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Different types of N nutrition and their impact on endogenous cytokinin levels in Festulolium and Trifolium pratense L
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SYSNO ASEP 0365272 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Different types of N nutrition and their impact on endogenous cytokinin levels in Festulolium and Trifolium pratense L Author(s) Neuberg, M. (CZ)
Pavlíková, D. (CZ)
Žižková, Eva (UEB-Q) ORCID
Motyka, Václav (UEB-Q) RID, ORCID
Pavlík, Milan (UEB-Q) RID, ORCIDSource Title Plant, Soil and Environment. - : Česká akademie zemědělských věd - ISSN 1214-1178
Roč. 57, č. 8 (2011), s. 381-387Number of pages 7 s. Language eng - English Country CZ - Czech Republic Keywords poaceae ; fabaceae ; N nutrition Subject RIV GD - Fertilization, Irrigation, Soil Processing R&D Projects QH71077 GA MZe - Ministry of Agriculture (MZe) GAP506/11/0774 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z50380511 - UEB-Q (2005-2011) UT WOS 000293896800005 Annotation 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−. Workplace Institute of Experimental Botany Contact David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Year of Publishing 2012
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