One week of cold treatment affects the seed production offum2.2 plants
Arabidopsis Col-0 and fum2.2 plants grown in control conditions
and plants that received one week of cold treatment after 8 weeks
growth, were transferred into a growth cabinet with a 16-hour
photoperiod to induced flowering. Plants were allowed to set seed and
seed yield estimated (Figure 8). No significant difference was seen
between the seed yield of Col-0 plants maintained at
20oC and those that experienced a cold treatment. In
contrast, when fum2.2 plants were exposed to cold for 7 days
before being transferred to long photoperiods, the final seed yield was
significantly reduced. This reduction was due to a lower number of
siliques being formed, rather than a reduction in the number of seeds
per silique.