Abstract
'Rose-White' is a unique genetic line of Aquilegia χ hybrida Sims that will flower without a cold period, does not have an extended juvenile growth phase, and is responsive to gibberellin treatment. Plants treated at the 7-leaf stage with GA(4/7) bolted and flowered 20 days earlier than untreated plants. Gibberellin treatment did not increase the growth rate (leaves/day), but induced flowering after the production of fewer leaves. Plant height and the number of flowers per plant increased significantly. GA(4/7) treatment delayed flower senescence and abscission. Flower longevity was extended 3-fold when compared to untreated plants. Treatment response was more pronounced at lower temperatures (19 °C day/12 °C night) than at higher growing temperatures (24 °C day/19 °C night). GA3 was much less effective than GA(4/7) in promoting flowering, and there was no response to benzyladenine.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1-5 |
| Number of pages | 5 |
| Journal | Plant Growth Regulation |
| Volume | 24 |
| Issue number | 1 |
| DOIs | |
| State | Published - 1998 |
All Science Journal Classification (ASJC) codes
- Physiology
- Agronomy and Crop Science
- Plant Science
Keywords
- Flowering
- Gibberellin
- Herbaceous perennials