Back-to-back bumper harvests will boost world grain stocks to their largest size in 15 years, said FAO. It estimated stocks would total 616 million tonnes at the end of this marketing year, up 6 percent in one year. Rice production is forecast for a record 500.4 million tonnes, marginally above the 2013 record. The wheat harvest would be a near-record 716.5 million tonnes. Altogether, the world will produce 2.5 billion tonnes of grain in 2014/15. That’s just below the 2013/14 level and 8 percent higher than the three preceding crops.