YANUARIUS MAU Pengarang Yosefina Lewar, SP., MP Dosen Pembimbing 1 Lena Walunguru, SP., M.Si Dosen Pembimbing 2 Ir. Ali Hasan., M. Si Penguji 1 Ester R. Jella, SP, MP Penguji 2

Thisstudywasaimed:1)tofindouttheinfluenceofsubmersion timeofzalaccaseedinacidsulphatesolution(H2SO4)totheviabilityand growthofzalaccaseed:2)to knowing thebestsubmersiontimeof zalaccaseedinacidsulphatesolution(H2SO4)whogavethebestviability andgrowth.Thisstudywascarriedoutatthescreenhouseoffoodcrops and horticulture departmentofthe State Agriculture Polythecnic of Kupangwhobeganfrom JulytoOctober2018.Thedesignusedinthis studywasrandomizedblockcompletedesigned.Thetreatmentwhotried were25% ofconcetrationwiththesubmersiontimeofzalaccaseedin acidsulphatesolution(H2SO4)with7treatmentasfallows:W0:ithout treatment,W2:submersiontime10minutes,W3:submersiontime20 minutes,submersion time 30 minutes,submersion time 40 minutes, submersiontime50minutesandsubmersiontime60minutes.Each treamentrepeated4times.Theresultofthisresearchshowed:1)the durationofsubmersiontimeofzalaccaseedin25% ofH2SO4solution gaveveryrealeffecttotheviabilityandseedgrowth,and2)thebest durationofsubmersontimeofzalaccaseedinH2SO4solutionwasfor10 minuteswhogavethe82,50%ofgermination,velocityofgrow16,77%per day,andseedgrowattheageof10weeksafterplanteditisheightseed 21,67cm,amountofleaves3sheet,lengthandwidthleaves17,53cm and 7,50cm,amountofroots8,25sheetandlengthroots17,13cm. Keywords:Submersiontimeofzalaccaseed,H 2 SO 4, viability,seedgrowt