Evaluatation of influencing Ca concentration in nutrient solution and growth medium on the quantitative and qualitative yield of Lilium (Asiatic hybrid lilium)

To investigate effect of calcium and growth medium on Lilium (Asiatic Hybrid Lilium bulbs “Tresor” cultivar) and nutrients uptake, a factorial experiment based on completely randomized design was conducted by three levels of calcium in nutrient solution (2, 4 and 6 mM*) and five growth media (100% Perlite, 70% Perlite 30% Cocopeat, 50% Perlite 50% Cocopeat, 30% Perlite 70% Cocopeat, 100% Cocopeat) with three replicates. The attributes measureing in this experiment were height of the plant, stem diameter, length of flower stalk, number of buds, flower diagonal diameter, time taken to blossom, weight of the dried plant and postharvest vase life. Results showed that the height, stem and flower diameter, flowering stem height and bud number increased in combined bed of coccopeat and peat proportional to increment of coccopeat proportion. At the same concentration of calcium, the mixture of 70% coccopeat and 30% perlite increased flower longevity, but in net coccopeat and perlite, increasing of calcium led to increase in flower longevity.