Virus transmission in Amaryllid seeds?
Tony Avent (Thu, 10 Sep 2009 18:55:13 PDT)
Alberto:
It has become common practice in the US for several of the larger
nurseries to virus index and clean all plants that they sell. This can
be done either via hot water/tissue culture or chemically. The cost is
typically between $1000 and $2500 per plant, so small nurseries often
cannot afford the cost...it all depends on the financial return that the
plant will generate. On some plants, the only difference between a
clean plant and an infected one is the lack of leaf streaks, while in
other plants, original vigor is restored. Unfortunately, many plants
easily get reinfected when grown outdoors. The current amount of virus
testing has shown that a significant number of the plants that we all
grow in our gardens are infected with at least one virus, but unless the
virus causes a significant problem such as disfigurement of vigor loss,
most folks never suspect a problem. It's only the plants that show
symptoms that cause gardeners to get upset.
Alberto Castillo wrote:
Seeds are fortunately the only common way to obtain virus free material, but there is no way to propagate clean material of the immense number of hybrids/varieties around that are infected. Sadly.
Regards
From: mikemace@att.net
To: pbs@lists.ibiblio.org
Date: Thu, 10 Sep 2009 10:56:00 -0700
Subject: [pbs] Virus transmission in Amaryllid seeds?
This discussion of possible viruses in x Amarcrinum reminded me of some
discussions we had in the past about viruses in some Amaryllis "Multiflora"
bulbs.
Was there ever a consensus on whether viruses can be transmitted through the
seeds of amaryllids that have fleshy seeds? I'm just wondering how much
risk there is when we trade them around.
Mike
San Jose, CA
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Tony Avent
Plant Delights Nursery @
Juniper Level Botanic Garden
9241 Sauls Road
Raleigh, North Carolina 27603 USA
Minimum Winter Temps 0-5 F
Maximum Summer Temps 95-105F
USDA Hardiness Zone 7b
email tony@plantdelights.com
website http://www.plantdelights.com/
phone 919 772-4794
fax 919 772-4752
"I consider every plant hardy until I have killed it myself...at least three times" - Avent