Chapter 19, Problem 15P

Suppose the length of maize ears has narrow sense heritability ${\text{(h}}^{\text{2}}\text{)}$ of $\text{0}\text{.70}$. A population produces ears that have an average length of $\text{28}$ cm, and from this population a breeder selects a plant producing $\text{34-}$ cm ears to cross by self $\text{-}$ fertilization. Predict the selection differential (S) and the response to selection (R) for this cross.