Archive | potato (Solanum tuberosum)

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Potato: Color Genetics

For many crops, you don’t have to search very far to find a nice summary chart of the major genes involved in economically important traits.  This kind of information makes breeding decisions a lot easier.  Knowledge of the genetics underlying traits allows the breeder to identify varieties that are homozygous for a particular trait and […]

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Potato: A Ploidy Primer

Introduction How Seeds are Formed Domesticated and Wild Potatoes Ploidy Monoploid and Haploid Numbers Haploids Interactions of Ploidy in Crosses Unreduced (2n) Gametes Endosperm Ratio Endosperm Balance Number A Final Note on Probability Determining Ploidy Morphological Evalutation Guard Cell Counts Chromosome Counts This is probably not a finished work yet.  I have been puttering away […]

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About My Potato Breeding Projects

Because we sell excess seed from my potato breeding projects, we get a lot of questions about what my goals are.  Those goals are sometimes hard to articulate because I haven’t thought through them as clearly as I have done for the other plants that I work with.  My work with potatoes goes back before […]

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Summer heat and Andean crops

This was a pretty normal year on the coast of Washington.  We had a cool winter, a cool spring, a cool summer, and so far, we’re having a cool fall.  We’re close enough to the ocean that the temperature of the Pacific just off shore is a much better predictor of our temperatures than anything […]

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Potatoes: Potato flowers (Part 2)

The stats for my first post of potato flower pictures showed a lot of people doing web searches for potato flowers.  So, by indirect but popular demand, I bring you part two.  There are also some general updates about our potato season toward the bottom. Black Irish potato flowers Azul Toro potato flowers Maris Piper […]

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Potatoes: Potato flowers

One thing that you miss when buying your potatoes at the store is the wonderful display that they put on when they flower.  Flowering is good news for the traditional potato grower, as it signals the beginning of tuberization.  It is also good news for those who want to grow from seed, since the plant […]

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