A. griseum? Stratification requirements

davekate davekate at open.org
Mon Feb 21 15:56:04 EST 2000


Yes! Thank you John. I thought it might be in Dirr's but have none. This
helps me a lot. I'll let you know if I find any seed germinated within their
hard little tombs as I dissect them. I appreciate your work on my question!
David
John Dusek <Schnips at webtv.net> wrote in message
news:7104-38B0B185-91 at storefull-232.iap.bryant.webtv.net...
> Hi agian, since my last post to you I was thinking alittle and decided
> to look up your question. My thoughts about the stratifacation
> requirements were wrong. According to Dr. Michael Dirr in his book "The
> Manual Of Woody Landscape Plants" it is VERY difficult to germinate this
> seed.. First only 1 to 8% of the seeds are usually viable. Second as you
> mentioned in your reply the seed coat is very very hard. Dirr says the
> following....."seeds will germinate after 90 days stratification at 41F
> in moist peat, however, the fruit wall is so tough the root radical
> cannot penetrate and will spiral around within the srtucture;I have
> removed the embryos after stratification and the majority continued to
> grow".  He then goes on to say that cutting production  is a much better
> methood of propagation.
>
> I hope this helps....Let me Know.....
>
> Good Luck,
> John
>






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