If the elasticity of demand curve for barley is 1.50 at all prices higher than the current price, we would expect that when bad weather reduces the size of the barley crop, total revenue of barley producers will fall.

If the elasticity of demand curve is less than 1, as in this case (1.50), we can say that demand is inelastic. This means that a decrease in supply (due to bad weather reducing the barley crop) would lead to a proportionally smaller decrease in quantity demanded, resulting in an increase in price. As a result, total revenue of barley producers might not necessarily fall, as the increase in price may offset the decrease in quantity demanded.