The mass fraction of crude protein in maize grain ranges from 6–13% and determines its nutritional and technological value. This indicator depends on agricultural practices, nitrogen nutrition levels, and weather conditions during the grain-filling period.
In the reference
30
varieties
crop Maize,
where this is mentioned in the description.
The protein content in maize grain typically varies from 6% to 13%. When breeding for increased protein levels, a negative correlation with grain yield is often observed. Furthermore, the increase in total protein frequently occurs due to the accumulation of zein, an alcohol-soluble fraction poor in essential amino acids such as lysine, tryptophan, and methionine, which reduces the biological value of the protein complex.
The indicator is significantly influenced by growing conditions: optimal nitrogen nutrition during the growing season contributes to higher protein content, whereas its deficiency during the grain-filling phase leads to a decrease. Additionally, high temperatures during the filling period can contribute to a relative increase in protein by inhibiting starch deposition. High protein content is important for feed purposes, but it may be undesirable in the starch and syrup industry, as it hinders the extraction of starch from the endosperm.
General information about the subject — on the page
Protein content.
Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.