Saturday, May 21, 2016

Grafting Progress Report. Plums, kiwis, figs, ginkgo, persimmons. 5.21.16

Male fuzzy kiwi on fuzzy kiwi female.  Graft at ~ 2 months.  5.20.16

Chocolate persimmon on Saijo.  Graft about 6 weeks.  5.20.16
 First graft follow up today for the less typical  - for me - grafts.  All were whip-and-tongue.

The kiwi grafts were quite delicate.  The scion wood is hollow with a pithy center.  It oozes a slimy sap that reminds me of the fruit juice itself.  I have two kiwis, one is the big fuzzy type, and one is the grape-size hardy type.  From my reading, both will probably need a male pollinizer, something some of the nurseries don't tell you.  The scion were from the Home Orchard Society propagation / scion fair.

The fuzzy kiwi graft is looking good.  The growth appears to be past the stage of obtaining nutrients and must have a vascular connection now to the understock.  I usually unwrap scion at about 6 inches or 1 foot of growth, so leaving the graft wrapped.

The hardy kiwi is further behind.  I had trouble determining which end is up and wondered if I got it upside down.  If so, I expect it to rejecct the graft.  Just a little growth so far.

I stored persimmon and kiwi scion in the refrigerator until the understock plants were well leafed out.  I understand that works better for these, less easy, plants for grafting.  Less easy compared to apples and pears, anyway.  I cut the Chocolate Persimmon stick into two scions.  After grafting - all of these are whip-and-tongue - I wrapped the scions completely in grafting tape and overwrapped in parafilm, then covered with aluminum foil to protect from the sun.  After about 2 weeks, I removed the foil on a clouded rainy day.  One graft looks dead and one looks like it's starting to grow.  I cut the lower growth from the stem today, to reduce nutrient competition.
Hardy kiwi male on Ken's Red hardy kiwi.  Graft about 2 months.  5.20.16

My Dad's male ginkgo on seedling.  5.20.16
 The ginkgo scions looked good for a little while, then seemed to die back.  This one has started a little growth again.  I cut back the major growth on the understock, but leaft a few leaves at each point.  I don't know if it will grow and take over.  Intent is to keep enough understock growth to keep it alive, and if the scion is viable maybe it will take over later this year or next year.

The figs were from my old Petite negri fig tree in Vancouver.  I did 3 whip-and-tongue grafts onto the extra Dominic fig tree, which has several stems coming from soil level.  These were scion that I had refrigerated for a few months, well wrapped.  Like kiwi, the scion has a soft pith and is very fragile.  Petite negri establishes slowly from cuttings - for me - and the first tree I started from this variety died 2 winters ago.  No harm trying a more vigorous rootstock.   Of the 3 grafts, one appears to be leaving dormancy.  For cuttings, this is still much to small bud growth to say if roots have started, so same for graft take.  However, these have been at ambient temperature for a couple of months, and I think if they are not deriving nutrients from the understock, they will not swell at all.  We'll see.

The Red Washington (European) Plum - I guess, a NOID - scions looked near dead, but both have taken and grown.  These were also from the Home Orchard Society scion fair.  I added them for the pollination effect,  but in case they are good plums, I should prune back more of the Stanley Plum branches to allow them to grow larger.

I don't have a good macro lens and some of these are small, so some are a bit blurry.

Not pictured, one of the ornamental cherries that I grafted onto wild - likely sweet - cherry rootstock did not take, but the other did.  The other two ginkgos look like they did not take.

Red "Washington Plum" on Stanley.  About 2 months.  5.20.16
Petite negri fig graft at about 2 months.  5.20.16

1 comment:

  1. I've no idea what a kiwi plant looks like, wonderful graft work as usual, thanks for sharing.