**3. Conclusions**

The results confirm our previous finding [38] that flowering and fruiting in the strawberry plant are promoted and advanced by SD during early stages of plant growth and development. Photoperiod is one of the primary factors eliciting hormonal changes that stimulate flowering and fruit set. Covered plants for 4 h in day

*Response of Strawberry (*Fragaria X ananassa *Duch.) Flowering and Yield to Photoperiod DOI: http://dx.doi.org/10.5772/intechopen.105442*

had a significant effect on most vegetative growth, flowering, and yield parameters. Generally, photoperiod via shorting day had significant effect on the studied parameters of the two (Festival and Albion) cultivars of strawberry plant. Festival cultivar responded to photoperiod more than Albion cultivar in fruit and yield parameter and that index to tolerance and good response of Festival cultivar.
