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The direct and indirect effects of nitrogen shortage on photosynthesis and transpiration in maize and sunflower

By: Contributor(s): Material type: ArticleArticleLanguage: En Publication details: 1979Subject(s): DDC classification:
  • 80-567915
 In: Netherlands Journal of Agricultural Science v. 27, no. 3, p. 227-23480-567915Summary: Experiments were carried out to investigate the effect of nitrogen shortage in the leaf tissue on stomatal behaviour. The results show that in maize a linear relation exists between the rate of net CO(,2) assimilation and the conductance for water vapour, independently of the nitrogen status of the tissue. In sunflower a similar relation exists although the evidence is less conclusive. It is concluded that stomatal behaviour cannot explain differences in water use efficiency between plants, growing at different levels of nitrogen
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6 ref.; Summary (En)

Experiments were carried out to investigate the effect of nitrogen shortage in the leaf tissue on stomatal behaviour. The results show that in maize a linear relation exists between the rate of net CO(,2) assimilation and the conductance for water vapour, independently of the nitrogen status of the tissue. In sunflower a similar relation exists although the evidence is less conclusive. It is concluded that stomatal behaviour cannot explain differences in water use efficiency between plants, growing at different levels of nitrogen

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