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Population studies on Pennyroyal Mint ( Mentha pulegium L.) I. Germination and seedling establishment
Author(s) -
PANETTA F. D.
Publication year - 1985
Publication title -
weed research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.693
H-Index - 74
eISSN - 1365-3180
pISSN - 0043-1737
DOI - 10.1111/j.1365-3180.1985.tb00648.x
Subject(s) - seedling , germination , pasture , biology , population , horticulture , agronomy , botany , demography , sociology
Summary Very few seeds of M. pulegium germinated in the absence of light, but relatively high levels of germination were attained over a wide range of temperatures when seeds were exposed to light. This response to temperature was reflected in patterns of seedling appearance in several field sites, where new plants were recorded between autumn and early summer. Initial mortality rates differed between cohorts which occurred within and outside a pasture community, and were higher in the presence of pasture species. Seedlings survived prolonged periods of inundation and new plants were detected under water to a depth of 10 cm. The capacity for growth under water is considered to be an important aspect of the ability of M. pulegium to invade and persist in sites which are flooded seasonally.