[pbs] permanent clones??

Rodger Whitlock totototo at pacificcoast.net
Tue Jul 6 16:15:49 EDT 2004


On  6 Jul 04 at 9:35, zonneveld wrote:

> ...most clones of vegetatively propagated plants have to be
> replaced by new ones due to loss of vigour.

But isn't that loss of vigor usually due to the slow buildup of the 
viral titer?

I am aware of a number of old clonal cultivars that were very weak 
and very tricky to keep going but which recovered vigor when put 
through tissue culture to eradicate viruses.

-- 
Rodger Whitlock
Victoria, British Columbia, Canada
"To co-work is human,
to cow-ork, bovine."


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