The effect of manganese (Mn) on wheat growth is examined in the article “Manganese Defic...

The effect of manganese (Mn) on wheat growth is examined in the article “Manganese Deficiency and Toxicity Effects on Growth, Development and Nutrient Composition in Wheat” (Agronomy J., 1984: 213–217). A quadratic regression model was used to relate y = plant height (cm) to , x = log ₁₀(added Mn)with μM as the units for added Mn. The accompanying data was read from a scatter diagram appearing in the article.