**3.2.2 Material selection for seeds camouflaging: phase 2**

This phase, conducted between February and March 2002, aimed to:


Corn and pigments (powder dye) were weighed on an analytical balance. Corn seeds were divided into portions of 100 g. Powder dye in brown, yellow and red colors, were divided into different portions from 0.1 g to 2.0 g.

In each test (i.e. for every mixture type), a portion of corn (100 g) was poured into a plastic cup. In a separate bowl, the material to be tested was mixed up, adding soon after this mixture to the corn. The closed vessel was shaken to simulate the machine where seeds normally receive carbofuran syrup.

When the sifted soil was used, first the seeds received the coverage mentioned above, after, while they were still wet, they received a layer of dry soil. Then, it was added water and glue, and more servings of dry ground, until it reached the proper coverage. Next, the seeds were placed in plastic containers for dry and then received visual analysis.

Treatments (or prototypes) of camouflaging obtained with the ingredients that gave the best results (Figure 14) were evaluated for germination and can be found in the Table 1.
