The number of genetically-modified crops with stacked traits will increase in time as more farmers opt for them, beginning with corn. This prediction was made by Dr. Clarito Barron, director of the Bureau of Plant Industry, after noting that 70 percent of farmers using GM corn are propagating crops with double traits and the use of three or four stacked traits may not be far off. Barron confirmed that BPI reviewed and approved 67 transformation events, eight of which have applied for propagation.