The STUDIA UNIVERSITATIS BABE┼×-BOLYAI issue article summary

The summary of the selected article appears at the bottom of the page. In order to get back to the contents of the issue this article belongs to you have to access the link from the title. In order to see all the articles of the archive which have as author/co-author one of the authors mentioned below, you have to access the link from the author's name.

 
       
         
    STUDIA PHYSICA - Issue no. 1 / 2004  
         
  Article:   ISOTOPIC COMPOSITION OF PLANT CARBON CORRELATES WITH WATER-USE EFFICIENCY.

Authors:  STELA CUNA, GABRIELA BALAS, O. COZAR.
 
       
         
  Abstract:  Agricultural productivity is limited by water availability. One solution to this problem is to select and breed plants requiring less water for growth, i.e. to increase water-use efficiency (WUE). We study the use of carbon isotope analysis from plant material as a tool for investigating WUE. For that purpose we have used the theoretical models relating stable carbon isotope discrimination () from leaf of the plant and WUE. The correlation between WUE and  was assessed in five plants: Malus domestica, Zea mays, Robinia pseudacacia, Juglans regia and Castanea nativa.  was determined by the analyze of carbon isotopic composition from leaves. Carbon from plant material was converted to CO2 by dry combustion in an excess of oxygen and then was analyzed for stable isotope ratio measurements by mass spectrometry. A negative correlation between WUE and  was established for these plants. It is suggested that carbon isotope analysis may be a useful tool in selection for improved water-use efficiency of some plant obtained "in vitro" by biotechnological processes.  
         
     
         
         
      Back to previous page