I have recently seen some posting about interstem pears and apple and thought this might be of interest to some seeing that It matured fruit this year. The tree appears to be anchored well but I will wait another year to remove the stakes.
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This is the graft union that is a little different.
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Bill,
I do use improved Kieffer as an interstem for callery at times but rarely. I did about 20-30 interstem grafts this year for quinces and pears such as Worden, red Anjou, doctor desportes, etc. . Recently I’ve discovered one of my in named pears is highly compatible with others and makes a nice fruit even if the grafts fail. I like the idea of your unnamed pear interstems. Sounds like it is highly compatible!
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Either way you end up with a good pear. When I first started adding interstems I wasn’t smart enough to know about compatibility, I just got lucky. I was only looking for a well anchored tree, small tree, and early bearing. All three characteristics appear to be in this combination although it will take longer to be sure. Just got lucky, Bill
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I’ve used OHxF 513 as an interstem between callery and fruiting selections - don’t know if it’s providing any dwarfing at all - 513 as rootstock still makes a tree 65-75% of standard … but it is FB resistant, and compatible with both Euro & Asian pears without the issue of pear decline with the Asians.
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How is this crazy tree doing?
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It appears to be doing well with a few small side limbs starting. It looks healthy and the Bud9 dwarf interstem looks like it is doing it’s job. I have another Harrow Sweet that has a unknown dwarf pear interstem and it is growing a little faster. Fun project to observe as they grow.
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