Can the coloring of internal tissues of amburana-de-cheiro seeds be an indicative of vigor?
2022
Guariz, Hugo Roldi | Shimizu, Gabriel Danilo | Picoli, Marcelo Henrique Savoldi | Paula, Jean Carlo Baudraz de | Marubayashi, Rodrigo Yudi Palhaci | Ribeiro Júnior, Walter Aparecido
Portugués. Amburana cearensis (Allemão) A. C. Sm. is a forest species with multiple uses, whether landscape, timber, or medicinal, however, with the advance of the destruction of the Caatinga and the predatory exploitation of this species, it is necessary to guarantee greater production of seedlings in quality and quantity, in order to avoid the exclusion of seed lots with low germination content, thus, we aimed to analyze the emergence of different groups of scarified seeds with light and dark colored cotyledons. The seeds came from the region of Guanambi/BA, and were sown in sand, with daily irrigation. The design used was completely randomized, with 4 replications of 20 seeds each, distributed in three treatments, being: intact seeds, scarified seeds with light cotyledons, and scarified seeds with dark cotyledons. At the end of the test, using the daily data of the number of emerged seeds, the following variables were calculated: percentage of emergence, emergence speed index (ESI), average emergence time, and average speed. Seeds with light cotyledons were viable for seedling production, with 86% emergence, in addition to presenting the highest ESI value, on the other hand, seeds with dark cotyledons had 100% losses. A. cearensis seeds present higher germination potential when submitted to the mechanical scarification process. In addition, analysis by means of the coloring of the internal tissues of the seed is an effective method for indicating the vigor of the seeds, generating greater efficiency in the yield of seed lots.
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