Potato: Extracting true potato seed (TPS)

Potato seeds (TPS) in a fine strainer for cleaning

Introduction This is the procedure that we use to extract potato seeds.  This procedure is suitable for extracting large amounts of seed while maximizing germination and minimizing potential for disease transmission.  We extract seed from as much as 25 gallons of berries in a given year and need a process that is fast and efficient […]

Oca: 10,000

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It was only seven weeks ago that I posted about what then seemed a significant achievement: the collection of 1,000 oca (Oxalis tuberosa) seeds.  This week, I passed 10,000.  My better (and funnier) half frequently teases me because I said at the beginning of the year that I would be satisfied if I got just […]

Ulluco: More ulluco seed pictures

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Yesterday I harvested two ulluco (Ullucus tuberosus) seeds – possibly the first collected anywhere since the 1980s. I harvested a third ulluco seed today and have counted an additional 21 on the plants.  I also discovered a third plant with seeds today, of the variety BK10425.2, so I now have seeds on two different varieties. […]

Ulluco: For my second true seed trick…

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I bring you ulluco (Ullucus tuberosus) seed! True seeds of ulluco (Ullucus tuberosus) I’ve been watching these tiny ulluco nuts maturing for the past couple of weeks with nervous anticipation.  I wasn’t even sure that they were actually seeds until two days ago as they dried down.  Ulluco flowers sometimes leave behind a dried husk […]

Oca: Growing from seed

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These are the instructions that I am sending out with packets of oca (Oxalis tuberosa) seed. These instructions reflect the techniques that have worked for me so far, but I am sure that there is room for improvement.  If you find a procedure that works better, please let me know. Oca seed does not appear […]

Oca: Around the oca patch

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We spent a few hours collecting oca (Oxalis tuberosa) cuttings with maturing pods today – about 250 in total.  That should translate into a lot of seed.  With more than 4000 seeds as of today, it is tempting to get lazy and let these open pollinated pods go, but there is no guarantee that we’ll […]