Abstract
Abstract Ponytail palms (Beaucarnea recurvata L.) were grown in three media having similar water holding capacities but different porosities, under 70%, 50%, or 27% full sunlight and fertilized with each irrigation or once every three irrigations. Plants grown in media with lower porosities grew more than plants in a peat-lite medium but required more frequent irrigation. Plants grew less under 27% full sun than at the two higher light levels. Frequent fertilization did not increase plant size but decreased pH and increased electrical conductivity of the growth medium leachate substantially. Plant acclimatization increased with decreasing production light intensity and noncapillary porosity of the medium.
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