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Plants have a ¡°biological clock¡± that tells them when to produce leaves, seeds and other growth. A new study says understanding that clock may help scientists develop crops that can feed a growing population in an increasingly warmer world. Rob McClung is a scientist at Dartmouth College. He says scientists need to create ways to feed the nearly 10 billion people who will be living on Earth by the middle of the century.
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He says estimates show that there will need to be an increase in the world food supply of about 50 to 60 percent in the next thirty-five years. ¡°And we're worried that the things that we've done to increase agricultural productivity may be becoming exhausted.¡± To find new ways to increase productivity, Mr. McClung examined the biological clocks of plants. He learned that different genes in plants affect the plant's clock.
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