Patent US3972146A successfully refreshed from Google Patents.
US3972146A
Expired / Lapsed
US
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Process for propagating strawberry plants
Assignee: Station des Cultures Fruitieres et Maraicheres
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Filing: 1975-07-17
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Granted: 1976-08-03
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Expires: 1995-07-17
Abstract
Abstract Strawberry plants are propagated by placing the normally dormant axillary or adventive shoots located on a strawberry plantlet at the base of a leaf stalk in an aqueous nutrient medium containing 0.01 to 100 mg/l N-benzyl-6-aminopurine until a multiplicity of shoots is formed, separating the formed shoots, and transplanting the separated shoots into another nutrient medium. The first medium must contain 0.01 to 100 mg/l N-benzyl-6-aminopurine, and the last transplanting medium should not contain more than 0.1 mg/l of the cytokinin in order to permit normal formation of leaves and roots.
Inventors
- 👤 Philippe Boxus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:07
CPC Classifications
A; A01; A01H; A01H4/00; A01H4/005
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
113 words
Process for the propagation of strawberry plants which comprises: a. placing a strawberry plantlet having a leaf stalk and normally dormant axillary or adventive shoots at the base of said leaf stalk in an aqueous nutrient medium capable of sustaining said plantlet until a multiplicity of shoots is formed, said medium containing an amount of a cytokinin sufficient to enhance the formation of said shoots; b. separating the formed shoots; and c. transplanting the separated shoots into another aqueous nutrient medium containing less than said amount of said cytokinin until each separated shoot develops leaves and roots, wherein said cytokinin is N-benzyl6-aminopurine, said sufficient amount being 0.01 to 100 mg/l of said N-benzyl-6-aminopurine.
Claim 2
Dependent Claim
113 words
Process for the propagation of strawberry plants which comprises: a. placing a strawberry plantlet having a leaf stalk and normally dormant axillary or adventive shoots at the base of said leaf stalk in an aqueous nutrient medium capable of sustaining said plantlet until a multiplicity of shoots is formed, said medium containing an amount of a cytokinin sufficient to enhance the formation of said shoots; b. separating the formed shoots; and c. transplanting the separated shoots into another aqueous nutrient medium containing less than said amount of said cytokinin until each separated shoot develops leaves and roots, wherein said cytokinin is N-benzyl6-aminopurine, said sufficient amount being 0.01 to 100 mg/l of said N-benzyl-6-aminopurine.
Claim 3
Dependent Claim
42 words
Process according to claim 1, wherein said separated shoots prior to said transplanting into said other nutrient medium are transplanted to an intermediate nutrient medium capable of sustaining the formed shoots, said intermediate medium containing 0.01 to 100 mg/l of said N-benzyl-6-aminopurine.
Claim 4
Dependent Claim
13 words
Process according to claim 1, wherein said sufficient amount is approximately 1 mg/l.
Claim 5
Dependent Claim
20 words
Process according to claim 1, wherein said other aqueous medium does not contain more than 0.1 mg/l of said N-benzyl-6-aminopurine.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-08-03 | 1980-02-02 | 1980-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-03 | 1984-02-02 | 1984-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-03 | 1988-02-02 | 1988-08-03 | $7700.00 | Window Closed / Lapsed |