Agrokultura has reported strong yield as its completes the harvest of its 2013 winter crop, however the company reflected larger doubt surrounding the protein content following heavy rains shortly before harvest.
"The quality of the harvested crops is on normal levels," the farm operator in the fomer Soviet Union said.
However, it added that rains earlier this month at its operations in Russia's black earth region "halted the harvest for 10 days and will have some effect on the protein content of the grains in that region".
The comments echo those of Black Earth Farming which said two weeks ago that wet weather had "caused frustrating delays to harvest progress and is also starting to affect crop quality somewhat".
"There are still many unknowns in terms of crop quality," Black Earth said, noting that the south of Russia is "reporting low specific weights and all regions [are] experiencing widely varying gluten levels".
There has also been some debate over quantity, with ,any commentators cautioning that Russia's wheat crop will fall well short of the US Department of Agriculture's 54.0m-tonne estimate.
Consultancy Lanworth on Wednesday restated a forecast of 48.4m tonnes.
Agrokultura, formerly known as Alpcot Agro, reported "significant improvements in yields overall, as a consequence of favourable weather across the areas of operation as well as improvements in execution".
"Yields are up across the board," in particular in the Russia black earth region, where winter wheat had come in at 3.7 tonnes per hectare, clean weight, up 48% year on year.
The increase was attributed to "mostly favourable growing conditions, as well as investments and advances in production technology".
In Ukraine, winter rapeseed yields 2.9 tonnes per hectares clean wheat, a rise of 32%, due "to a large extent to improvements in planting".