Folia Geobotanica et Phytotaxonomica

, Volume 6, Issue 3, pp 233–254 | Cite as

Productivity and root/shoot ratio of reedswamp species growing in outdoor hydroponic cultures

  • Dagmar Dykyjová
  • Karel Véber
  • Karel Pribáň


The study of the annual productivity of some reedswamp species grown in hydroponic sand cultures is described. The plants were cultivated in the open in a mixture of diatomite earth and sand, and irrigated periodically with a nutrient solution. The cultivation tanks were arranged in tiers to enable a continuous passage of the nutrient solution through the rooting medium. The plants were grown from small rhizome cuttings or seedlings one year old. Harvests at intervals of 1 to 3 years made it possible to follow and assess in quantitative terms the dry matter production of both aerial (shoots) and underground organs (“Root/Shoot” Ratio) and the annual dry weight increase of the underground biomass of these perennial species. The research included macro- and microclimatological measurements of temperature (air, substrate), humidity and incident (global) solar radiation. The annual productivity and the efficiency of incident solar energy utilization in the yields of cultivated reedswamp species are compared with corresponding values of the same species in natural stands. The values of production (standing crop), net annual productivityC, and the coefficient of solar energy conversion η were very high, surpassing in several cases those of natural habitats. The significance of these findings is discussed.


Nutrient Solution Natural Stand Hydroponic Culture Folia GEOBOTANICA Underground Organ 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Academia 1971

Authors and Affiliations

  • Dagmar Dykyjová
    • 1
  • Karel Véber
    • 1
  • Karel Pribáň
    • 1
  1. 1.Botanical Institute of the Czechoslovak Academy of SciencesTřeboň

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