Propagação sexuada do pequizeiro (Caryocar brasiliense Camb.) estimulada por ácido giberélico
Carregando...
Data
2008-06
Título da Revista
ISSN da Revista
Título de Volume
Editor
João Batista Duarte
Resumo
The species Caryocar brasiliense, known as 'pequi',
presents low percentage and low average time for plantule
emergence. In order to solve this problem, this study aimed to
evaluate the levels of gibberellic acid (GA3) on seed emergence of
C. brasiliense, without endocarp. Ripe fruits were collected and
stored for 27 days in plastic bags. Subsequently, their skin,
mesocarp, and thorns were removed. After seven days, the
almond was extracted from the endocarp. The treatments were:
distilled water, and GA3 at 75 mg L-1, 150 mg L-1,300 mg L-1, and
600 mg L-1, soaked for 24 hours. Twenty-six seeds per plot were
arranged in a completely randomized design, with five treatments
and five replications. The percentage and average time for plantule
emergence, height, diameter, and fresh and dry root and shoot
mass of pequi plantules were evaluated. The data were analyzed
by variance analysis and linear regression. The gibberellic acid, at
the conditions and concentrations evaluated, influenced
significantly the percentage and average time for the pequi plantule
emergence. Forty days after sowing, the emergence average was
24%. The use of gibberellic acid (GA3) in seeds without endocarp,
at the estimated concentration of 345 mg L-1, has provided the
highest emergence percentage, as related to the other evaluated
treatments.
Descrição
Palavras-chave
Pequi, Hôrmonio vegetal, Emergência, Plant hormone, Emergence
Citação
BERNARDES, Tatiely Gomes; NAVES, Ronaldo Veloso; REZENDE, Cláudia Fabiana Alves; BORGES, Jácomo Divino; CHAVES, Lázaro José. Propagação sexuada do pequizeiro (Caryocar brasiliense Camb.) estimulada por ácido giberélico. Pesquisa Agropecuária Tropical, Goiânia, v. 38, n. 2, p. 71-77, abr./jun. 2008. Disponível em: <https://www.revistas.ufg.br/pat/article/view/4154/3650>.