The big news on financial markets was that the apparent breakthrough on the US budget talks.
Harry Reid, the Senate majority leader, said on Wednesday that Democrat and Republican leaders had reached an agreement to extend the debt ceiling until February and reopen the government.
While any deal would still need approval from the House of Representatives, this was seen as something of a formality, and risk assets rose.
Wall Street shares rose 1.2% in late deals, while Brent crude oil was also up 1.2%, back above $111a barrel.
Indeed, the average commodity, as measured by the CRB index, rose 0.6%.
And, among agricultural commodities, raw sugar did even better, soaring 1.7% to finish at 19.01 cents a pound, recovering nearly all the ground lost in the last session on ideas of decent Indian export supplies.
Furthermore, "apparently, the strength in the market has brought in producer selling from Brazil, India, Mexico" and others, Thomas Kujawa, co-head of the softs department at Sucden Financial, said.
But there are also to factor in "weather issues" in Brazil's key Centre South region, where rainfall is slowing the cane harvest and diluting sugar content in what is harvested.
However, outperformers were difficult to find among agricultural commodities – as seems so often the case when equities are strong, with some traders talking of flows of money between the two markets.
One exception was soybeans, which closed up 0.7% at $12.76 ½ a bushel for November delivery, in a rise which seemed largely to reflect positive feeling which should have been reflected in the last session.
Then, industry data showed domestic US soybean crush demand better than expected, while the rumour mill talked of decent Chinese demand.
"China remains an active buyer of US beans," Benson Quinn Commodities said
'New Chinese soybean business'
Indeed, China's soybean crushers are enjoying record margins, as INTL FCStone underlined, if forecasting that this situation may not last for too.
The good margins hves helped give support to continued ideas that the top soybean importer remains a keen buyer.
"Chinese soybeans are up $0.08 a bushel this morning which has the trade talking about new Chinese soybean business," US Commodities said.
Furthermore, technically, Chicago's November contract received support from retaking its 200-day moving average.
But corn fell, by 0.2% to $4.42 ¾ a bushel, in part thanks to the prospect of a US deal, which reduced the tendency among hedge funds to close positions and head to the sidelines.
Furthermore, the US harvest is picking up pace again, a particularly sensitive topic for corn, rather than soybeans', given the historically slow pace of getting the crop in the barn, a knock-on effect from late spring plantings.
"A storm front pushed east over the last 24 hours but did not product as much rain as forecast," CHS Hedging said.
"Farmers are expecting to be back harvesting today."
And what they are cutting is being viewed with increasing optimism, from a yield perspective.
"Yield reports from corn harvest are much larger than most producers expected. This translates into traders being cautious," Paul Georgy at Allendale said.
The broker's chief strategist, Richard Nelson, is using a figure of 161 bushels per acre for the corn yield, "to get near a 2.5bn-bushel carryover for 2013-14", Mr Georgy said.
That is well above US Department of Agriculture estimates of 155.3 bushels per acre for the yield, and 1.855bn bushels for end-season stocks.
'Run out of bullish news'
And wheat fell even further, ending down 0.6% at $6.81 ½ a bushel.
"The wheat market appears to have run out of bullish news for the moment," Richard Feltes at RJ O'Brien said, with ideas of disappointing former Soviet Union plantings, and weather damage to a range of crops, factored in.
In fact, what news there was turned out to be a touch negative, with Cofco estimating Chinese wheat imports at 3m-5m tonnes in 2013-14, well below the 9.5m tonnes expected by the US Department of Agriculture, with some industry estimates higher still.
And US winter wheat hopes appear to have got off to a strong start, with enough rains to moisten soils but not to hamper planting progress significantly.
Indeed, Kansas City-traded hard red winter wheat, for which dryness has been a big worry, dropped 1.5% to $7.44 ¾ a bushel.
Gloomy price outlook
Maybe the Canadian Wheat Board was not just talking its book when is said that while the country's farmers "may not be excited about the prices they're seeing at elevators today, essentially all of the fundamentals behind those prices are bearish, and don't look like they are going to be changing any time soon.
"Now that crop quality and quantity is pretty well known," and in Canada looking large on volume but a little short on protein, "the only real wildcard remaining is the South American crop," CWB director of market research Neil Townsend said.
"But, barring a disaster there, there is nothing else to support an increase in prices from where we're at today for the rest of the crop year."
Booming UK imports – for now
In Paris, wheat for November fell 1.1% to E198.25 a tonne, but in London by a modest 0.1% to £163.20 a tonne, despite data showing huge imports and the lowest month for exports in at least 22 seasons, so signalling bigger supplies.
However, strong imports "should be no surprise to anybody, as we knew that consumers had taken cover for July through to September to protect themselves," traders at a major European commodities house said.
"For long periods of time, it was a cheaper option than buying UK origin."
The broker added: "We expect wheat imports to drop significantly as we move forward - for the millers UK wheat is of good quality and a lot cheaper than other origins and feed compounders will use as much maize as possible.
"It makes sense on a price comparison."