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Date: | Thu, 5 Feb 2015 10:01:41 -0500 |
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Thanks for the info on Knotweed, I never realized until this year that there weren't any seeds being produced in this locale. Once I did see a seedling in my garden, far from any other plants, but I weeded it out immediately. Didn't know it was so unique!
> In Japan, reproduction in Fallopia japonica is characterized by high seed production and low seedling survival, but plants have a very high probability of survival once established. However, in the U.S., U.K, and Europe, seeds do not appear to be a significant mode of reproduction.
> In a study of the reproductive ecology of Fallopia japonica populations in New Jersey, Locandro (1973) found viable pollen, but noted that fertile males were rare. Seedling germination was observed in the presence of males, but no seedling survival was recorded during five years of observation.
> The primary mode of reproduction in the U.S., U.K. and Europe is through extensive rhizomes which can reach 15-20 meters in length.
http://wiki.bugwood.org/Fallopia_japonica
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