2. Height of plant is noticeably affected by shading. Short plants grown between tall plants at the time of rapid elongation are usually taller than when grown in an unshaded location. Several lots of hybrid sweet corn grown under tobacco shade both were taller than the same lots grown in the open. Some inbreds seem to respond to shading more than others. Iowa Kr (Osf) (from Lindstrom) grown between two first generation hybrids was taller in the middle of the row than at either end. Height graduated evenly from both ends toward the center where there was the most shading. Height is also affected by time of planting. Plantings of the same lots of seed at weekly intervals usually show the second planting to be taller than the first. This also may be due in part to the shading of the later plantings by the earlier.
D. F. Jones