Deno’s Garden

Viola cuneata

Genus Viola

This source reports 4 treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1996

Difficulty Low Rated by us, not by the source.

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

  1. Gibberellic acid soak

  2. Sow and cover

    Temperature: 70°F 21°C

No stated waiting before sowing. Then 14 days to germinate.

71% germination in 14 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Viola p. 86Public domain
Show the original text
Viola (Violaceae). Four species of rosulate Violas from the Andes germ. only in 40 GA-3 (2nd Ed.). A most important new result is that all four samples germ. identically after fours years of DS. This shows that these have considerable longevity in DS in contrast to species native to Eastern U. V. cuneata germ. 70 GA-3(5/7 in 2nd w), 40(4/7 in 7-13 w)-70D-40, 70L-40(2/6)- 70D(1/6), and none in 70D-40-70D.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Viola p. 86. 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 High Rated by us, not by the source.

Start around October 6, 2026 for a May 3 last frost.

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  2. Warm moist stratification

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

  3. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

Steps after step 1 run on after germination.

about 3 months from start to sowing. Then 91 days to germinate.

57% germination in 49–91 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Viola p. 86Public domain
Show the original text
Viola (Violaceae). Four species of rosulate Violas from the Andes germ. only in 40 GA-3 (2nd Ed.). A most important new result is that all four samples germ. identically after fours years of DS. This shows that these have considerable longevity in DS in contrast to species native to Eastern U. V. cuneata germ. 70 GA-3(5/7 in 2nd w), 40(4/7 in 7-13 w)-70D-40, 70L-40(2/6)- 70D(1/6), and none in 70D-40-70D.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Viola p. 86. 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 High 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. Warm moist stratification

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

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  3. Warm moist stratification

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

    1/6 germinated in this phase.

Steps after step 2 run on after germination.

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

33% germination.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Viola p. 86Public domain
Show the original text
Viola (Violaceae). Four species of rosulate Violas from the Andes germ. only in 40 GA-3 (2nd Ed.). A most important new result is that all four samples germ. identically after fours years of DS. This shows that these have considerable longevity in DS in contrast to species native to Eastern U. V. cuneata germ. 70 GA-3(5/7 in 2nd w), 40(4/7 in 7-13 w)-70D-40, 70L-40(2/6)- 70D(1/6), and none in 70D-40-70D.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Viola p. 86. 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

  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, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Viola p. 86Public domain
Show the original text
Viola (Violaceae). Four species of rosulate Violas from the Andes germ. only in 40 GA-3 (2nd Ed.). A most important new result is that all four samples germ. identically after fours years of DS. This shows that these have considerable longevity in DS in contrast to species native to Eastern U. V. cuneata germ. 70 GA-3(5/7 in 2nd w), 40(4/7 in 7-13 w)-70D-40, 70L-40(2/6)- 70D(1/6), and none in 70D-40-70D.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Viola p. 86. Quoted exactly. Every value on this card comes from this record; the step names come from a fixed list.