Lee/Mike- In my time wandering through Kentucky woods, black walnut trees were the only thing I saw that could alter the advance of a field of poke salat! My question? What would negative allelopathic refer to? I can see that it would be positive in this case for black walnut and negative to most anything else, but I suspect it may refer to something else entirely? -Don
> Date: Thu, 24 Sep 2009 07:50:26 -0500 > From: [email protected] > To: [email protected] > Subject: [ENTS] Re: Marion Brooks Natural Area, Elk County, PA > > > Mike: > > We had a discussion a while ago on this topic, probably before you were > on the list. Black walnut and butternut produce the allelopathic > chemical juglone, which can stunt growth or even kill certain plant > species, although I have seen raspberries and a species of coneflower > (Rudbeckia triloba, the branched coneflower), growing under black walnut > trees. > > Sugar maple and bracken fern have also been found to produce > allelopathic chemicals that reduce germination and growth of competing > plants. There are probably many other examples. > > Lee > > > > > > > _________________________________________________________________ Microsoft brings you a new way to search the web. Try Bing™ now http://www.bing.com?form=MFEHPG&publ=WLHMTAG&crea=TEXT_MFEHPG_Core_tagline_try bing_1x1 --~--~---------~--~----~------------~-------~--~----~ Eastern Native Tree Society http://www.nativetreesociety.org Send email to [email protected] Visit this group at http://groups.google.com/group/entstrees?hl=en To unsubscribe send email to [email protected] -~----------~----~----~----~------~----~------~--~---
