求翻译：皮肤变黑的障碍的发生率似乎受到采和采后的因素，如遗传因素，栽培技术和存储条件能使皮肤疾病是什么意思？

Skin black obstacle seems affected by mining and in the incidence of postharvest factors such as genetic factors, cultivation techniques and the storage conditions can cause skin disease