Abstract
Factors influencing germination and seed survival of
Ligustrum lucidum W.T.Ait. and
L. sinense Lour., two serious environmental weeds in
subcoastal eastern Australia, were investigated in a series of experiments
conducted under natural rainfall regimes (field experiments) and under
irrigation in a growth tunnel. In the field experiments, no seedlings of
either species were observed where seeds and intact fruits had been
surface-sown; seedlings originated only from shallowly buried seeds and
fruits, with generally higher levels of emergence from seeds. Where soil
moisture levels were maintained at or above field capacity, however, moderate
to high levels of germination occurred from surface-sown seeds and fruits of
both species. Total seedling emergence varied considerably between years for
each moisture regime. Seeds of both species were short-lived, with most
(>95%) not persisting for 12 months in any case.
Subject
Plant Science,Ecology, Evolution, Behavior and Systematics
Cited by
43 articles.
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