Propagação vegetativa de samambaia gigante - Angiopteris evecta (G. Forst.) Hoffm

Abstract

Propagação vegetativa de samambaia gigante -Angiopteris evecta (G. Forst.) Hoffm.(1) RESUMO A samambaia gigante (Angiopteris evecta (G. Forst.) Hoffm.) pode ser propagada por meio das aurículas que ocorrem na base da fronde, que devem ser retiradas das frondes mais velhas e plantadas em recipientes contendo substrato leve, mantidas permanentemente irrigadas, em locais sombreados. Após aproximadamente oito meses, os primeiros brotos começam a emergir. Com um ano e meio a dois da muda formada, ela pode ser plantada em local definitivo. Palavras chave: Marattiaceae, pteridófitas, samambaia, aurícula, propagação. ABSTRACT Vegetative propagation of giant fern -Angiopteris evecta (G. Forst.) Hoffm.The giant fern (Angiopteris evecta (G. Forst.) Hoffm.) can be propagated through the auricles that occur at the base of the frond, they should be removed from the older fronds and planted in containers with lightweight substrate and kept permanently irrigated on shady sites. After about eight months, the first buds begin to emerge. After a year and a half to two the seedling can be planted in permanent location.

Stipular buds in a natural population of Danaea nodosa (Marattiaceae) in gallery forest from Brazilian Savanna

“…These stipules are located at the base of each petiole and provide protection during the initial development of the leaves and persist adhered to the rhizome even after the remainder of the leaf has senescenced and abscised. These structures show primary meristematic tissue that may develop into stipular buds (Matthes et al 2011). The stipular buds may originate new individuals as they form roots and sequentially start to produce leaves in the apical region of the new rhizome.…”

“…Huang et al (2010) found the emergence of stipular buds in five species of Marattiaceae native to Taiwan, one month after being subjected to different treatments in the laboratory. Matthes et al (2011) performed experiments demonstrating that stipules of Angiopteris evecta (G.Forst.) Hoffm.. when placed in contact with soil, developed new leaves around six months after the start of culture.…”