Deno’s Garden

Barbarea vulgaris

Genus Barbarea

Two sources report 4 treatments between them. All are shown.

Protocol 1

DerivedN. C. Deno, 1998

Difficulty Moderate Rated by us, not by the source.

Start around March 26, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: dark

No stated waiting before sowing. Then 10 days to germinate.

36% germination in 6–10 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Barbarea p. 18Public domain
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Barbarea (Brassicaceae). B. vulgaris variegata germ. 70L(100% on 4th d) and 70D(36% in 6-10 d). When the sample in 70D was shifted to 70L after 9 w, 50% germ. in 1-6 w. Germination is not only better in light, but the period in 70D was deleterious. However, we may be dealing with a species in which the light requirement is disappearing on DS.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Barbarea p. 18. 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, 1998

Difficulty Low Rated by us, not by the source.

Start around April 1, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: light

No stated waiting before sowing. Then 4 days to germinate.

100% germination in 4 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Barbarea p. 18Public domain
Show the original text
Barbarea (Brassicaceae). B. vulgaris variegata germ. 70L(100% on 4th d) and 70D(36% in 6-10 d). When the sample in 70D was shifted to 70L after 9 w, 50% germ. in 1-6 w. Germination is not only better in light, but the period in 70D was deleterious. However, we may be dealing with a species in which the light requirement is disappearing on DS.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Barbarea p. 18. 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 March 26, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: dark

No stated waiting before sowing. Then 10 days to germinate.

25% germination in 6–10 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Barbarea p. 24Public domain
Show the original text
Barbarea (Brassicaceae). B. vulgaris germ. 70L(78% on 4th d) and 70D(25% in 6-10 d). Germination in 70 GA-3 was simiiar to 70L.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Barbarea p. 24. 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 Low Rated by us, not by the source.

Start around April 1, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: light

No stated waiting before sowing. Then 4 days to germinate.

78% germination in 4 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Barbarea p. 24Public domain
Show the original text
Barbarea (Brassicaceae). B. vulgaris germ. 70L(78% on 4th d) and 70D(25% in 6-10 d). Germination in 70 GA-3 was simiiar to 70L.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Barbarea p. 24. 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.