harvesting half the plant

the top of my plants will definitely be done b4 the bottom if i harvest the top part of my plants how much longer could i keep the bottom part of the plant growing with the light on? because wont that totally stress the plant into dieing?

anyone????

you can. it'll stress some but let the rest of plant grow

ya man, cut it down and save the bottom to finish up.. as long as u have 1/3 of the plant still to grow it wont die