotiana tabacum L. cultivar Samsun) carrying the TMV resistance gene N. TMV inoculated leaf disks were floated for 3 days in the following: Distilled water (control). H2O 5 and 45 decimal and centesimal potencies. As2O3 5 and 45 decimal and centesimal potencies. The main outcome measures is the number of hypersensitive lesions observed in a leaf disk.

RESULTS:

Homeopathic treatments of arsenic induce two effects on the plant: (i) increased resistance to TMV; (ii) decrease variability between experiments (system variability).

CONCLUSIONS:

In this experimental model two actions of homeopathic treatment were detected: decrease in system variability and enhancement of the natural tendency of the system towards an 'equilibrium point'.

PMID:
14587686
[Indexed for MEDLINE]
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