My cuttings have a large root growth  and no leaf buds have opened.What I want to know is do they still need a humidity dome or will leaf out with out one.Rex.

In my experience, a humidity dome is helpful until you have leaf development.  Then, light becomes more important.  Someone correct me if there's more solid info on this.

After my cuttings root and start shooting out leaves, I leave the humidity dome on until the leaves start bumping into the sides or top of the dome, then it comes off for good.

If they are the ones I sent, I've noticed that they root very quickly and vigorously but take an unusually long time to leaf out. Most were root bound in 20 oz. cups by the time I saw a leaf. Once the first buds breaks they will add leaves very quickly. I left mine several of mine in full sun (suction cup shampoo holder against south facing window) with no humidity chamber from the time the first bud broke. Most of them lost a leaf or two but it didn't slow them down much.

If you don't have leaves then when the leaves start they'll be used to whatever conditions they start in.  If you have roots there's no benefit to a humidity dome, you just risk mold.  The plant will get all the moisture it needs from you watering it.  If the leaves start in high humidity the stomata don't need to close and so they aren't up to the task when you take the humidity away.  Then you have to acclimate the leaves to dryer air.  If you start them out in regular air they do fine in it.

I have had the new leaves mold in my cool basement with humidity domes. I am not here all day to air them out occasionally. On the other hand, now at 23% humidity and new starts just leaving out show some sign of desiccation.

Thanks rcantor, that was my   idea as well.Rex.

Thanks for the info Bob.  I too will keep this in mind.

I leave mine in the bins til I see the leaf bud starting to swell then I take them out and keep an eye on them. If the new leaf coming out looks like it's getting dry, doesn't happen often, then I put it back in the bin with the lid partly open. If all's well, then I take it out again and watch it closely once more.

I generally am not concerned with no leaves as long as the roots developed nicely, the leaves come in time and then need more regular care given they consume more water , the more leaves they have as they grow.  This is an example of one that has a healthy batch of roots but no leaves after about 5 weeks in moss in a cup. This one's siblings do have roots of the similar development and green shoots and leaves.

depends on what sort of cutting and how well your roots are developed. if your cutting was dormant cutting and roots are very well developed, you don't need humidity dome. the new leaves coming out should adjust to the environment. however, if you house or where ever you are keeping them is extremely dry, like my house, humidity dome might be necessary. my rooted cuttings, if they have very good root growth and no leaves, will go to 1 gal and stay in the garage. they will put out leaves there and with humidity in the garage, they are fine.

however, the cuttings that should have no issue in garage when staying inside of my house will dry up and, strangely enough, rot. i have almost 90% kill rate on house plants due to drying up and rotting.

Yes, I agree. I use orchid humidity trays under my pots when they migrate to the 1G stage and place them in colder storage until spring, the rooted cuttings once rooted and leafed out are too fussy in a standard house environment in the winter months, so they go either in colder storage  or the greenhouse if I want them to leaf out more. 

http://www.tindaraorchids.com/copper.htm?gclid=CO2J29TL_rQCFQyk4Aod3ioAaw