Harvest index is 100% for

Solution (By Examveda Team)

Harvest index (HI) indicates and is referred to as the ratio of grain to total shoot dry matter and is a measure of reproductive efficiency.
It is calculated as:
$${\text{Harvest index}}\left( \% \right) = {\text{ }}\frac{{{\text{Grain yield}}}}{{{\text{Biological yield}}}} \times 100$$
The harvest index is 100% for fodders.