Deno’s Garden

Elmera racemosa

Genus Elmera

This source reports 5 treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty Low Rated by us, not by the source.

Start around March 16, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on March 15, 2025.

  1. Dry storage

    Duration: 730 daysTemperature: 70°F 21°C

  2. Sow and cover

    Temperature: 70°F 21°C Light: dark

about 2 years from start to sowing. Then 21 days to germinate.

100% germination in 21 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Elmera p. 138Public domain
Show the original text
Elmera (Saxlfragaceae). E. racemosa germ. only in light as shown by 70L(93% in 4-8 w) and none in 70D. A preliminary cold period is fatal and none germ. in 40-70L, 40-70D, or outdoor treatment. The above data are for seeds received in midwinter which had been DS about 6 m at 70. Experiments were conducted on this same seed that had been DS for an additional 18 m making a total of 2 y. This seed germ. 70L(3% in 3-5 w), 70D(none), and 70D(100% in 3rd w) if treated with GA-3. The seedlings from the GA-3 treatment appeared to be healthy. It is remarkable that the GA-3 gave 100% germination on the seeds DS 2 y when this long DS period drastically reduced the germination in 70L. To be certain that the seeds subjected to 70L were viable, the sample was treated with GA-3 after 6 w whereupon 70% germ. in 4-12 d.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Elmera p. 138. 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, 1993

Difficulty Low Rated by us, not by the source.

Start around February 8, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: light

No stated waiting before sowing. Then 56 days to germinate.

93% germination in 28–56 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Elmera p. 138Public domain
Show the original text
Elmera (Saxlfragaceae). E. racemosa germ. only in light as shown by 70L(93% in 4-8 w) and none in 70D. A preliminary cold period is fatal and none germ. in 40-70L, 40-70D, or outdoor treatment. The above data are for seeds received in midwinter which had been DS about 6 m at 70. Experiments were conducted on this same seed that had been DS for an additional 18 m making a total of 2 y. This seed germ. 70L(3% in 3-5 w), 70D(none), and 70D(100% in 3rd w) if treated with GA-3. The seedlings from the GA-3 treatment appeared to be healthy. It is remarkable that the GA-3 gave 100% germination on the seeds DS 2 y when this long DS period drastically reduced the germination in 70L. To be certain that the seeds subjected to 70L were viable, the sample was treated with GA-3 after 6 w whereupon 70% germ. in 4-12 d.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Elmera p. 138. 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, 1993

Difficulty Very high Rated by us, not by the source.

Start around March 2, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on March 1, 2025.

  1. Dry storage

    Duration: 730 daysTemperature: 70°F 21°C

  2. Sow and cover

    Temperature: 70°F 21°C Light: light

about 2 years from start to sowing. Then 35 days to germinate.

3% germination in 21–35 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Elmera p. 138Public domain
Show the original text
Elmera (Saxlfragaceae). E. racemosa germ. only in light as shown by 70L(93% in 4-8 w) and none in 70D. A preliminary cold period is fatal and none germ. in 40-70L, 40-70D, or outdoor treatment. The above data are for seeds received in midwinter which had been DS about 6 m at 70. Experiments were conducted on this same seed that had been DS for an additional 18 m making a total of 2 y. This seed germ. 70L(3% in 3-5 w), 70D(none), and 70D(100% in 3rd w) if treated with GA-3. The seedlings from the GA-3 treatment appeared to be healthy. It is remarkable that the GA-3 gave 100% germination on the seeds DS 2 y when this long DS period drastically reduced the germination in 70L. To be certain that the seeds subjected to 70L were viable, the sample was treated with GA-3 after 6 w whereupon 70% germ. in 4-12 d.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Elmera p. 138. 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, 1993

  1. Sow and cover

    Temperature: 70°F 21°C Light: dark

No stated waiting before sowing.

0% germination.

Nothing germinated at 70.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Elmera p. 138Public domain
Show the original text
Elmera (Saxlfragaceae). E. racemosa germ. only in light as shown by 70L(93% in 4-8 w) and none in 70D. A preliminary cold period is fatal and none germ. in 40-70L, 40-70D, or outdoor treatment. The above data are for seeds received in midwinter which had been DS about 6 m at 70. Experiments were conducted on this same seed that had been DS for an additional 18 m making a total of 2 y. This seed germ. 70L(3% in 3-5 w), 70D(none), and 70D(100% in 3rd w) if treated with GA-3. The seedlings from the GA-3 treatment appeared to be healthy. It is remarkable that the GA-3 gave 100% germination on the seeds DS 2 y when this long DS period drastically reduced the germination in 70L. To be certain that the seeds subjected to 70L were viable, the sample was treated with GA-3 after 6 w whereupon 70% germ. in 4-12 d.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Elmera p. 138. Quoted exactly. Every value on this card comes from this record; the step names come from a fixed list.

Protocol 5

DerivedN. C. Deno, 1993

Difficulty Very high Rated by us, not by the source.

  1. Sow outdoors and leave it

    Nothing germinated outdoors.

No stated waiting before sowing.

0% germination.

This source doesn't state how long.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Elmera p. 138Public domain
Show the original text
Elmera (Saxlfragaceae). E. racemosa germ. only in light as shown by 70L(93% in 4-8 w) and none in 70D. A preliminary cold period is fatal and none germ. in 40-70L, 40-70D, or outdoor treatment. The above data are for seeds received in midwinter which had been DS about 6 m at 70. Experiments were conducted on this same seed that had been DS for an additional 18 m making a total of 2 y. This seed germ. 70L(3% in 3-5 w), 70D(none), and 70D(100% in 3rd w) if treated with GA-3. The seedlings from the GA-3 treatment appeared to be healthy. It is remarkable that the GA-3 gave 100% germination on the seeds DS 2 y when this long DS period drastically reduced the germination in 70L. To be certain that the seeds subjected to 70L were viable, the sample was treated with GA-3 after 6 w whereupon 70% germ. in 4-12 d.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Elmera p. 138. 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.