Wery interasting! Makes sence thugh. But what the article doesent mention is is protein/carbo hidrate ratio different becouse there is a increase in catbohydrate production, or is protein production its self suffering?
In other words-does one plant still produce the same amount of protein, while it produces more carbohidrates? My guess is thats the case, since protein production is bound mainly on nitrogen, while carbohidrates are in relation to CO2/light.