Vegetative Propagation of Ratibida columnifera (Nutt.) Wooton & Standl.
Variation in floral characteristics and growth habits within the native range of the North American wildflower Ratibida columnifera (Nutt.) Wooton & Standl. suggest potential for breeding and selection efforts to develop improved cultivars for commercial and residential landscapes. Toward that e...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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American Society for Horticultural Science (ASHS)
2022-06-01
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| Series: | HortScience |
| Subjects: | |
| Online Access: | https://journals.ashs.org/hortsci/view/journals/hortsci/57/7/article-p831.xml |
| _version_ | 1798024049583980544 |
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| author | Kaitlin A. Hopkins Michael A. Arnold Charles R. Hall Brent Pemberton Marco A. Palma |
| author_facet | Kaitlin A. Hopkins Michael A. Arnold Charles R. Hall Brent Pemberton Marco A. Palma |
| author_sort | Kaitlin A. Hopkins |
| collection | DOAJ |
| description | Variation in floral characteristics and growth habits within the native range of the North American wildflower Ratibida columnifera (Nutt.) Wooton & Standl. suggest potential for breeding and selection efforts to develop improved cultivars for commercial and residential landscapes. Toward that end, experiments in vegetative propagation were performed to enable perpetuation of unique germplasm. Stem development stage, applications of auxin, genotypic variation, and the effects of bottom heat applications were assessed to determine impacts on rooting percentages and adventitious root system quality measures. Younger apical stem sections rooted more readily and produced better quality root systems than more lignified basal stem cuttings. Optimal rooting percentages and rooted cutting quality ranged from 0.10% to 0.30% IBA (indole-3-butyric acid) quick dips, with 0.30% being optimal for most genotypes. Application of 26 °C bottom heat improved rooting ability in both cool and warm seasons compared with ambient and bottom heat of 32 °C. Bottom heat of 32 °C improved most rooting measures over ambient during the cool season, but not during the warm season. The degree of improvement in adventitious rooting associated with various developmental stage, auxin quick dips, and bottom heating varied among accessions of R. columnifera, suggesting that adventitious rooting characteristics should be evaluated as a selection criterion for cultivar development within this species. |
| first_indexed | 2024-04-11T17:56:15Z |
| format | Article |
| id | doaj.art-1e39245c37e84d6196ab7408aa3d8bbd |
| institution | Directory Open Access Journal |
| issn | 2327-9834 |
| language | English |
| last_indexed | 2024-04-11T17:56:15Z |
| publishDate | 2022-06-01 |
| publisher | American Society for Horticultural Science (ASHS) |
| record_format | Article |
| series | HortScience |
| spelling | doaj.art-1e39245c37e84d6196ab7408aa3d8bbd2022-12-22T04:10:43ZengAmerican Society for Horticultural Science (ASHS)HortScience2327-98342022-06-01577https://doi.org/10.21273/HORTSCI16483-22Vegetative Propagation of Ratibida columnifera (Nutt.) Wooton & Standl.Kaitlin A. Hopkins Michael A. ArnoldCharles R. HallBrent PembertonMarco A. PalmaVariation in floral characteristics and growth habits within the native range of the North American wildflower Ratibida columnifera (Nutt.) Wooton & Standl. suggest potential for breeding and selection efforts to develop improved cultivars for commercial and residential landscapes. Toward that end, experiments in vegetative propagation were performed to enable perpetuation of unique germplasm. Stem development stage, applications of auxin, genotypic variation, and the effects of bottom heat applications were assessed to determine impacts on rooting percentages and adventitious root system quality measures. Younger apical stem sections rooted more readily and produced better quality root systems than more lignified basal stem cuttings. Optimal rooting percentages and rooted cutting quality ranged from 0.10% to 0.30% IBA (indole-3-butyric acid) quick dips, with 0.30% being optimal for most genotypes. Application of 26 °C bottom heat improved rooting ability in both cool and warm seasons compared with ambient and bottom heat of 32 °C. Bottom heat of 32 °C improved most rooting measures over ambient during the cool season, but not during the warm season. The degree of improvement in adventitious rooting associated with various developmental stage, auxin quick dips, and bottom heating varied among accessions of R. columnifera, suggesting that adventitious rooting characteristics should be evaluated as a selection criterion for cultivar development within this species.https://journals.ashs.org/hortsci/view/journals/hortsci/57/7/article-p831.xmlasteraceaebottom heatibaprairie coneflowerrooted stem cuttings |
| spellingShingle | Kaitlin A. Hopkins Michael A. Arnold Charles R. Hall Brent Pemberton Marco A. Palma Vegetative Propagation of Ratibida columnifera (Nutt.) Wooton & Standl. HortScience asteraceae bottom heat iba prairie coneflower rooted stem cuttings |
| title | Vegetative Propagation of Ratibida columnifera (Nutt.) Wooton & Standl. |
| title_full | Vegetative Propagation of Ratibida columnifera (Nutt.) Wooton & Standl. |
| title_fullStr | Vegetative Propagation of Ratibida columnifera (Nutt.) Wooton & Standl. |
| title_full_unstemmed | Vegetative Propagation of Ratibida columnifera (Nutt.) Wooton & Standl. |
| title_short | Vegetative Propagation of Ratibida columnifera (Nutt.) Wooton & Standl. |
| title_sort | vegetative propagation of ratibida columnifera nutt wooton standl |
| topic | asteraceae bottom heat iba prairie coneflower rooted stem cuttings |
| url | https://journals.ashs.org/hortsci/view/journals/hortsci/57/7/article-p831.xml |
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