Full TGIF Record # 35411
Item 1 of 1
Publication Type:
i
Refereed
Author(s):Utrillas, M. J.; Alegre, L.; Simon, E.
Author Affiliation:Department of Plant Biology, Unit of Plant Physiology, Faculty of Biology, University of Barcelona, Barcelona, Spain
Title:Seasonal changes in production and nutrient content of Cynodon dactylon (L.) Pers. subjected to water deficits
Source:Plant and Soil. Vol. 175, No. 1, August 1995, p. 153-157.
# of Pages:5
Publishing Information:Dordrecht, Netherlands: Kluwer Academic Publishers
Related Web URL:http://link.springer.com/article/10.1007/BF02413021
    Last checked: 10/14/2015
    Notes: Abstract only
Keywords:TIC Keywords: Cynodon dactylon; Nutrients; Osmotic potential; Seasonal variation; Water deficit; Plant development
Abstract/Contents:"Seasonal changes in water relations, production and mineral composition were studied in a sward of Cynodon dactylon (L). Pers. subjected to water deficits during a dry summer, and at recovery in autumn. The experiment was carried out under Mediterranean field conditions. Water deficits during summer reduced total dry matter production by 60%, but in autumn there were no differences between treatments. Compared to well-watered sward, the sward grown under drought showed no increase in potassium, calcium and nitrogen of 55, 10 and 10% respectively. These differences decreased with the arrival of autumn rains. Leaf osmotic potential fell during the dry summer to -2.8 MPa in well-watered plants and to -4.2 MPa in stressed plants. In autumn there were no differences between treatments. Nevertheless, relative water content only decreased to 0.86 in droughted plants. In summer potassium contributed to the osmotic adjustment. In contrast, under water deficits a decrease of 71% in sodium and, to a lesser but significant extent decreases in phosphorus, magnesium and chlorine was observed. Nitrogen, phosphorus and sulphur showed low concentrations during summer and increased in autumn."
Language:English
References:0
Note:Tables
Figures
20
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Utrillas, M. J., L. Alegre, and E. Simon. 1995. Seasonal changes in production and nutrient content of Cynodon dactylon (L.) Pers. subjected to water deficits. Plant Soil. 175(1):p. 153-157.
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