Is antonvka rootstock a good thing, long term?
Tom, two of my anties are dying that have been in the ground for about 27 years. NW Greening and Red Baron are about done. It may not be a rootstock problem, but old sunscauld or maybe that borer. Dolgo still looks healthy on antie. This is on the sandy loam at Buckman.
Sandy soil in Cass County is a different thing. Many years ago, our county agent was grafting and growing apples by Walker. He told my uncle that the lifespan of trees seems to be shorter on the light soils. I'm not sure what rootstock he was talking about.
This would be a good question if anyone goes to the apple meeting at Staples on August 21.It's in the afternoon at Central Lakes College and costs $5. They are growing some apples on light soil, but none of the trees appear to be very old. An experienced person in the crowd might provide better information.
Could you also pick the brain of your local orchard?
Just a few words about the dolgo. It had no pruning and the red baron and NWG also did not until the last five years. However the dolgo has limbs shading the trunk on the southwest side. All three trees are in a somewhat exposed location. The red baron and NWG show damage from sunscauld and dying starts on the SW side.
Maybe the dolgo is just tougher, or maybe it just has enough limbs to protect the SW side from sunscauld.
There are 5 chestnut crabs on unknown rootstock that are doing pretty well and have been in the ground for 25 years or so.. One of these trees is in cass County light soils. Unknown rootstock, but I would have to assume it is from Bailey's. The trees are slightly smaller than the anties. One of the trees is showing some rootsuckers that I have planted and will graft too in the next few years. I got the feeling that this tree is a different rootstock than the other 4 as I purchased it form a different source.
Bailey is a supplier to many of the nurseries in Minnesota.
Tom- those dolgo seedlings that we bought together a few years ago are just about ready to bare, if I don't cut them all of for topworking! They must be 10-12 feet tall.