ISHS Acta Horticulturae 708: V International Strawberry Symposium
EVALUATION OF TRAY-PLANT QUALITY IN THE PROPAGATION PHASE |
| Authors: | S. Gianluca, A. Letouzé, C. Sabbadini, D. Neri |
| Keywords: | Fragaria × ananassa, flower induction, architectural model, chilling, meristems |
| Abstract:
Flower induction and differentiation, and plant growth and development are dynamically linked to a number of forcing practices. Therefore, any indicator of nursery plant quality must be able to assess plant potential in different cultivation systems. The objective of this work was to study plant growth dynamics and flower formation through the architectural development of strawberry tray-plants, cv Gariguette, estimating their productive potential during the propagation phase in au-tumn. After placing the plants in a greenhouse with long days and high temperatures to stimulate plant growth, the plants were dissected in January, and their architec-ture compared. The primary inflorescence primordium was visible at the beginning of Octo-ber, and flower development was recorded up to December under natural conditions. The inflorescence was strictly terminal, and when tray-plants were forced, vegetative growth was restored by the bud immediately below the inflorescence, initiating a new crown, but this rarely occurred for other lateral buds. The morphological response to forcing conditions depended on the physiological stage and relative position of each organ. | |
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