The Primary Study of Glucohexaose Induced Resistance to Tobacco Mosaic Virus

The induced resistance of the glucohexaose to tobacco mosaic virus (TMV) was investigated by method of greenhouse trials and (Fab’)2-ELISA. The results indicated that the efficacy of the induced resistance of the glucohexaose varied with the concentration in the range of 1~10 μg/mL, the optimum for the highest efficacy was 10 μg/mL. It was also found that the best lag period of the induced resistance of glucohexaose was 7 d and the protection period was about 28 d. On the other hand, with the increasing of spraying times, the higher efficacy of the induced resistance to TMV appeared.