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Plant biologists have of a clever new way to the size of crops by as much as 20 per cent. They have genetically part of the mechanism in plants that is responsible for photosynthesis. Of course, photosynthesis the most important chemical reaction in the world. It is the process where plants sunlight to carbon dioxide into oxygen. This means we can all . The scientists have found a way for plants to use the energy they from sunlight better, so they grow bigger and more food. Lead researcher Professor Stephen Long said his team is genetically staple crops such as rice, wheat, maize and soybean – the world's biggest crops.

The scientists the mechanism that plants use to themselves from damage when the Sun's rays too strong. To damage, plants turn their energy into heat, which into the air. However, this heat-loss process continues even when clouds the Sun. The scientists put extra copies of the heat-loss genes into modified plants. These additional copies speed up the heat-loss process so the plants can more quickly to using energy to grow. Professor Long believes this could the world's food needs. He said if he could 20 per cent more food from crops, "that would greatly what we see as the future pressure on food supply".