Re: California poppies & root rot
- Subject: Re: California poppies & root rot
- From: G* B*
- Date: Sat, 25 May 2002 12:39:08 +0200
>To complicate things, if the soil is too wet, then the plant can have
>problems from lack of oxygen. I have heard debates between plant
>physiologists (who think lack of oxygen for the roots is causing the
>symptoms) and plant pathologists (who think that pathogens like
Phytophthora
>are causing the symptoms). Probably both factors are involved.
Could be both. I remember reading a doctorial dissertation on plant phenols
once. Some of these form the plant ' antibodies ' & fight off plant disease.
The thesis was that they must be oxidised to be fully operative.
Anaerobic conditions around the roots don't allow the phenolic oxidation
which then allows the pathogenic attack.
Regards
Glenn Breayley. Ragnarok & Valhalla Research.
POBox 26158, Hout Bay, 7872, Capetown, South Africa
Ph/Fax SA 021 7904253 E-mail valhalla@iafrica.com
Wholesale nurseryman & Tillandsia specialist wholesale & retail grower.
