2.2. Effect of seed treatment on plant height and plant density
Possible effects of seed treatments on densities and heights of rice seedlings were evaluated on nine and five farms in 2010 and 2011, respectively. Seedling height and density data were collected approximately two weeks after rice emergence. In 2010, five, 122 cm long, row sections (stops) were selected by walking through one randomly selected cut of each treatment of interest. In 2011, five stops were selected in each plot. The stops were at least 50 m apart. At each stop, the number of plants in the 122-cm row section was counted and the heights of ten haphazardly selected seedlings were measured. Plant height was measured from the soil surface to the highest leaf tip of the plant.