Deno’s Garden

Luetkea pectinata

Genus Luetkea

This source reports 4 treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1998

Difficulty Low Rated by us, not by the source.

Start around March 18, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: dark

No stated waiting before sowing. Then 18 days to germinate.

100% germination in 5–18 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Luetkea p. 45Public domain
Show the original text
Luetkea (Rosaceae). L. pectinata germ. 70D(100% in 5-18 d), 70L(100% on 8th d), 70 GA-3(100% in 3rd w), and 40-70D(100% on 4th d).
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Luetkea p. 45. 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 March 28, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: light

No stated waiting before sowing. Then 8 days to germinate.

100% germination in 8 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Luetkea p. 45Public domain
Show the original text
Luetkea (Rosaceae). L. pectinata germ. 70D(100% in 5-18 d), 70L(100% on 8th d), 70 GA-3(100% in 3rd w), and 40-70D(100% on 4th d).
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Luetkea p. 45. 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, 1998

Difficulty Moderate Rated by us, not by the source.

Start around October 3, 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

about 6 months from start to sowing. Then 4 days to germinate.

100% germination in 4 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Luetkea p. 45Public domain
Show the original text
Luetkea (Rosaceae). L. pectinata germ. 70D(100% in 5-18 d), 70L(100% on 8th d), 70 GA-3(100% in 3rd w), and 40-70D(100% on 4th d).
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Luetkea p. 45. 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, 1998

Difficulty Low Rated by us, not by the source.

Start around March 15, 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 21 days to germinate.

100% germination in 21 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Luetkea p. 45Public domain
Show the original text
Luetkea (Rosaceae). L. pectinata germ. 70D(100% in 5-18 d), 70L(100% on 8th d), 70 GA-3(100% in 3rd w), and 40-70D(100% on 4th d).
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Luetkea p. 45. 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.