ISHS Acta Horticulturae 683: V International Symposium on New Floricultural Crops
USE OF CONDITIONING POLYMER IN ORNAMENTAL PEPPER SEEDLINGS PRODUCTION |
| Authors: | M.A. Vieira, W.B. Vaz Corvelho, A.A.F. Ferreira |
| Keywords: | substrate, hydrophilic polymer, rice husk, Capsicum annuum |
| Abstract:
A product formulated with hydroabsorbent polymer, fertilizers and growth stimulators, sold as TerraCottem®, improved substrate characteristics for seedling production under a variety of environmental conditions. Research was conducted to evaluate the effects of various concentrations of TerraCottem® on the pH and on electrical conductivity (EC) of mixtures of carbonized rice husks (CRH) and TerraCottem® utilized in the production of ornamental pepper seedlings (Capsicum annuum ‘Gion Red’) in a float system. In addition, TerraCottem® concentrations of 2.5; 5.0; 7.5 and 10 gxL-1 were evaluated for their effects on seedling development. In order to evaluate the action of the product on the initial growth of seedlings, CRH with a nutrient solution was used as a control treatment The pH and the EC evaluations were accomplished following Tedesco et al. (1995). Seedling was evaluated by measuring morphological parameters of aerial parts and root systems. We determinate that the addition of the TerraCottem® did not modify pH or EC nor contribute to improvement of the seedlings initial growth of Capsicum annuum ‘Gion Red’. | |
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