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  • From: Drevniok <colleendaly@videotron.ca>
  • To: North American Fruit Explorers <nafex@lists.ibiblio.org>
  • Subject: Re: [NAFEX] grape callusing
  • Date: Sat, 16 Feb 2008 12:22:54 -0500


When I prune my grapes I keep some cuttings - perhaps 12-16 inches long. I cut one end on an angle, deep into into rooting powder (for hardwood cuttings), then
make a hole in the soil that I have put in a gallon pot and stick about 6 inches below soil level. I keep the soil moist and I get about 60 -75% success rate (I put
about 6 - 8 cutting per pot). I prune in March/April and prepare the cuttings soon after; if it is still freezing hard I bring in the potted cuttings and put them out later.

Peter Drevniok,
Gatineau, Quebec zone 5


Ginda Fisher wrote:
Mark, every spring when I prune my canadice grape I put a few one foot long lengths of vine into two small vases on my kitchen windowsill. I've done this for about 5 years now, and I think 100% of them have sprouted leaves above the waterline, and grown callus and then roots below the waterline.
Maybe canadice is just especially easy to root. I've never tried any other grape. But that's my suggestion - put it in a vase and wait for roots.
___
Ginda

eastern mass, zone 6
...... Original Message .......
On Fri, 15 Feb 2008 08:23:18 -0700 "Mark and Alisha Fehringer" <markandalishafehringer@peetzplace.com> wrote:
Hello,
I am trying to callus a small group of grape cuttings as a 'practice run'
for a larger group I will be doing this spring. The cuttings were well hydrated. I dipped them in rooting powder and planted them in potting soil in a 1 gallon plastic pot and used a heat lamp to maintain a soil temperature of 80-85 degrees. After several weeks there wasn't any callus. I put them back in the heat for another week or two, and still no callus, but green buds are pushing out. Can the cuttings essentially rot before they callus when in soil? Would it be better to use something more sterile like perlite? My intention was to let them callus and root directly in the pots, and I could plant them in their permanent location this spring. What would happen if the ends of the cuttings were clipped a little shorter to expose fresh cambium and start over?
Mark
Northeast Colorado ____________________________________
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