I would imagine that would be quite likely and logical. Sometimes variation is caused by a virus, so it would be important to get your propagation material from the most affected part of the plant. I didn't get to look at it today (totally forgot) and am back to work tomorrow, so not much chance to get a look until maybe wednesday. I don't think my clumps are overly variegated, but then i never thought to look for the heaviest variegated culms to collect! I wish now i had.
Hey DAve, I did some reading and learned about 'plastids'. Bad plastids cause variegation, but too many will cause albinoism, which is usually fatal (in the world of bromeliads you leave it attached to the mother plant to keep it alive)
I have a variegated Lomandra longifolia, which I've never seen for sale, but I was told that i would need to propagate it, grow it in all conditions to find out its hardiness, and then either get my stock up, or sell it to someone for tissue culture. Meh, too hard! I guess I will never be rich! Now if it was a bromeliad I would be babying it! he he.