The Australian wine group Southcorp has warned its contract grape growers they could lose their contracts if they fail to meet guidelines to protect the industry from long term damage from salinity. Southcorp has extended an alliance with the Australian Conservation Found to lift water quality along the Murray-Darling river basin. The concern is twofold. River Murray salinity has become a top of the agenda Australian political and environmental priority and wine exporters are concerned that overseas salinity rules could impact on their sales.