2.3. Plotting fruit growth curves
Fruit development was traced against days after anthesis (time)
and effective accumulated temperature or cumulative heat units
from anthesis (temperature time) in degree days (
D), which was
calculated according to Acquaah (2002):
Effective accumulative temperature (
◦
D) =
◦
(Td − Tb)
where Tb represents basal growth temperature, which was set as
10
C, and Td is the average value of daily maximum and minimum
temperatures.