According to the 1E Wilderness Survival Guide, 50' of hempen rope has a "tear weight" of 1,500 lbs. I didn't see any stats for silk rope - I don't think that was introduced until 2E.
Silk rope has a higher sexiness factor. After all, what succubus ties up its prey with hempen rope?
Surely they go for thorny vines or, um... ahem.The ones with more "abrasive" personalities?
Yeah - that./sorry

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.