Publication Date
1985
Location
Kyoto Japan
Description
Digitaria eriantha (Steud) subsp. eriantha plants were grown under controlled conditions and treated with different forms and concentrations of nitrogen in order to determine its effect on photosynthetic activity. Single leaf and whole plant net photosythetic rates were meaured and appeared to vary according to the units in which the activity was expressed. Although single leaf photosynthesis was measured on young leaves, near the meristematic tip, the rates had decreased to very low levels by the fourth of month of treatment, irrespective of the mode of expression used. A similar trend was observed when the whole plant net photosythetic rates were measured. Application of nitrogen particularly in the nitrate form did not appear to enhance the photosynthetic rates uncless these expressed on a net carbon dioxide uptake per plant basis.
Citation
Wolfson, M M. and Cresswell, C F., "The Response of Photosynthesis in Digitaria eriantha (Steud) Subsp. Eriantha to the Application of Different Forms and Concentrations of Nitrogen" (1985). IGC Proceedings (1985-2023). 4.
(URL: https://uknowledge.uky.edu/igc/1985/ses3/4)
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
The Response of Photosynthesis in Digitaria eriantha (Steud) Subsp. Eriantha to the Application of Different Forms and Concentrations of Nitrogen
Kyoto Japan
Digitaria eriantha (Steud) subsp. eriantha plants were grown under controlled conditions and treated with different forms and concentrations of nitrogen in order to determine its effect on photosynthetic activity. Single leaf and whole plant net photosythetic rates were meaured and appeared to vary according to the units in which the activity was expressed. Although single leaf photosynthesis was measured on young leaves, near the meristematic tip, the rates had decreased to very low levels by the fourth of month of treatment, irrespective of the mode of expression used. A similar trend was observed when the whole plant net photosythetic rates were measured. Application of nitrogen particularly in the nitrate form did not appear to enhance the photosynthetic rates uncless these expressed on a net carbon dioxide uptake per plant basis.
