Influence of the quality of rooted cuttings on the growth and final quality of cut chrysanthemum.
A series of 5 experiments was conducted to establish whether the quality of rooted cuttings has any effect on the appearance of cut chrysanthemums (Chrysanthemum indicum hybrids). Three different chrysanthemum cultivars were examined in a greenhouse (in summer and winter), where the N content of the cuttings (low, moderate and high), the cutting size (small and large) and the root number (full and half) were varied. In a homogeneous group of rooted cuttings, both the N content of the cuttings and the root number were of minor importance, provided that the nutrient and water conditions were not restrictive. However, if rooted cuttings with full and half root numbers were planted side by side in a common bed, the number of flowers and stem weights were lower for the cuttings the cuttings with the full root count) than in the corresponding homogeneous group. Cutting size had a major influence on the quality of the cut stems especially in mixed planting. Large cuttings planted in the homogeneous bed had more 5.4 flowers and 25.4 g higher stem weight as compared to small cuttings. These differences were even greater in mixed planting resulting in more than 11.6 flowers and higher stem weight of 31.5 g across all cultivars. Differences in the quality characteristics of the rooted cuttings were not reduced with time in the mixed bed. Therefore, it was concluded that competition in a mixed bed serves to heighten and aggravate the quality differences of rooted cuttings.
Kadner, R.; Druege, U.; Zerche, S. 2008. Influence of the quality of rooted cuttings on the growth
and final quality of cut chrysanthemum. European Journal of Horticultural Science 73 (6), 237–243.