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The content of beta-sitosterol in maize plants under different nitrogen nutrition
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SYSNO ASEP 0338340 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title The content of beta-sitosterol in maize plants under different nitrogen nutrition Author(s) Pavlíková, D. (CZ)
Pavlík, Milan (UEB-Q) RID, ORCID
Balík, J. (CZ)Source Title Proceedings of the International Plant Nutrition Colloquium XVI, Section C. - California : University of California, 2009 / Abadia J. ; Schjoerring J. K. Pages s. 1-5 Number of pages 5 s. Action International Plant Nutrition Colloquium /16./ Event date 26.08.2009-30.08.2009 VEvent location Sacramento Country US - United States Event type WRD Language eng - English Country US - United States Keywords sterols ; phytosterols ; HPLC Subject RIV CB - Analytical Chemistry, Separation R&D Projects 1G58027 GA MZe - Ministry of Agriculture (MZe) 2B06024 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) GA521/09/1150 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z50380511 - UEB-Q (2005-2011) Annotation The effect of nitrogen nutrition on phytosterol content in aboveground biomass of maize (Zea mays L.) was investigated in a pot experiment. For cultivation of maize plants nitrogen dose (2 or 4 g N per pot) was applied in the form of ammonium nitrate (AN) for control treatments or urea ammonium nitrate solution (UAN). UAN solution was applied according to the CULTAN method (Controlled Uptake Long Term Ammonium Nutrition). The lower nitrogen content in soil of UAN treatments in the first period of experiment and in following nitrogen application (30 days after maize sowing) affected yield and also total nitrogen content of aboveground biomass. The results of free ß-sitosterol analyses by HPLC showed the changes of its concentration after UAN application in contrast to AN treatments. The significant decrease of ß-sitosterol concentration (by 48 % in contrast to 1st period) was determined on UAN2 treatment in the 2nd period (8 days after nitrogen application). Workplace Institute of Experimental Botany Contact David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Year of Publishing 2010
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