what I gain from the images you posted with the question is: Its not burning, what is the white powder like substance, it may be the problem. further, the leaves looks dull, which may be due to the leaves have less cuticle, epicuticular waxes and perhaps less functional stomatal apparatus, thus, have high transpiration rate resulting in wilting of leaves and low relative water content. I suggest you to increase duration of progressive primary acclimatization before the secondary and green house transfer.