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ISHS Acta Horticulturae 266: V International Symposium on Flower Buds

GENETIC IMPROVEMENT OF LILIUM IN ITALY

Authors:   A. Grassotti, F. Torrini, A. Mercuri, T. Schiva
Abstract:
With the purpose of obtaining Lilium selections suitable for Italian conditions, 76 varieties, most of them belonging to the "Asiatic Hybrids" division, were tested by means of a "diallelic (partial and incomplete)" crossing design. The following characters were observed:
  1. - number of flowering plants after one year of cultivation
  2. - days required to flower (from bulbs)
  3. - number of flowers per stem
  4. - plants size

Of the 410 combinations of crosses carried out, only 69 families with a suitable size were considered. The 36 parents of these progenies appear interesting not only for their fertility but also for the large variability shown in the studied characters.

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