Abstract
Aqueous extracts of yaupon (Ilex vomitoria) fruit inhibited root growth of germinating cucumber seedlings. The inhibitory factor was slightly soluble in 80% ethanol, stable when stored up to 210 days at 22°C in amber bottles and resisted breakdown when stored at -2°C or 6°C. Some loss of activity was evident in boiled extracts. Extraction of fruit of varying degrees of maturity indicated that the concentration of the inhibitor(s) in mature fruit was greater than in green fruit. The data suggest that the factor affects growth of the root rather than inhibiting germination.
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Diaz-Colon, J.D., Baur, J.R. & Bovey, R.W. Some characteristics of a growth inhibitory factor in Yaupon Fruit. Econ Bot 24, 403–407 (1970). https://doi.org/10.1007/BF02860744
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DOI: https://doi.org/10.1007/BF02860744