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Will the allelochemicals produced by grass seeds inhibit the growth of wheat seeds? Abstract: This investigation was designed to see what effect the allelopathic chemicals of grass seeds had on wheat seeds. This was done by placing 20 grass seeds on a petri dish, with two sheets of filter paper inside, which was watered with 5ml of distilled water every three days for a week. After one week of growth the seeds were removed, then another 20 wheat seeds were placed on the second piece of filter paper as the first was discarded, and the same process was repeated. This was repeated in five more petri dishes. At the same time 60 wheat seeds were grown as a control, so the results could be compared. A clear inhibition of root and shoot growth could be seen in the experimental group compared to the control group. Many wheat seeds in the test...

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