Abstract:

In order to reveal the effect of crude toxin of Fusarium moniliforme on maize, maize seed and seedling were treated by toxin with different concentration. The results showed that, along with higher concentration toxin, the ratio of inhibiting germination, the ratio of inhibiting embryo growth and the ratio of inhibiting radical were higher. Meanwhile, the hurt to maize seedling by toxin with higher concentration were severe, also the extent of seedling wilt were corresponding higher. The sensitivity of different maize seedling to toxin was diversity. The electronic conductivity of maize seedling was higher following with the time of treatment by toxin. In the seedling groups, the breed of ‘Ludan 981’ had stronger tolerance to toxin. The toxin could inhibit the germination of maize seed. This study would establish a basis for quick selection for resistant breed by toxic.