Zeedman
Garden Master
Sapporo Midori failed completely this year. It did moderately well when germination tested (about 40%) but had zero germination when planted in the ground - and it was heavily over-seeded! That is one of my favorite edamame varieties too, very large-seeded; it was one if the varieties that I planted a lot of, for freezing. Instead, it is now one of the 2 soybeans I will try to resurrect in pots next year.Hokkaido makes me think of the Sapporo Midori soybeans I had from @Zeedman a millennium ago . This is not soybean growing country, I guess. There are no farms with soybeans that I know of. Trying several from Zeedman and Manitoba and Sapporo Midori had names that sounded like good choices. They were outperformed by one of the other varieties ... But, "Manitoba" ... And, Sapporo was where they once held the Winter Olympics !
I find it really odd that soybeans planted at home - some of which which were 10-20% in germination testing - performed much better than soybeans planted in the rural garden which tested much higher. I replanted Sapporo Midori (and St. Ita) under better conditions, and still got 0% germination... so I'm wondering if there is indeed some pest or pathogen there which is destroying the seed. I've noticed very tiny brown beetles there, whenever I turn over a trowel of dirt.
Which still wouldn't explain why other beans & soybeans in the same location had very good germination.
Fortunately, the other main-crop edamame (Tengamine) is doing very well. I had hoped to post a few photos, but it appears my old Note 4 has finally uploaded itself to the cellphone afterlife. Looks like I'm phone shopping tomorrow.