The Q&A Archives: Seed Germination Experiment

Question: I am in the 6th grade and I'm doing a science fair project on how or if water temperature effects the growth of plant seeds. Can you please help me or suggest some references on this specific subject? None of my resources cover this subject; I'm getting very frustrated.

Answer: I suggest you consider amending your experiment to see how overall temperature affects seed germination. It's a little hard to investigate the water temperature alone, because, unless you apply boiling water and kill the seed's embryo, the effect of the water temperature will lessen once it hits the room-temperature soil. Also, I think you'll find more info on optimum germination temperatures with respect to room temperature. You may have seen heating mats for sale that are placed under newly planted pots. The bottom warmth helps the seeds to germinate. Once the plants are growing, they tend to prefer slightly cooler temps.

Here are some sites that might help you.

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