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冬小麦幼苗经不同温度和时间处理后，对胚根、胚芽中过氧化物同工酶有较明显影响。在常温（２５℃）下，随处理时间的延长，ＰＯＤ同工酶谱带数增加，不依品种、取材部位而异；在较高温度（３０℃）下，则呈曲线式变化，即随处理时间的延长谱带数增加，到一定时间以后又减少，高峰值与品种特性、取材部位有关；在高温（４０℃、５０℃）下，谱带数呈减少趋势，处理一定时间以后锐减。不同品种耐高温的能力差异很大。
After treated with different temperature and time, the winter wheat seedlings had a significant effect on the peroxide and isozymes in radicle and germ. Under normal temperature (25 ℃), the POD isoenzyme bands increased with the increase of treatment time, and varied with different varieties and materials. At higher temperature (30 ℃), the POD isozymes showed a curve change, The number of time-prolonged bands increased and then decreased again after a certain period of time. The peak value was related to the variety characteristics and the location of the material. At high temperature (40 ° C, 50 ° C), the number of bands decreased and dropped sharply after a certain period of time. Different varieties of high temperature ability vary greatly.