Publication Date
1985
Location
Kyoto Japan
Description
Two months old red clover and bromegrass stands were tested for flooding behaviour. Experimental design simulated the environmental conditions of summer, early and late autumn. Stands with normal watering and in anoxia had daylength and temperature conditions of+ 18°C/16 h, + l0°C/12 h and +4°C/8 h during the first, second and third week. Plants were analyzed at the end of each period. In anoxia the peak of ADH-activity of both species was reached at + l0°C/12 h representing the most hermful conditions predominantly for red clover survival. During the hardening period ( +4°C/8 h) the ADH-activity of roots of both species decreased significantly both in aerobic and anaerobic conditions. The malate content of red clover and bromegrass roots decreased in anoxia. However, the increase in ADH-activity and the decrease of the malate concentration in red clover roots were both greater than the corresponding changes in bromegrass roots. TNC-content of the stidied red clover roots showed that the glycolysis could not be maintained due to the inability of the plant in mobilizing the starch supplies. In bromegrass roots the soluble fructosans were easily mobilized to maintain a higher energy level required for plant survival.
Citation
Pulli, Seppo and Vaisanen, Jaana, "Effects of Flooding on the Metabolism of Red Clover (Trifolium pratense) and Bromegrass (Bromus inermis)" (1985). IGC Proceedings (1985-2023). 25.
(URL: https://uknowledge.uky.edu/igc/1985/ses3/25)
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Effects of Flooding on the Metabolism of Red Clover (Trifolium pratense) and Bromegrass (Bromus inermis)
Kyoto Japan
Two months old red clover and bromegrass stands were tested for flooding behaviour. Experimental design simulated the environmental conditions of summer, early and late autumn. Stands with normal watering and in anoxia had daylength and temperature conditions of+ 18°C/16 h, + l0°C/12 h and +4°C/8 h during the first, second and third week. Plants were analyzed at the end of each period. In anoxia the peak of ADH-activity of both species was reached at + l0°C/12 h representing the most hermful conditions predominantly for red clover survival. During the hardening period ( +4°C/8 h) the ADH-activity of roots of both species decreased significantly both in aerobic and anaerobic conditions. The malate content of red clover and bromegrass roots decreased in anoxia. However, the increase in ADH-activity and the decrease of the malate concentration in red clover roots were both greater than the corresponding changes in bromegrass roots. TNC-content of the stidied red clover roots showed that the glycolysis could not be maintained due to the inability of the plant in mobilizing the starch supplies. In bromegrass roots the soluble fructosans were easily mobilized to maintain a higher energy level required for plant survival.
