https://periodicos.cerradopub.com.br/cerrado/issue/feed 2026-01-01T00:00:00-03:00 Matheus Vinicius Abadia Ventura matheus.ventura@braseducacional.com.br Open Journal Systems <p><strong>Cerrado: Agricultural and Biological Research - ISSN 2966-0092</strong> (the abbreviated title is <em>Cerrado: Agr. and Biol. Res.</em>) is a multidisciplinary open access scientific journal published by the <a title="Cerrado Publishing" href="https://periodicos.cerradopub.com.br/cerrado/about/contact">Cerrado Publishing</a>, and is intended for the dissemination of original, unpublished technical-scientific works and scientific research in the areas of agrarian and biological sciences.</p> <p><strong>Open Access</strong> is free for readers, authors and their institutions.</p> <p data-start="597" data-end="696">This journal does <strong data-start="638" data-end="695">not charge authors any submission or publication fees</strong>.</p> https://periodicos.cerradopub.com.br/cerrado/article/view/817 2025-11-27T13:56:46-03:00 Guilherme Rafael do Prado guilhermerafael.14rv@gmail.com Douglas Augusto Gaspio guilhermerafael.14rv@gmail.com Matheus Vinícius Abadia Ventura guilhermerafael.14rv@gmail.com Antonio Carlos Pereira de Menezes Filho guilhermerafael.14rv@gmail.com

<p>Different light spectra, such as red, yellow, green, and blue, can exert distinct effects on germination rates and on the morphophysiological traits of seedlings and plants at various developmental stages. In contrast, energy sources such as UV-A radiation often produce adverse and potentially harmful effects. In this study, we evaluated the influence of different light spectra and UV-A radiation on the <em>in vitro</em> germination and early development of tomato cv. Cherry seedlings (<em>Solanum pimpinellifolium</em>), including shoot length, root length, and fresh and dry biomass. Our results showed that germination rates did not differ among the evaluated light spectra or darkness; however, UV-A radiation proved to be extremely detrimental. Darkness promoted the greatest shoot elongation, while red and green spectra yielded the highest root lengths. The green spectrum resulted in the greatest fresh biomass accumulation, whereas the yellow, green, and dark treatments produced the highest dry biomass. Consistently, UV-A radiation was the most harmful factor across all evaluated parameters. Overall, the appropriate selection of light spectra can enhance germination and morphophysiological performance in tomato cv. Cherry seedlings grown <em>in vitro</em>, whereas exposure to UV-A radiation should be strictly avoided during germination and early development.</p>

2026-01-01T00:00:00-03:00 Copyright (c) 2026 Guilherme Rafael do Prado, Douglas Augusto Gaspio, Matheus Vinícius Abadia Ventura, Antonio Carlos Pereira de Menezes Filho