众所周知,作物的抗旱性在很大程度上是由其抗热性决定的,因为作物在自然环境中脱水往往会引起过热反应。许多作者认为,作物在高温下死亡与原生质的凝固和酶的失效有关。然而库尔萨诺夫指出,作物在 5—50°温度下的衰亡与其“自身汁液的凝结”混为一谈未必正确。例如,在温度逐渐升高的情况下使作物经受相当高的加热,与温度 It is well-known that the drought resistance of crops is largely determined by their resistance to heat because dehydration of crops in their natural environment tends to cause overheating. Many authors believe that the death of crops at high temperatures is related to the coagulation of protoplasm and the failure of enzymes. However, Kursanov pointed out that the decline of crops at temperatures between 5-50 ° C may not be confused with the “condensation of their own juice.” For example, crops are subjected to relatively high heating, with increasing temperature, with increasing temperatures