Počet záznamů: 1

Different types of N nutrition and their impact on endogenous cytokinin levels in Festulolium and Trifolium pratense L

  1. 1.
    0365272 - UEB-Q 2012 RIV CZ eng J - Článek v odborném periodiku
    Neuberg, M. - Pavlíková, D. - Žižková, Eva - Motyka, Václav - Pavlík, Milan
    Different types of N nutrition and their impact on endogenous cytokinin levels in Festulolium and Trifolium pratense L.
    Plant, Soil and Environment. Roč. 57, č. 8 (2011), s. 381-387 ISSN 1214-1178
    Grant CEP: GA MZe QH71077; GA ČR(CZ) GAP506/11/0774
    Výzkumný záměr: CEZ:AV0Z50380511
    Klíčová slova: poaceae * fabaceae * N nutrition
    Kód oboru RIV: GD - Hnojení, závlahy, zpracování půdy
    Impakt faktor: 1.078, rok: 2011
    http://www.agriculturejournals.cz/publicFiles/44520.pdf http://www.agriculturejournals.cz/publicFiles/44520.pdf

    This study aims to reveal the effects of two various systems of nitrogen nutrition (sidedress application or injection application) on toxicity of NH4+ and mixed nutrition. We investigated whether NH4+ or NH4NO3 application causes significant changes in the endogenous levels of cytokinins (CK), whole plant N and their effects on yield of selected plants. Ammonium sulphate or ammonium nitrate were used as N source in the pot experiment. The yield of Festulolium and Trifolium pratense L. was more substantially enhanced after sidedress application of both ammonium sources in comparison with injection application. The accumulation of CKs in plants is in correlation with their N status. Proportions between individual CK forms remained relatively steady and their dynamics exhibited similar trends after N application. Our results indicate that the negative effect of the application of NH4+ on the growth of Festulolium and clover plants could be effectively modulated by presence of NO3−.
    Trvalý link: http://hdl.handle.net/11104/0200555