It’s been 20 years. You might have success with google scholar (scholar.google.com).
dannytoro1,
I had an A.parviflora selection(‘Trash Pile’) off of my family farm in Lee Co., AL that was extremely productive - single and double thumb-sized fruits festooned all along the length of almost every twig. I had a graft of it growing up here in KY for a number of years, until an Easter freeze in 2007 killed it back to the A.triloba rootstock; there may be a seedling of it in existence down along the creek (I did plant one there, probably 15 yrs ago). I had a friend in Flint, MI who had a graft of it growing there for years, but he passed in 2018, so I don’t know if it is still in existence on his property, which I think has been sold.
Familiy farm in AL sold to developers in 2005, and I think that there is now a fairly upscale housing development on the hillside where ‘Trash Pile’ was growing.
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Growing up in southeast Kentucky near a town called Harlan,papaws were a fall treeat to look forward to,in both going out and collecting in our favorite areas and at our local farmers market. You didn’t see them in the local stores because of the short shelf life but theh were abundant at farmers markets. Iv’e tasted numerous pawpaws,probably over 200,from different areas of the Cumberland Gap region and can tell you none had potential to be bred for firmness. The flavors varied quite a bit omongst the good ones and flavor is the trait that can be improved through breeding. The Europeans are far ahead of the US in both breeding projects and having many commercial orchards throughout the continent. We will see advances in pawpaw research and development out of Europe how I wish it should/could be in the US. They’re already collecting seed and specimens from the southern and western most locations of the US,like Louisiana and Texas for low chill variety potential.
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PawPaw cultivars from the mid south and north eastern U.S. are productive plants here in southern California.
Sounds like a good option for a potential seedling rootstock. It’d be interesting to see if using F1s as rootstock impacted fruit quality or growth habit at all.
It’d almost certainly be a dwarfing rootstock. Hard to say about other qualities though. Only one way to find out.
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