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Corydalis caseana

Genus Corydalis

A spike of white tubular flowers tipped pink and purple, above blue-green divided leaves
FlowerMerrie FreedPublic domain

Protocol

DerivedN. C. Deno, 1996

Difficulty Moderate Rated by us, not by the source.

  1. Gibberellic acid soak

  2. Sow and cover

    Temperature: 70°F 21°C

No stated waiting before sowing. Germination time not stated; 21 days assumed.

50% germination.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Corydalis p. 33Public domain
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Corydalis (Fumaraceae). C. caseana ssp. brandegei germ. 70 GA-3(50%) and none in the other treatments. The seeds split in the 3rd w but it is another week or two before the radicle develops and the cotyledons do not start developing until the 10th w. A prior 4 w of OS had littie effect on the germination in 70 GA-3, but a prior 4 w at 70 was fatal.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Corydalis p. 33. Quoted exactly. Every value on this card comes from this record, except the difficulty rating, which is ours; the step names come from a fixed list.

How each step is done, in Deno’s words, and what Verified and Derived mean.

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