ISHS Acta Horticulturae 620: XXVI International Horticultural Congress: Asian Plants with Unique Horticultural Potential: Genetic Resources, Cultural Practices, and Utilization
EFFECT OF BULB SCALE REMOVAL ON VEGETATIVE GROWTH, FLOWERING AND FLOWER QUALITY OF LILIUM SPP. |
| Authors: | H.-J. Kim, D.-C. Choi, J.-M. Kim, S.-Y. Seo, J.-S. Choi, Y.-G. Choi |
| Keywords: | lilies, carbohydrate, chlorophyll |
| Abstract:
Bulb scales of Lilium spp are widely used for clonal propagation. In this study, we determined how bulb scale removal before planting could affect lily growth. Bulb scales of 3 lily cultivars, L. Oriental ‘Casa Blanca’, L. Asiatic ‘London’, and L. longiflorum ‘Gerlia’, were removed from the base of the bulb at 3 different levels, 33%, 50%, or 100%. A non-removal treatment was used as the control. The treated bulbs were planted in a rain-sheltered house covered with PE film. In all cultivars, vegetative growth (plant height, leaf length and width, leaf number, and stem diameter) was substantially reduced by the 100% removal while slightly reduced by 50% removal. The 33% scale removal treatment showed the values similar to those of the intact control. The delay of flowering and reduction of floret numbers per stem became severer as the percentage of scale removal increased. The concentrations of leaf chlorophyll and soluble sugars were significantly lower in the 100% scale removal treatment. Overall, about 33% removal of lily bulb scales before planting could be a useful tool for the lily growers who hope to reduce the cost of production without undesirable effects on vegetative growth, flowering, and flower quality characteristics. | |
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