I agree with your statement. But, we still have production from other sources of input seeds. Variety to pick from canola, rapeseed, camelina, soybeans etc... All of these can be used to produce biofuels. I understand crops, having been around wheat growers and a harvesters myself as a kid. Having spent 1/2 my teenage years behind the wheel of a combine or tractor and I mean that literally, 12-20hrs/day, summertime. Harvest in, gotta' cut before rain..
This is where the Brazilian network comes into play with seeds/beans.