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Old 09-15-2013, 12:03 PM
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I just started the student judging program and my first presentation will be on dendrobium hybrids. So far in my early research, I have found, certain species( or hybrids of a particular species) will only cross with certain others. Depending on what is being crossed, it was found that the primary hybrids were sometimes slower growing than the species. bud drop was the most serious problem. The primary hybrids were very much infertile. Or mules as they have been called. there is a hybridizer by the name of Phil Spence who mentions it took up to 50 attempts to get a pod for a second generation and that produced only a few viable seedlings.
Not sure this answered your question, but hopefully you find it helpful.
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