Abstract
ABSTRACT: Information on the type of substrate suitable for germination and seedling establishment is important for the propagation of species and recovery initiatives of degraded areas. The objective of this study was to determine the most efficient substrate in the germination of Mimosa caesalpiniifolia Benth. Four treatments were used, soil land, goat/sheep manure, bovine manure and chicken bed with 4 replications in each treatment. Hot water was used to break the dormancy of the seeds. The following variables were analyzed: germination percentage, emergence speed index, shoot and root length, stake diameter, shoot and root dry mass and seed vigor. The use of water at 80o C, combined with the intrinsic characteristics of the physiological and morphological quality of the seeds may have influenced the results. Another factor is that the seedlings were evaluated during 30 days, and this species has a slow germination index. Despite the short evaluation time, this study has the potential to continue the study, the substrate (T3) presented better results despite being statistically equal. KEYWORDS: Thrush, physiological quality, vigor.
Highlights
EFEITOS DE DIFERENTES SUBSTRATOS NA GERMINAÇÃO DE Mimosa caesalpiniifolia Benth EFFECTS OF DIFFERENT SUBSTRATES ON THE GERMINATION OF Mimosa caesalpiniifolia Benth MIRANDA, Elane Ferreira de; SÁ, Leidiane Ferreira de; SILVA, Leovandes Soares da; MARTINS, Andreia da Rocha; SANTOS, Luana Martins dos INTRODUÇÃO
Information on the type of substrate suitable for germination and seedling establishment is important for the propagation of species and recovery initiatives of degraded areas
Hot water was used to break the dormancy of the seeds
Summary
Effects of different substrates on the germination of Mimosa caesalpiniifolia Benth. Elane Ferreira de Miranda(1); Leidiane Ferreira de Sá(2); Leovandes Soares da Silva(3); Andreia da Rocha Martins(4); Luana Martins dos Santos(5). Objetivou-se com a realização deste estudo determinar o substrato mais eficiente na germinação de Mimosa caesalpiniifolia Benth. Foi utilizada água quente para a quebra da dormência das sementes. Foram analisadas as seguintes variáveis: porcentagem de germinação, índice de velocidade de emergência, comprimento da parte aérea e raiz, diâmetro do coleto, massa seca da parte aérea e raiz e vigor das sementes. O uso da água a 80o C, aliado às características intrínsecas da qualidade fisiológica e morfológica das sementes possa ter influenciado nos resultados. Outro fator é que as mudas foram avaliadas durante 30 dias, sendo que esta espécie apresenta um índice lento de germinação. Apesar do pouco tempo de avaliação esse trabalho apresenta potencial para continuação do estudo, o substrato (T3) apresentou melhor resultado apesar de serem estatisticamente iguais.
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