Deno’s Garden

Rosa paulii

Genus Rosa

Protocol

DerivedN. C. Deno, 1998

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

  1. Warm moist stratification

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

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  3. Warm moist stratification

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

  4. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  5. Warm moist stratification

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

  6. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  7. Warm moist stratification

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

  8. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  9. Warm moist stratification

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

Steps after step 7 run on after germination.

about 1.5 years from start to sowing. Then 3 days to germinate.

8% germination in 3 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Rosa p. 58Public domain
Show the original text
Rosa (Rosaceae). Germinations are characterized by two features. First is that germinations begin after several cycles and continue over several years. Second is that light or GA-3 have no effect. Germination may occur in either 70D or 40, but when germination occurs at 70 it-is usually within a few days after the shift to 70. R. paulii rosea germ. 70D-40-70D-40-70D-40-70D(1/12 on 3rd d)-40-70D(1).
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Rosa p. 58. 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.