During the past 6 months I have been
involved in my own investigation on the effects of temperature on seed
germination and plant establishment. In a previous field trial of beetroot only
50% of the plants emerged and it was thought this was due to several hot days.
The question arose of whether this was due to the high temperature reducing
germination or if seedlings were able to draw up enough water from the soil for
transpiration. My experiment showed that although a temperature spike increased
the rate of plant emergence, and a temperature drop slowed down emergence,
neither affected the total emerged. As a concurrent experiment I investigated
how the amount of soil moisture affected germination and emergence. I
discovered the less the soil moisture percentage the less the germination rate.
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