Summary
Lilium lankongense crossed with some related species of Lilium produced seeds without endosperm and with very small embryos which would not germinate in soil. Hybrid plants have been obtained from a number of these crosses by culturing excised embryos on sterile nutrient medium. It is suggested that the technique may prove useful in the production of hybrids from other lily species-combinations which are not normally viable.
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References
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North, C., Wills, A.B. Inter-specific hybrids of Lilium lankongense Franchet produced by embryo-culture. Euphytica 18, 430–434 (1969). https://doi.org/10.1007/BF00397793
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DOI: https://doi.org/10.1007/BF00397793