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Feddes repertorium v.127 no.3/4, 2016년, pp.55 - 64  

Seasonal allocation of carbohydrates between above‐ and below‐ground organs of Typha domingensis

Eid, Ebrahem M. (Botany Department, Faculty of Science, Kafr El‐Sheikh University, Kafr El‐Sheikh, 33516, Egypt ) ; Shaltout, Kamal H. (Botany Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt ) ;
  • 초록  

    Seasonal carbohydrates allocation by Typha domingensis was evaluated to identify the potential physiological weaknesses in the growth cycle of this plant in Lake Burullus, Egypt. Monthly plant samples (February–October 2014) were separated into shoots, roots and rhizomes to evaluate the seasonal changes in water‐soluble carbohydrates (WSC), starch and total non‐structural carbohydrates (TNC) for each plant organ. The present study indicated that rhizomes are strong carbohydrates sink during the life cycle of T. domingensis . Starch represented the greatest part of the TNC pool, surpassing the concentration of WSC 1.8–4.3 times. The WSC, starch and TNC concentrations of T. domingensis below‐ground organs (rhizomes and roots) were high at the beginning of the vegetative period (February); they reached their minima in March to support the shoots growth, then were followed by a gradual increase due to the translocation from shoots. The time when T. domingensis is expected to be most susceptible to a management technique is at the point in the seasonal cycle when the stored carbohydrates are at the lowest (in March).


  • 주제어

    Carbohydrates allocation .   Lake Burullus .   Southern cattail .   Weed management .   Wetlands.  

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