01485nam a2200337 a 450000100080000000500110000800800410001910000220006024501010008226000450018330000100022850000180023852006210025665000140087765000130089165000160090465000120092065000100093265000160094265000110095865000150096965000120098465000170099665000190101365000160103265000290104865000120107765000160108965300150110565300270112017629122018-12-04       1998    bl uuuu  m   00u1 u    #d1 aNASCIMENTO, W. M.  aInvolvement of ethylene and endo-Beta-mannanase in lettuce seed germination at high temperature.  aGainesville: University of Floridac1998  a138p.  aPh.D. Thesis.  aThe objetive of this research was to investigate the involvement of ethylene and the enzyme endo-B-mannanase in lettuce seed germination under high temperature conditions. In an attempt to elucidate the relationship between these factors, several approaches were taken. These were: 1) studyng the interaction between light and temperature on seed germination; 2) testing genotypes that have exhibited different capacities to germinate at high temperature; 3) verifying the seed priming effect; 4) using inhibitors of ethylene synthesis and action during seed germination; and 5) comparing different seed lot quality.  aendosperm  aethylene  agermination  alettuce  aseeds  atemperature  aAlface  aEndosperma  aEtileno  aGerminação  aLactuca Sativa  aMaturação  aRegulador de Crescimento  aSemente  aTemperatura  aMaturation  aPlant growth substance