The above results show that fruit developmental problems
including small fruit size, severe fruit drop and heavy fruit cracking
may be significant in over-winter off-season longan. Cold temperatures
during early fruit development (Stage I) was possibly
responsible for the occurrence of these problems. Hence, we simulated
winter cold (15/10
C, day/night temperatures) in phytotron
and examined its effects on fruit growth and the incidence of the
above-mentioned developmental problems with a warm temperature
regime of 28/23
◦
◦
C as control.