Germination and vigor of lettuce seeds (Lactuca sativa L.) pelleted with homeopathic preparations Alumina and Calcarea carbonica subjected to toxic levels of aluminum.


  • Filipe Pereira Giardini Bonfim Universidade Federal de Viçosa
  • Rosana Gonçalves Rodrigues das Dores Universidade Federal de Ouro Preto
  • Ernane Ronie Martins Universidade Federal de Minas Gerais
  • Vicente Wagner Dias Casali Universidade Federal de Viçosa


Aluminum toxicity, Homeopathic preparations, Lettuce, Germination, Vigor, Pelleted seeds


Background: aluminum toxicity is the most important factor limiting the growth of plants in acid soils, whereas current treatments are unfeasible. For this reason, alternatives are sought for, among which homeopathic treatment. Aims: this study aimed at evaluating the influence of homeopathic preparations Alumina 6cH, Alumina 12cH, Calcarea carbonica 6cH and Calcarea carbonica 12cH on the germination and vigor of lettuce seeds subjected to toxic levels of aluminum in paper-solution. At the same time, it was sought to develop a new procedure to apply homeopathic preparations in plants (pelleting). Methods: the statistical design was entirely randomized (CRD) with 6 treatments and 4 repetitions. Treatments included: 1) pelleted seeds/talc + Alum 6 cH; 2) pelleted seeds/talc + Alum 12cH; 3) pelleted seed/talc + Calc 6cH; 4) pelleted seeds/talc + Calc 12cH; 5) pelleted seeds/talc + distilled water; 6) non pelleted seeds (control). Variables evaluated were: germination percentage (GP), germination speed index (GSI) and radicle length (RL). Results: there was significant difference in GSI and RL – variables that reflect the vigor of seeds - between the samples treated with homeopathic preparations and the controls Conclusions: homeopathic preparations Alumina 6cH and 12cH and Calcarea carbonica 6cH and 12cH had significant effect on the vigor of lettuce seeds subjected to stress conditions.

Author Biographies

Filipe Pereira Giardini Bonfim, Universidade Federal de Viçosa


Rosana Gonçalves Rodrigues das Dores, Universidade Federal de Ouro Preto

Farmacéutica. Doutora em Fitotecnia (UFV). Laboratório de Plantas Medicinais e Fitoterápicos (LABMEDFITO), Centro de Saúde. Universidade Federal de Ouro Preto. Campus Universitário. Ouro Preto, MG. CEP: 35.400-000.

Ernane Ronie Martins, Universidade Federal de Minas Gerais

Professor titular da Universidade Federal de Minas Gerais. Instituto de Ciéncias Agrárias. Caixa Postal 135, Bairro Universitário, Montes Claros, MG. Brasil. CEP 39404-006.

Vicente Wagner Dias Casali, Universidade Federal de Viçosa

Professor titular do Departamento de Fitotecnia da Universidade Federal de Viçosa. Av. PH. Rolfs, s/n. Campus Universitário. Viçosa. MG. Brasil. CEP: 36.571-000






Plant and Microorganism Research

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