Some Growth Curves of Barley Kernels

In the years 1915 to 1920, Harlan, Anthony, and Pope conducted an extensive series of kernel studies, mostly at Aberdeen, Idaho. In these studies the daily growth was determined by weighiing individual kernels from spikes of a definite age. The dry weights were obtained for the kernels from the same spikes. These results have been published in part only.2 In the present paper the writers have made use of both published and unpublished material. It was thought that a series of fitted curves might present a trend of growth in a light sufficiently different from that of the previous treatlnents to justify its presentation.