Two plants from the dozen or so got red necked cane borer damage. That’s a much lower rate than Tayberry which really suffers from them here and overall seems better than my normal raspberries so I’m hopeful they have some resistance.
Leaf spot is completely absent except for on one plant, which is great because my raspberries and even most of my blackberries get leaf spot pretty bad.
I’ve not seen and spur blight but it’s too early to tell with that one. However, Mysore itself is basically immune so my guess is these hybrids will handle it well.
Japanese beetles and grasshoppers like the hybrids, in giving because they’re quite lush and always have soft new growth. The deer however basically completely avoid them which is awesome.
So far looking good, just need to get fertility restored and start working on fruit characteristics.
Hi, I hope you can get a backcross to Mysore and get good fertility. My hybrids are just coming out of Winter and should bloom in the next few weeks. If any of them are male fertile, I will do a post.
So far I know that none of mine are male self fertile, of the ones that have bloomed anyway. But I haven’t quite ruled out them being male fertile when cross pollinated. My Mysore plants look to be self incompatible, so it’s possible that what little fertility I might have with that pollen isn’t being indicated because it’s failing anyway due to self incompatibility.
I really wish Mysore produced more pollen on bigger flowers, would make these backcrosses so much easier.
I do have Rubus cockburnianus as a backup. I don’t know yet if it has flowers that are easier to work with but at least it should be winter hardy and so will have more reliable floricane blooms. Need to get it weeded and mulched though, it’s not looking very happy.
Didn’t help that the only variety I can find available on the US is a charteusse one.
I think you have to try everything you can. To the best of my knowledge no one has successfully hybridized Mysore and Red or Black raspberry and had a self fertile plant.
Yep. I’m kinda scared of what the growth will look like next year on the floricanes.
Bababerry is a pretty tall growing raspberry, so that’s definitely part of it as well. I am morbidly curious what a Mysore x Dormanred is going to be like, Dormanred is pricing to be an enthusiastic grower as well now that it’s more established.
The fruit from my 6x Blackberry/Raspberry Hybrid crossed with Raspberry, is nearly ripe. I only ended up with 2 fruit from about 6 crosses. This may be due to cold weather or lack of enough raspberry pollen.
“It has been repeatedly stated in public prints that I entertained the idea when I planted those seeds of a cross between the raspberry and blackberry. I am sorry to disturb one of the supposed truths of history, but candor compels me to say that such is not the case. I did not even deem such a cross possible, and did not know what I had done until May, 1883, when the plant first fruited.”
-J. H. Logan, Oregon Horticultural Society, undated but possibly early 1920s
So given that Logan not only unintentionally crossed R.ursinus ‘Aughinbaugh’ x R. ideaus ‘Red Antwerp’ and very much lucked out with unreduced pollen grains which allowed the cross to even be fertile in the first place, how did Burbank pull off Phenomenal (Aughinbaugh x Cuthbert)? Sheer brute force of just growing 1000s of plants until he also lucked out? The serendipity factor of Logan seems off the charts but given that Burbank was able to replicate it with Phenomenal makes me more curious. I wonder how much things like Rubus Breeding - #338 by BerryAllen were involved…
I think Burbank did grow out hundreds, if not thousands of seedlings from crosses he did. You only need one unreduced pollen grain to form a fertile hybrid. Sudden heat, sudden cold, radiation, can all interupt meosis. I prefer to use colchicine, so I know I have a much better chance of getting fertile hybrids. I only needed to grow out 6 seedlings to get a fertile hybrid, not 600!.
