[NAFEX] RE: topworking actinidia to males?
sbrandle at css.tayloru.edu
Fri Dec 17 12:48:49 EST 2004
Thanks for the replies. For those who asked, yes, my kiwis are actinidia
arguta. To summarize, nobody said it wouldn't work, but there were
caveats. I was cautioned about
* graft loss at the graft union in cases of extreme cold. (Kiwibob
thought that union death from cold was a fairly high risk in zone 5. I'm
going to try anyway because I think that we are in a warmer zone 5
microclimate, but I've been warned!)
* problems about figuring out which was which (male/female) when
pruning. That makes sense. If it's all mixed up way above, how on earth
would you know which was which. But I'm guessing that I won't
accidentally prune all the male canes. Plus, I could paint near the
graft points to help track the male canes on any high grafts. It
wouldn't hurt to also mark the low male grafts.
* not to graft until all chances of frost are over. We do have
fluctuating late winter/spring temps that often trick the first leaves
into coming out, then zaps them. Tender arguta is quite tender.
(Fortunately, the female flower blossoms have shown up substantially
later and were profuse.)
* and although it wasn't stated explicitly, arguta weeps heavily when
cut in late winter/early spring. This probably causes serious problems
for callousing. I'll have to do a test cut or two when I think it is
safe, then wait a day or two to make sure that I'm grafting after the
sap flow has calmed down.
I think that I will take a shot at grafting male vines onto female
plants, but will pay attention to the advice about ensuring that I can
track that male/female canes separately.
Lon's idea of grafting low and then layering the males so that they have
their own roots + the female's help sounds good. I may also try
Kiwibob's suggestion of grafting high.
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