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    STUDIA BIOLOGIA - Ediţia nr.2 din 2002  
         
  Articol:   THE GROWTH AND SEED PRODUCTION OF SOYBEAN PLANTS CULTIVATED ON MINE SPOILS.

Autori:  SILVIA ONAC.
 
       
         
  Rezumat:  The growth and seed production of two soybean (Glycine max) cultivars, Agat and Diamant, cultivated in mine spoils from Cavnic (Baia Mare mining area, Romania) were studied, under field conditions. Three experimental variants were organised: V1 control (unpolluted soil), V2 50% spoils+50% unpolluted soil, V3 100% spoils. No fertilizers have been added to any of the cultivation substrata. Seed germination was not affected by the heavy metals in spoils. The growth of both soybean cultivar plants cultivated in 100% spoils, as well as the root elongation, were strongly inhibited, and the amount of dry matter in the leaves increased. The plants cultivated in 50% spoils had the best growth. In all three cultivation variants the Agat cv. plants had a better growth in the first part of the vegetation cycle, later being overtopped by the Diamant cv. plants. For both soybean cultivars grown in 100% spoils, the number of pods and seeds was very low. The plants grown in 50% spoils had a high number of pods and seeds, but an increased percentage of undeveloped seeds.  
         
     
         
         
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