The document discusses a study on the effects of temperature on plant growth. It contains the following key points:
1. The study examined how temperature affects the growth rates of different plant species. Seedlings were grown at various temperatures and their growth was measured.
2. The results showed that growth rates varied between species and were dependent on temperature. Most plants grew faster at warmer temperatures up to a certain point.
3. Above a certain temperature threshold, extremely high or low temperatures inhibited growth. The optimal temperature range differed for each plant species studied.