JoeReal

Bananas have really a big leaf area index compared to some plants. Even the sheaths underneath the pseudostem are photosynthesizing up to several layers deep. So variegation should not slow down its productivity. I have variegated citruses and bougainvilleas. They are exposed to the scorching sun without burns. White or yellow color doesn't mean there's no cholorphyll, they still have some active chloroplasts even if the color is near white. I have yet to see burnt leaf on my established variegated plants.

I have to admit though, all of my variegated citruses tastes bland and have fewer juices on them compared to their non-variegated counterparts.