WHEAT Harvest advanced 4.9 percent week over week, reaching 16.5 percent of the suitable area. The national average yield continued to rise as combines moved through the core production zones, now at 2.6 MT/ha. In the highest-productivity regions, cutting was still limited, but early tests pointed out encouraging results. Most of the crop has already moved beyond the critical yield-definition stage. The effect of recent frosts will become clearer once more fields are harvested, although flooding in Buenos Aires province appears more likely to slow fieldwork and increase disease pressure than materially reduce yields. The Buenos Aires Grain Exchange raised its production estimate to 24 MMT, up 2 MMT from the prior forecast, while the Rosario...