English Discovery / For paction

A small question. A poem I was reading by the UK poet Allen Fisher, “Mummers’ Strut”, contains these lines:

I asked Allen about this & he said the last lines describe an actual sticker on an apple he picked up in Safeways. “English Discovery” is I think a breed of apple; but even after looking up “paction” I’m a little unclear what the 2nd phrase signifies. Anyone able to help here? --N