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Kelseya uniflora

Genus Kelseya

A dense green cushion clinging to pale rock, freckled all over with tiny flowers that are crimson in bud and white when open.
The whole plantLaura HollowayCC0

This source reports 6 treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1996

Difficulty Low Rated by us, not by the source.

Start around February 22, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: dark

No stated waiting before sowing. Then 42 days to germinate.

100% germination in 7–42 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Kelseya p. 51Public domain
Show the original text
Kelseya (Rosaceae). K. uniflora, first sample DS 6 m germ. 70 GA-3(100% in 1-3 w), 70D(none), 40(10%)-70(40% in 1-5 w), and 100% in April in outdoor treatment. A second sample of fresh seeds germ. 70D(2/4 in 3rd w), 70D(4/4 in 1-6 w) if preceded by 4 w of OS, 40-70D(2/4), and none in the other treatments. The discrepancies may be due to differences in the amount of DS.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Kelseya p. 51. 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.

Protocol 2

DerivedN. C. Deno, 1996

Difficulty Low Rated by us, not by the source.

Start around September 17, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on September 16, 2026.

  1. Dry storage

    Duration: 180 daysTemperature: 70°F 21°C

  2. Gibberellic acid soak

  3. Sow and cover

    Temperature: 70°F 21°C

about 6 months from start to sowing. Then 21 days to germinate.

100% germination in 7–21 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Kelseya p. 51Public domain
Show the original text
Kelseya (Rosaceae). K. uniflora, first sample DS 6 m germ. 70 GA-3(100% in 1-3 w), 70D(none), 40(10%)-70(40% in 1-5 w), and 100% in April in outdoor treatment. A second sample of fresh seeds germ. 70D(2/4 in 3rd w), 70D(4/4 in 1-6 w) if preceded by 4 w of OS, 40-70D(2/4), and none in the other treatments. The discrepancies may be due to differences in the amount of DS.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Kelseya p. 51. 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.

Protocol 3

DerivedN. C. Deno, 1996

Difficulty Low Rated by us, not by the source.

  1. Dry storage

    Duration: 180 daysTemperature: 70°F 21°C

  2. Sow outdoors and leave it

    Up in April.

about 6 months from start to sowing.

100% germination.

This source doesn't state how long.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Kelseya p. 51Public domain
Show the original text
Kelseya (Rosaceae). K. uniflora, first sample DS 6 m germ. 70 GA-3(100% in 1-3 w), 70D(none), 40(10%)-70(40% in 1-5 w), and 100% in April in outdoor treatment. A second sample of fresh seeds germ. 70D(2/4 in 3rd w), 70D(4/4 in 1-6 w) if preceded by 4 w of OS, 40-70D(2/4), and none in the other treatments. The discrepancies may be due to differences in the amount of DS.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Kelseya p. 51. 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.

Protocol 4

DerivedN. C. Deno, 1996

Difficulty Moderate Rated by us, not by the source.

Start around March 15, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: dark

No stated waiting before sowing. Then 21 days to germinate.

50% germination in 21 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Kelseya p. 51Public domain
Show the original text
Kelseya (Rosaceae). K. uniflora, first sample DS 6 m germ. 70 GA-3(100% in 1-3 w), 70D(none), 40(10%)-70(40% in 1-5 w), and 100% in April in outdoor treatment. A second sample of fresh seeds germ. 70D(2/4 in 3rd w), 70D(4/4 in 1-6 w) if preceded by 4 w of OS, 40-70D(2/4), and none in the other treatments. The discrepancies may be due to differences in the amount of DS.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Kelseya p. 51. 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.

Protocol 5

DerivedN. C. Deno, 1996

Difficulty Moderate Rated by us, not by the source.

Start around September 17, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on September 16, 2026.

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C Light: dark

about 6 months from start to sowing. Germination time not stated; 21 days assumed.

50% germination.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Kelseya p. 51Public domain
Show the original text
Kelseya (Rosaceae). K. uniflora, first sample DS 6 m germ. 70 GA-3(100% in 1-3 w), 70D(none), 40(10%)-70(40% in 1-5 w), and 100% in April in outdoor treatment. A second sample of fresh seeds germ. 70D(2/4 in 3rd w), 70D(4/4 in 1-6 w) if preceded by 4 w of OS, 40-70D(2/4), and none in the other treatments. The discrepancies may be due to differences in the amount of DS.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Kelseya p. 51. 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.

Protocol 6

DerivedN. C. Deno, 1996

Difficulty Moderate Rated by us, not by the source.

Start around March 7, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on March 6, 2026.

  1. Dry storage

    Duration: 180 daysTemperature: 70°F 21°C

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    10 germinated in this phase.

  3. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

about 12 months from start to sowing. Then 35 days to germinate.

40% germination in 7–35 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Kelseya p. 51Public domain
Show the original text
Kelseya (Rosaceae). K. uniflora, first sample DS 6 m germ. 70 GA-3(100% in 1-3 w), 70D(none), 40(10%)-70(40% in 1-5 w), and 100% in April in outdoor treatment. A second sample of fresh seeds germ. 70D(2/4 in 3rd w), 70D(4/4 in 1-6 w) if preceded by 4 w of OS, 40-70D(2/4), and none in the other treatments. The discrepancies may be due to differences in the amount of DS.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Kelseya p. 51. 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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