ISHS Acta Horticulturae 683: V International Symposium on New Floricultural Crops
EVALUATION OF COSTUS SPECIES AND THEIR USE AS INDOOR POTTED-PLANTS |
| Authors: | C. Gonçalves, C.E.F. Astro, J.A. Azevedo Filho, G.M. Dias-Tagliacozzo |
| Keywords: | Tropical plants, plant domestication, adaptability |
| Abstract:
Eighteen species of Costus, nine of them naturally occurring in Brazil, were maintained during a period of 24 months. They were evaluated plant development parameters such as: a) stem and leaves characteristics (position, hairiness, brightness and distribution); b) flowering (plant age and duration); c) occurrence of pest diseases; d) adaptation to drought and shade conditions; and e) plant vigor, as an overall measure of adaptation to indoor cultivation. The species of natural occurrence in Brazil evaluated were: C. amazonicus (Loesener) Macbride, C. arabicus Linnaeu, C. comosus (Jacquin) Roscoe, C. cuspidatus N. E. Brown, C. productus Schumann, C. lanceolatus O. G. Petersen, C. lasius Loesener, C. scaber Ruiz & Pavón, C. spiralis (Jacquin) Roscoe. The other species evaluated were: C. barbatus Suesseng., C. curvibracteatus Mass, C. erythrophyllus Loes., C. laevis Ruiz & Pavón, C. malortianus Wendl., C. pictus D. Don., C. speciosus (Koening) Sm., C. spicatus (Jacq.) Sw., e C. stenophyllus Standley & J.L. Williams. The result showed that the most adapted species for indoor plant cultivation were: C. curvibracteatus, C. amazonicus, C. erythrophyllus, C. malortianus, C. cuspidatus and C. lasius. | |
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