K-sci, your climate is similar to mine. As long as that back bulb section remains together, and you have some viable dormant "eyes" (lateral meristems), you have a reasonably good chance at producing new growths. Even better if there are at least some living roots.
If I understand your first post, you have them them in a greenhouse, bare riot, no pot. We are already in tropical storm season, consider putting them outdoors in shade to catch the prolonged rain that comes with tropical systems. If the plants can absorb water at all, those are the conditions that are most likely to hydrate the plant and allow growth. I tie Cattleya back divisions up in tree branches this time of year, I have fairly good success getting them to root and grow this way.
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