| increasing frost risk associated with advanced citrus flowering dates in kerman and shiraz, iran: 1960-2010. | flowering dates and the timing of late season frost are both driven by local ambient temperatures. however, under climatic warming observed over the past century, it remains uncertain how such impacts affect frost risk associated with plant phenophase shifts. any increase in frost frequency or severity has the potential to damage flowers and their resultant yields and, in more extreme cases, the survival of the plant. an accurate assessment of the relationship between the timing of last frost ev ... | 2014 | 24429704 |