Winter chilling requirements are critical for flowering and fruiting of many
fruit species, with evidence that pistachio has been adversely affected by warm
winter, so that estimating chilling and heat requirements is crucial for
identifying appro
priate cultivars for given site. In our study, different levels of
chilling hours were applied (500-600-700-800-900-1000-1100-1200-1300-1400 h).
