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EC number: 931-125-7
CAS number: -
85% of the
control seeds produced healthy seedlings exhibiting normal growth
throughout the test.
EC50 for growth was determined as 4 g/kg, LC50 for emergence was 5 g/kg
and NOEC growth was stated as 0.5 g/kg.
% weight per plant compared to control (mean 94.9 mg):
(mean 87.4 mg)
(mean 69.1 mg)
(mean 54.1 mg)
% emergence compared to control (mean 85% emerged seeds):
(mean 85% emerged seeds)
At higher concentrations (15 g/kg), phytotoxic effects could be
observed. Some of the seedlings showed a little emergence, but most of
them could not unfurl even the cotyledon. If initial germination (until
unfurling of the cotyledon) occurred completely, effect on growth seems
to be a function of time only. Seeds in the control emerged
significantly earlier than in treatments.
However, the effects seem to be due to the water availability within the
soil. The soil with the test substance incorporated was very dense, i.e.
the resulting mixture hardens strongly so that the seeds are not able to
penetrate the soil. So the phyotoxic effects seem to depend on the
physical properties of the test substance. At concentrations of 1.5 g/kg
and below, no phytotoxic effects could be determined.
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