柑桔冻害的低温指标,是研究柑桔冻害的基础,国际上都比较重视研究这个问题。但由于每年冬季出现的低温强度、持续时间及冻后天气状况极不一致,仅在自然条件下研究柑桔冻害的低温指标,无论在进度上和深度上都将受到很大的局限。因此,国外不少学者往往利用冰箱、冰库、人工气候室 Citrus frost damage of low temperature indicators, is the basis for research citrus frost damage, the international are more emphasis on this issue. However, due to the extreme cold intensity, the duration and the post-thaw weather conditions appearing every winter, it is very difficult to study the low temperature index of citrus frost damage only under natural conditions, both in terms of schedule and depth. Therefore, many foreign scholars often use refrigerators, ice storage, artificial climate chamber