ISHS Acta Horticulturae 567: IV International Strawberry Symposium
EFFECTS OF TEMPERATURE AND PHOTOPERIOD ON FLOWER BUD INITIATION OF DAY-NEUTRAL AND EVERBEARING STRAWBERRIES |
| Authors: | M. Nishiyama, K. Kanahama |
| Keywords: | Fragaria x ananassa, reflowering |
| Abstract:
Strawberry (Fragaria x ananassa Duch. cv. ‘Hecker’ and cv. ‘Summerberry’) plants were grown at 30/25 °C under an 8-hr photoperiod in phytotrons from June to September (for 16 weeks). As a result, flower bud initiation (FBI) was completely inhibited by the 16th week. Then, these plants were grown under 8- or 24-hr photoperiods at 20/15 °C or 30/25 °C. In these environments, except under the 8-hr photoperiod at 30/25 °C, the plants resumed FBI. These results indicate that the flowering response of these cultivars is qualitative under high temperature and quantitative under low temperature. | |
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