Measurement of Temperature Indicators for Potato Freezing Injury Using Manual Control Experimental Method
In this paper,the canopy temperature index of potato frost damage grade was determined by artificial control experimen-tal method.The results showed that the temperature index of grade 0 frost damage(no freezing)was canopy temperature greater than-3.0℃,the temperature index of grade 1 frost injury(light freezing)was that the canopy temperature was lower than or equal to-3.0℃and higher than-3.5℃,the temperature index of grade 2 frost damage(medium freezing)was canopy temperature less than or equal to-3.5℃and higher than-4.5℃,the temperature index of grade 3 frost damage(heavy freezing)was that the canopy tem-perature was lower than or equal to-4.5℃and higher than-5.5℃,and the temperature index of grade 4 frost damage(severe freez-ing)was that the canopy temperature was lower than or equal to-5.5℃.
potatofrost damagetemperature indicatorsartificial control experiment