The effect of different nitrogen nutrition on proline and asparagine content in plant
2010
Neuberg, M.,Ceska Zemedelska Univ., Prague (Czech Republic). Fakulta Agrobiologie, Potravinovych a Prirodnich Zdroju | Pavlikova, D.,Ceska Zemedelska Univ., Prague (Czech Republic). Fakulta Agrobiologie, Potravinovych a Prirodnich Zdroju | Pavlik, M.,Akademie Ved, Prague (Czech Republic). Ustav Experimentalni Botaniky | Balik, J.,Ceska Zemedelska Univ., Prague (Czech Republic). Fakulta Agrobiologie, Potravinovych a Prirodnich Zdroju
Mixture of plants (Festulolium: Trifolium pratense) was grown in a pot experiment with different forms of nitrogen nutrition. The fertilizers (ammonium sulphate or calcium nitrate or ammonium nitrate) were applied conventionally or according to the CULTAN method (controlled uptake long term ammonium nutrition). The absolute growth rate (AGR) and concentrations of free asparagine and proline in the aboveground biomass were determined. Additional N increased the dry weight of biomass and AGR of the plants treated with sidedress application in comparison with plants treated with the CULTAN method. The results suggest increased levels of free proline in CULTAN-treated plants while those of asparagine did not increase. The significance of these observations to the loss of potential yield and the relationship between methods of application is considered.
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