info:ar-repo/semantics/artículo
Promotion of Immature Seed Germination in Jacaranda mimosifolia
Fecha
2005-08Autor
Miyajima, Ikuo
Kato, Adriana Elena
Hagiwara, Juan Carlos
Mata, Diego Alejandro
Facciuto, Gabriela Rosa
Soto, Maria Silvina
Escandon, Alejandro Salvio
Mori, Marcela Noemi
Kobayashi, Gustavo
Resumen
In vitro germination of immature seeds of Jacaranda mimosifolia treated with gibberellic acid (GA3) was studied. Immature seeds were collected monthly after crossings and sown on Murashige and Skoog (1962) medium with 3.0% sucrose and 0.6% agar after soaked 24 hours with 0, 10, 100, and 500 mg·L–1 GA3 solutions. Though germination was observed in the immature seeds harvested 2 months after crossing (2 MAC), the rate was quite low. When immature seeds of 3 MAC treated with 100 or 500 mg·L–1 GA3 solution were cultured, >60% germination were obtained within 2 weeks after culturing. These results indicate that immature seeds of 3 MAC treated with adequate GA3 solutions, seedlings can be obtained precociously and the period from crossing to the seedling stage was shorter than for mature seeds.