Just need some help with my PhD application.

I am a m.sc in biochemistry and have research experience in plant biochem/ chem. After 2 years break (i am teaching in an NGO) i decided to apply for Phd positions abroad in plant sciences. I came across a industrial doctorate that I would like to be a part of. However they wish for experience in a particular technique which I don't have a experience in! The technique in question is fairly recent and its not that commonly taught and I am sure not many people have experience in it! So I was just wondering its it worth apply or shall I keep searching for other opportunities!
If i do apply how expresses lack of experience in the said technique in Cover letter..