25 January 2013
Updated at 04:51 ET
Sugar-rich willow can boost biofuels' green credentials
Mark Kinver
Environment reporter, BBC News
Willow is widely grown as a feedstock for biomass and biofuel industries
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Scientists have identified willow trees that yield five times as much sugar as ordinary varieties, "drastically reducing" the impact of biofuels.
link-
http://www.bbc.co.uk/news/science-environment-21181376