Factors influencing notching and necrosis of Dracaena deremensis 'Warneckii' foliage
Conover, C.A.; Poole, R.T.
Proceedings of the Tropical Region, American Society for Horticultural Science 17: 378-384
The quality of D. deremensis 'Warneckii' cuttings imported from Puerto Rico deteriorated during propagation and growing in commercial nurseries at Apopka, Florida. The foliage became necrotic with reddish brown spots at the edges, particularly in the white areas. As the plants increased in size, notches occurred in the leaves. Tissue analyses indicated that Ca and Cu contents decreased, F increased and Mg, Fe, Zn and Mn increased and then decreased with time from importation.