Pear scions from USDA GRIN Corvalis

No, no filter for fireblight for pear. I sorted for pears that ripened in October. Then read the descriptions to see if fireblight was mentioned or if it was highly susceptible to the other pear diseases that they do track like scab.
 
I am finding I am having trouble getting down to a manageable number. I am looking for late varieties with minimal disease problems. Plus a few earlier eating pears. Right now I have it cut down to this list of 25. But ordering 25 means I'd want to graft at least 2 of each. I'd be ordering at least 50 rootstocks and thinking why not 100? Then build another nursery bed in the backyard. A bunch of nights down in the basement grafting. Ugh. What a sickness this grafting thing is. The attached PDF has the weblinks to the GRIN listings.
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I went through a few hundred pear listings to get to my list. I searched for terms like fireblight and pyrus. I also sorted for every pear that ripened after late September using the pear descriptor full ripe. That is the calendar day they recorded so an entry of 273 means October 1. Many varieties only have a ripening date measured for one year and it may be subjective or innaccurate. Some varieties have full ripe dates for different years that are more than a month apart. Beyond ripening date, I look at the other disease ratings and read the descriptions and sometimes do a google search to see if I can find more information on that variety. In the end, there are way more varieties than I can handle so I have to start looking for a reason to get them off my list. I like having a variety of genetics and not just all eating pears. I went back through the full ripe listings earlier this week and added a few and took out a few. Johantorp was one I came across that was compared to Goldrush as a late ripening, late hanger. It might be nice to put a few of them in a spot to hunt in the after Christmas PA flintlock season.

I talked myself into only ordering half for next spring and another group in 2019. I tend to get too busy in the spring and I was worried about room in the nursery. I think I'll have plenty of nursery space as most of my current trees can be moved out this fall or next spring. Grafting and caring for fewer trees would be nice since I will be transplanting apple trees, growing apple seedlings, grafting some persimmons, and I never have much time for chainsaw work.
 
Got my GRIN scionwood today. 15 varieties from them. Got some more coming from some nice folks. I got 50 OHxF87 and 15 Pyrus betulaefolia seedlings on order for rootstock. I also ordered 10 seedling saskatoon and aronia to try as dwarfing rootstock for pear. Not sure if those will be big enough to benchgraft with but something to play with in the backyard.

Here is my order from the USDA. I selected based on ripening times given at Corvalis Oregon for a particular year (plus a few good eaters). I don't trust those dates are right but it is a starting point. Johantorp has been compared to Goldrush apple and is supposed to ripen late and hang so I am excited about it.
Corvallis Ripe Date Accession ID Pear Variety
1-Nov PI 105514 Homony
26-Oct PI 285530 Johantorp
26-Oct PI 483365 Gelbmostler
26-Oct PI 506367 Yokogoshi
26-Oct PI 541864 P. nivalis
25-Oct PI 541712 Good Christian
18-Oct PI 143979 Olia
11-Oct PI 541314 Mooers
11-Oct PI 541448 Warren
11-Oct PI 541710 Eureka
11-Oct PI 541791 P. betulaefolia-1 x P-79 seedling
5-Oct PI 541787 Old Home x P. betulifolia-1
4-Oct PI 541299 Magness
12-Sep PI 541320 Honeysweet
Aug/Sep PI 657922 Blake's Pride

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Interesting to google search some of those pears and find that they're pretty obscure to most the world. Johanthorp seems to be catching the attention of a few people around here anyway. Will be cool to see the progress reports from the few of you who have them started.

My grin account says "reviewing" still.
 
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