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1991 (1)
1Author    R. E. Wilkinson, R. R. DuncanRequires cookie*
 Title    Oxabetrinil Reversal of Metolachlor and Acid Soil Stress  
 Abstract    M etolachlor and excess M n:+ (acid soil stress) induce alterations in gibberellin precursor biosynthesis that can explain the morphological responses to these physiological stresses. O xa­ betrinil protects sorghum [Sorghum bicolor (L.) Moench] from the influence o f metolachlor and excess M n2+. Sorghum cultivar variations in response to excess M n2+ are explicable as dif­ ferential rates o f tvjf-kaurene biosynthesis between acid soil sensitive and tolerant cultivars. Concentrations o f M n2+ present in vegetative leaves and reproductive stem tissues were not different. Therefore, cultivar differences in e«/-kaurene biosynthesis explain the acid soil toler­ ance differences rather than differential M n2+ absorption, translocation, and/or compartmen-tation. M etolachlor and safener responses are found in cellular compartments and tissues that do not match a decreased herbicide concentration through absorption, transport, or degrada­ tion as a sole mode o f action for safeners. 
  Reference    Z. Naturforsch. 46c, 950 (1991); received March 26 1991 
  Published    1991 
  Keywords    Oxabetrinil, M etolachlor, Acid Soil Stress, Manganese, Isoprenoid Synthesis 
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 TEI-XML for    default:Reihe_C/46/ZNC-1991-46c-0950.pdf 
 Identifier    ZNC-1991-46c-0950 
 Volume    46