a In Columbia MO is the photoperiod the same each day of the

a. In Columbia, MO, is the photoperiod the same each day of the year? In what season is photoperiod longest? Shortest?

b. How does the ‘photoperiod’ changes with latitude? In summer, is photoperiod greater in New Orleans or in Minneapolis?

Solution

A). Photoperiod is the number of light hours in a day. The photoperiod is longest during the summer and shortest during the winter.

b). With increasing latitude from the equator, we observe an extreme increase in the photoperiod during the summer and reduced daylength during the winter. The latitude of New Orleans is, 29°58N, and the latitude of Minneapolis is 44°59N. Thus, the photoperiod in the summer is longest in Minneapolis.