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荔枝忍受低温的临界温度为－３℃－４℃．因品种而异．供试３３个荔枝品种的耐寒性可分３类．耐寒性较强的５个品种叶片－３℃电渗率为４０％以下．束缚水／自由水大于１．０７０；耐寒性中等的２０个品种叶片－３℃电渗率为４０％－５０％，束缚水／自由水为０．６４４－１．０７０；耐寒性较差的８个品种－３℃叶片电渗率达５０％以上，束缚水／自由水为０．６４４以下．
Lychee endure low temperature critical temperature -3 ℃ -4 ℃. Varies depending on the species. The test of 33 varieties of litchi cold tolerance can be divided into three categories. The leaves of 5 cultivars with strong cold tolerance were below 40% at -3 ℃. The bound water / free water was more than 1.070. The leaves with moderate cold tolerance were 40% -50% at 3 ℃, 0.644-1.070 at bound water / free water, 8 varieties - 3 ℃ leaf electro-osmotic rate of more than 50%, irreducible water / free water of 0.644 or less.