NDLI: GERMINAÇÃO DE SEMENTES EM FUNÇÃO DO TRATAMENTO PRÉ-GERMINATIVO DE Chamaecrista

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GERMINAÇÃO DE SEMENTES EM FUNÇÃO DO TRATAMENTO PRÉ-GERMINATIVO DE Chamaecrista

Content Provider	Semantic Scholar
Author	Araújo, José Eduardo Vargas Lopes Nery, Marcela Carlota Filho, Carlos Victor Mendonça Pires, Raquel Maria Oliveira Nery, Fernanda Carlota Fialho, C. M. T.
Copyright Year	2017
Abstract	Chamaecrista Moench pertence a familia Leguminosae, subfamilia Caesalpinioideae. Diante da escassez de informacoes sobre os mecanismos de germinacao das especies, objetivou-se com esse trabalho avaliar a eficiencia de tratamentos pre-germinativos para superacao de dormencia de sementes de Chamaecrista debilis . Considerando-se as caracteristicas aparentes das sementes em relacao a espessura do tegumento e sua dureza, foi efetuado teste de germinacao com 12 tratamentos: testemunha- sementes intactas, escarificacao mecânica com lixa d’agua n. 80, imersao em agua a 100 o C por 5, 10, 15, 30 e 60 segundos e imersao em acido sulfurico concentrado por 5, 10, 15, 30 e 60 segundos . Foram avaliadas as porcentagens de germinacao das sementes e o indice de velocidade de germinacao, alem do teor de agua das sementes de Chamaecrista debilis . Utilizou-se o delineamento inteiramente casualizado com quatro repeticoes, e as medias foram comparadas pelo teste de Scott-Knott, a 5% de probabilidade. As sementes de Chamaecrista debilis apresentaram grau de umidade de 11,71%. Os tratamentos com agua a 100oC por 5, 10 e 15 segundos e acido sulfurico por 15 segundos foram os mais eficientes em promover a germinacao, indicando que a dormencia nessa especie tambem deve-se a impermeabilidade do tegumento.
File Format	PDF HTM / HTML
DOI	10.28998/rca.v15i1.2363
Alternate Webpage(s)	http://www.seer.ufal.br/index.php/revistacienciaagricola/article/download/2363/2637
Alternate Webpage(s)	https://doi.org/10.28998/rca.v15i1.2363
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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