Phal leaves yellowing?

[james mickelso]

I've seen the splitting before and other than genetics don't have an answer. The baby leaf is not as much a drain on the root system as a mature older leaf. I have a theory and it is just that with no solid facts to back it up. Phals usually grow then go dormant. When coming out of dormancy they need moisture and starches/sugars. Leaves are where they store them. I've noticed that my phals sometimes throw a leaf as it gets ready to push a flower spike. Only a theory. I've seen phals with 10eaves and seen some with one. But the majority I've seen growing happily have around 4. Must be a reason. Aside from root issues yellowing leaves are just losing their photosynthesizing ability as their energy is drained.