INVESTIGADORES
BENTIVEGNA Diego Javier
artículos
Título:
Cutleaf teasel (Dipsacus laciniatus): Seed Development and Persistence
Autor/es:
BENTIVEGNA D. J.; SMEDA R.J.
Revista:
Invasive Plant Science and Management
Editorial:
Weed Science Society of America
Referencias:
Lugar: Lawrence, kansas City; Año: 2011 vol. 4 p. 31 - 37
ISSN:
1939-7291
Resumen:
Cutleaf teasel (Dipsacus laciniatus) is an exotic, invasive plant that infests roadsides and other minimally disturbed areas. Plants in established stands appear to be a mixture of rapidly growing rosettes and rosettes with developing reproductive structures. Research that is focused on seed characteristics and their contribution to the spread of plants may be a key to precluding spread of cutleaf teasel in the field. Field studies were conducted to determine the viability and germinability of seeds after flowering, seedling emergence patterns and seed persistence. Flowering (60% of anthesis) was observed under natural conditions July 24, 2004, and July 16, 2005. Seeds harvested 12 d after flowering exhibited 43% viability and 2.5% germination. Seed weight and viability were greatest 30 d after flowering, but germination was