@article{Kovacevic:346462,
      recid = {346462},
      author = {Kovacevic, V. and Kadar, I. and Gagro, M.},
      title = {Maize Hybrids Under Soil Stress Conditions},
      address = {1997},
      series = {IFMA11},
      pages = {2},
      year = {1997},
      note = {Eleventh International Farm Management Congress,  University of Calgary, Canada, July 14-19, 1997},
      abstract = {Six maize (ZeamaysL.) hybrids (OsSK377, OsSK382, OsSK407,  OsSK552, OsSK644 and Bc66-6J) were grown under soil stress  conditions characterizing K-deficiency (strong K-fixing  soil), excesses of Ca and Mg and moderate supplies ofplant  available Fe andMn. Soil is characterized as drained  gleysol developed on calcareous loess substrate and its  chemical properties was as follows: pH in KCl 7.3; organic  matter content 2.4%; carbonate content 14.9%; exchangeable  Ca (NH4-Acetate extraction) 603 mgCa/100 and lightly  exchangeable Mg (CaCl2-extraction) 38 mg Mg/100 g. The ear-  leaf biometals status at silking stage of maize (July 1993)  were under significant genetic (hybrid as a factor)  influences. The ranges of the ear-leaf composition (mg/kg  of dry matter) were as follows: from 8300 to 10600 Ca, from  2570 to 3680 K (acute K deficiency), from 9200 to 11500 Mg  (oversupply of Mg), from 15.2 to 18.8 Mn (Mn deficiency),  from 20.5 to 25.4 Zn andfrom 131 to 164 Fe (low Fe supply).  Grain yields were in range from 1460 to 2470 kg/ha. The  Os377 (2470 kg/ha) and the Os382 (2140 kg/ha) were more  tolerant to soil stress in comparison with remaining four  hybrids (mean yield 1600 kg/ha). Their ear-leaf K status  (means 3490 and 2920 mgK/kg, for two more tolerant and four  less tolerant hybrids, respectively) could be in connection  with different degree of tolerance to soil stress.},
      url = {http://ageconsearch.umn.edu/record/346462},
      doi = {https://doi.org/10.22004/ag.econ.346462},
}