5. Assume that a second corn hybrid was grown in soil treated with varying doses of a third herbicide (Herbicide C). Based on the results of the experiments, what prediction, if any, about the effect of Herbicide C on the growth of this second corn hybrid can be made?
Your Answer is
Correct Answer is D
Explanation
The method of elimination.
According to tables 1 & 2, it can be seen that herbicide must have an impact on plant growth, so A is excluded;
It can also be seen that no matter how much herbicide is used, it will affect the plant Growth has an impact, so exclude B and C