Sugar cane growth can be increased using genetic tweaksPrzemyslaw Koch/Getty ImagesThe growth of maize, sugarcane and sorghum has been greatly boosted by modifying the plants to take advantage of higher carbon dioxide levels now found in the air.This was done by simply increasing the activity of two genes, says Coralie Salesse-Smith at the University of Illinois. The finding should lead to the creation of new varieties whose yields go up as CO2levels continue to rise.For most of the time that photosynthetic cells
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