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采用４种不同砧木，研究茄子嫁接后防病（黄萎病）增产效果，以及嫁接对茄子根、茎、叶不同器官过氧化物酶（ＰＯＤ）同工酶的影响。结果表明：嫁接茄子的防病增产效果与ＰＯＤ同工酶的变化有着密切的关系，抗病性越强的砧木（如“托鲁巴姆”），其同工酶谱带变化越大，表现为“抗病”特征带的出现与“感病”带的消失或减弱；不同器官比较，根系同工酶变化显著，地上部茎、叶也有不同程度的变化，说明嫁接不仅直接作用于根系，而且对地上接穗也具有一定的诱导作用。ＰＯＤ同工酶谱带的这些变化，可作为鉴定和筛选茄子抗病砧木材料的重要依据。
Four kinds of rootstocks were used to study the effects of grafting on the isozymes of peroxidase (POD) in eggplant roots, stems and leaves after grafting. The results showed that the effect of disease prevention and yield increase of grafted eggplant was closely related to the change of POD isozymes. The more resistant the rootstock (such as “Torumbum”), the greater its isoenzyme band changed, The occurrence of “resistance” bands disappeared or weakened with the “susceptible” bands. The changes of root isozymes were significant in different organs, and the stems and leaves of shoots also varied in different degrees, indicating that grafting not only directly affects roots, And on the ground scion also has some induction. These changes of POD isoenzyme bands can be used as an important basis for identification and screening of eggplant disease-resistant rootstock materials.