Peltophorumdubiumseedsweresettoimbibewithfourtreatments,soakedwithsolutionCaptan0.2%under10and27℃,PEG6000-1.0MPaunder10and27℃.Foreachtreatmenttherewerefourreplicateswith40seedsincubatedin9-cmPetridisheswithdoublefilterpapermoistenedwithtestingsolution.Theimbibitioncurvesshowedthatthefinalweightincreasewerefrom70%to150%inthetreatmentswhenimbibitionenteredalagphase.Seedsweretestedforeffectsongerminationoffivetreatments:controlgroup(nonprimed),primedwithPEG6000-1.0MPaat10and27℃,primedwithCaptan0.2%at10and27℃.Foreachtreatment,therewerethreesub-treatments:seedsweresoakedindistilledwaterfor12,24and36hbeforetheenergytest.GerminationpercentagesofnonprimedseedsandprimedinPEG27℃soakedindistilledwaterduring12hwerethehighest,reaching100%.ThelowestgerminationpercentageoccurredprimedseedswithPEG600027℃andsoakedindistilledwaterduring36h,whichwasonly52%.GerminationmeantimeofprimedseedsinPEGat10℃,soaked24hwas1.08days,meantimeofprimedseedsinPEGat27℃soaked12hwas2.42days.Acceleratedageingresultsshowedlowornogerminationafterageing72h.Controlgrouphadahighergerminationpercentageandseedsweremoreresistanttodeteriorationthanthoseinprimedgroups,bothinPetridish(27℃)andvermiculate(roomtemperature).
