Influence of humus substances on the toxic effect of 2-methyl-4-chlorphenoxyacetic acid
作者: Jarmila PlchotováZ. Laštůvka
作者单位: 1Departement of Plant Physiology, Faculty of Science, J. E. Purkyně University
刊名: Biologia Plantarum, 1971, Vol.13 (3), pp.174-183
来源数据库: Springer Nature Journal
DOI: 10.1007/BF02933633
原始语种摘要: Abstract(#br)Effect of humus fractions on the toxicity of 2-methyl-4-chlorphenoxyacetic acid (MCPA) was examined in water cultures. Humus fractions and different MCPA quantities were added to Richter's nutrient solution used for maize ( Zea mays L., cv. Kočovská raná) cultivation. The results show that MCPA and humus substances in the applied concentrations intensively influence the maize root system, especially the rhizodermis and apical meristem cells. MCPA reduces ion absorption, induces phosphorus excretion from root, reduces tissue hydratation and relatively quickly kills these cells, at the end stage and/or in the highest concentration. Humus fractions have an unambiguously positive effect on these processes, they increase the cell vitality. When humus substances are applied, the...
全文获取路径: Springer Nature  (合作)
影响因子:1.692 (2012)

  • effect 效应
  • methyl 甲基
  • toxic 有毒的
  • humus 腐殖质