Category Archives: seed saving

Mashua: Seed Maturity and Germination

In theory, mashua is easier to breed than many of the other Andean roots and tubers.  It has no incompatibility mechanisms, it self-pollinates easily, and most varieties flower abundantly and set lots of seed in a sufficiently long growing season.  The flowers are large and easy to emasculate in order to make crosses.  The only […]

Oca: Piling up the pods

I have a confession to make.  I no longer rush out every morning to scan the oca (Oxalis tuberosa) patch for pods.  In fact, I often let a week go by without looking at them.  What a difference a couple of months makes!  Back in July, I was checking them twice a day, pollinating by […]

Achocha: Saving seed

It is easy to save seed from your achocha (Cyclanthera pedata, also commonly known as caigua) plants, although you might wonder at what stage they are ready to harvest.  These instructions will also work for the closely related Cyclanthera brachystachya and probably for other Cyclantheras as well. I had been trying to time things so […]

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 […]