Yellow spots, stains and transparent cúrcuma leaves

Hi, i'm growing cúrcuma on pots but all of curcumas planta on The pots have yellow spots, yellow stains and some of them sections of transparent leaves.

Any idea what is this?

This looks like a lack of water to me.

Was your soil keep moist?

I'd second Anne's suggestion, and also check to see if they were in direct sunlight at the time. The discoloured patches look like sunburn. The good news is that they appear to be a healthy plants and not badly affected, so just keep an eye on moisture levels and maybe out of the afternoon sun.