Is Plants 'talk to' each other through their roots ?
Plants use their roots to “listen in” on their neighbours, according to research that adds to evidence that plants have their own unique forms of communication. The study found that plants in a crowded environment secrete chemicals into the soil that prompt their neighbours to grow more aggressively, presumably to avoid being left in the shade. “If we have a problem with our neighbours, we can move flat,” said Velemir Ninkovic, an ecologist at the Swedish University of Agricultural Sciences in Uppsala and lead author. “Plants can’t do that. They’ve accepted that and they use signals to avoid competing situations and to prepare for future competition.” Previously, scientists have shown that when plant leaves are touched as they brush up against the leaves and branches of neighbours they alter their growth strategies. Mature trees have been seen to experience “canopy shyness” and rein in their growth under crowded conditions. Others, take a more combative approach, diverting r