higher than the maximum limit of 20 mg/kg under drought stress at
the mean temperature of 15e28 C, minimum temperature of
13e26 C, and maximum temperature of 20e33 C in China. What's
more, there were some differences in the optimal temperature for
aflatoxin contamination in different locations and it would rise
along with the decrease of the latitude. The result in this paper
seemed to be lower than the previous literature. Actually, the
aflatoxin contamination and climate conditions in this study
occurred naturally, implying that the climate conditions were
fluctuating all the time, which could reflect its real relationship
with aflatoxin concentrations in peanuts of China and reveal the
relationship between peanut aflatoxin contamination and the climatic
conditions 30 days before harvest under natural conditions in
China. It is significant to understand the rule of aflatoxin contamination
in peanuts of China and consequently take preventive
measures. The reason why the relationships between aflatoxins and
the climatic conditions in these four figures were not smooth
curves was that many other factors such as peanut variety, soil type,
insect damage, and planting pattern influenced aflatoxin contamination.
Further researches are required to determine the specific
relationships under controlled conditions with only one variable.