Surprisingly, triple ears were found in most of plants sprayed with chitosan (Fig.5) except in control. We call
these ‘double ears’ or ‘triple ears’ if two or three ear shoots are visible at a node, respectively. In case of multiple
ears, one ear appears full size; the others are smaller and barren, consisting of a few short husks surrounding a tiny
cob with silks. Fig. 6 shows the multiple ears with no kernel growing within the husk. It was reported that the cause
come from a chemical application error of some type or inherent to the hybrid. Others report that the trait is common
in sweet corn. In our case, we assume that chitosan may help to promote the multiple ears.