Growth Stimulation of Dwarf Peas (Pisum sativum L.) through Homeopathic Potencies of Plant Growth Substances

Universität Bern, Berna, Bern, Switzerland
Forschende Komplementärmedizin und Klassische Naturheilkunde / Research in Complementary and Classical Natural Medicine 11/2004; 11(5):281-92. DOI: 10.1159/000082149
Source: PubMed


Efficacy of higher homeopathic potencies is controversial. Universally accepted specific detection assays for homeopathic dilutions do not exist. Basic research has to develop a spectrum of standardized tools to investigate the mode of action and nature of homeopathic potencies.
Can the shoot growth reaction of dwarf peas (gibberellin- deficient mutants) be regarded as evidence of treatment with homeopathic potencies of plant growth substances?
Pea seed (Pisum sativum L. cv. Fruher Zwerg) is immersed for 24 hours in homeopathic potency or control solutions for soaking. Plants germinate and grow in a standard cultivation substrate under controlled environmental conditions. Shoot length is measured 14 days after planting.
A screening of homeopathic potencies (12x-30x) of four different plant growth substances revealed biological activity of certain potency levels of gibberellin and kinetin (p < 0.05). Growth stimulation through gibberellin 17x (5 x 10(-18 M)) was assessed in six independent replications; results confirmed those of the screening (p < 0.05). The effect of gibberellin 17x seemed to weaken during the course of the experiments.
The results back the hypothesis that homeopathic potencies of plant growth substances affect pea shoot growth. Dwarf peas might thus be an interesting system model for studying the action of homeopathic potencies. Further work is required to identify all boundary conditions modulating the reactivity of this system.

Download full-text


Available from: Stephan Baumgartner
  • Source
    • "This has led to the idea that calculation on the basis of absolute differences between means of verum and control group may be a useful statistical tool complementing calculation of means alone [9]. For the study presented here, the use of ultrahigh diluted potentized hormones has been inspired by zoological studies (on amphibians and thyroxin) [10] [11] [12] and by botanical studies of Baumgartner et al. (dwarf pea shoot growth/duckweed development and gibberellic acid) [13] [14] [15]. Baumgartner's experiments showed a reproducible stimulation of growth by the dilution 10 −17 in some but not all subexperiments, depending on the harvest lots used. "
    [Show abstract] [Hide abstract]
    ABSTRACT: The influence of a homeopathic high dilution of gibberellic acid on wheat growth was studied at different seasons of the year. Seedlings were allowed to develop under standardized conditions for 7 days; plants were harvested and stalk lengths were measured. The data obtained confirm previous findings, that ultrahigh diluted potentized gibberellic acid affects stalk growth. Furthermore, the outcome of the study suggests that experiments utilizing the bioassay presented should best be performed in autumn season. In winter and spring, respectively, no reliable effects were found.
    Full-text · Article · Sep 2011 · The Scientific World Journal
  • [Show abstract] [Hide abstract]
    ABSTRACT: A Japanese Kanji name input support system for telephone/telegraph operators (TOPAZ-N) is developed that helps operators to input the Kanji characters of Japanese proper nouns. The system disambiguates many Kanji candidates by analyzing phrases of spoken style transcribed Japanese explanations. This system is installed on 2300 online terminals in Japan for the Japanese Kanji Telegraph service. The service began on February 1, 1994. Telegram traffic averages 100000 messages a day
    No preview · Conference Paper · Mar 1995
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: Homeopathic potencies are used as specific remedies in complementary medicine. Since the mode of action is unknown, the presumed specificity is discussed controversially. This study investigated the effects of potentised substances on two yeast species, Saccharomyces cerevisiae and Schizosaccharomyces pombe, in a stable and reliable test system with systematic negative controls. Yeast cells were cultivated in either potentised substances or water controls in microplates and their growth kinetics were measured photometrically. Water control runs were performed repeatedly to investigate the stability of the experimental set-up (systematic negative controls). 4 out of 14 screened substances seem to have affected the growth curve parameters slope or yield. Out of these substances, azoxystrobin and phosphorus were chosen for 8 further replication experiments, which partly confirmed the results of the screening. On the average of all experiments, azoxystrobin affected the slope of the growth curve of Saccharomyces cerevisiae (p < 0.05), and phosphorus affected the slope of the growth curve of Schizosaccharomyces pombe (p < 0.05). No effects were seen in the water control runs. In addition, significant interactions between treatment with potentised substances and experiment number were observed in all experiments with potentised substances (p < 0.01), but not in the water control runs. Both yeast species reacted to certain potentised substances by changing their growth kinetics. However, the interactions found point to additional factors of still unknown nature, that modulate the effects of potentised substances. This stable test system with yeasts may be suitable for further studies regarding the efficacy of homeopathic potencies.
    Full-text · Article · Oct 2006 · Forschende Komplementärmedizin / Research in Complementary Medicine
Show more