Antimicrobial effect of Morinda royoc L. during acclimatization of Ananas comosus ‘MD-2’ vitroplants
DOI:
https://doi.org/10.5281/zenodo.15677899Keywords:
anthraquinone, pineapple, phytopathogen, rootsAbstract
Introduction: the use of natural products from plants in modern agriculture is a worldwide trend, due to its benefits in food security. However, in the cultivation of Ananas comosus var comosus, the control of phytopathogenic diseases is carried out mainly through synthetic chemical pesticides. In this context, Morinda royoc L. is recognized for its marked bioactivity and high added value, attributed mainly to anthraquinones as major compounds in roots Objective: to determine the preventive antimicrobial effect of the hydroethanolic extract of M. royoc roots in pineapple vitroplants ‘MD-2’ in the acclimatization and nursery phase. Methods: the application of the extract was included in the disease management and control program of the crop, according to the Technical Instructions of the cultivar at Centro de Bioplantas. The extract was applied in the initial acclimatization phase of the vitroplants and subsequently with applications every 15 days. Seven treatments were designed according to different combinations of the extract and synthetic chemical fungicides. The evaluation of morpho-physiological indicators and the survival rate up to 150 experimental days was carried out. Results: three of the treatments where the extract was applied, no dead plants or plants with disease symptoms were observed, which coincided with the chemical control. Conclusion: M. royoc extract showed a preventive antimicrobial effect on vitroplants up to the nursery phase, comparable to when synthetic fungicides were used. It was demonstrated that the application of the extract until 150 days did not affect the growth and morphological development of the plants.
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