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Sound is known to directly affect biological systems, including those involved in seed germination and initial plant development. Its effect of accelerating seed germination has been demonstrated in various studies, with good results also being seen for percentage germination. Sound also has positive effects on seedling development, stimulating root and shoot elongation, which may be related to an increase in the levels of growth-promoting phytohormones and increased mitotic division. In seedlings, the influence of sound has been seen to contribute to significant increases in the level of polyamines, which, compared to the controls, regulate plant development and increase oxygen (O2) uptake. Sound waves can also be used together with the technique of micropropagation or tissue culture, both contributing simultaneously to an increase in organogenesis. The application of sound vibrations can therefore stimulate a series of biochemical processes in plant cells, contributing positively to their initial development.

brazilian journal of development

ONDAS SONORAS TEM EFEITO POSITIVO NA GERMINAÇÃO DE SEMENTES E PRODUÇÃO DE MUDAS DE HORTALIÇAS / SOUND WAVES HAVE A POSITIVE EFFECT ON SEED GERMINATION AND SEEDLING PRODUCTION IN VEGETABLES