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  • Author or Editor: M. James Tsujita x
  • Journal of the American Society for Horticultural Science x
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Abstract

Supplemental high pressure sodium (HPS) night lighting during propagation increased early growth and rooting of Chrysanthemum morifolium Ramat. cv. White Marble cuttings planted in October, and early growth only in cuttings planted in January. The results depended on the ambient light conditions and the level of supplemental HPS irradiance. Flower quality was enhanced by the supplemental light treatments only in the October plantings. Improving ambient light conditions as the crop developed apparently compensated for poor light conditions during the rooting period of the January planting.

Open Access