Dendrobium Nobile Winter Rest w Keiki?

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Yes, those might be buds.

Den nobiles don't need a dry winter rest to flower. Cool night temperatures, around 50-55 F / 10-12C trigger flowering. When actively growing shoots in spring/summer they should stay moist to wet. In fall and winter watering can be reduced, but they do better if they aren't dried to the point they drop leaves.

I would spray just the keiki roots frequently. Water the plant as soon as the medium is almost dry.