Pengembangan Metode Pengusangan Cepat Kimia pada Benih Pepaya (Carica papaya L.)

Tri Ayu Pratiwi, Muhamad Rahmad Suhartanto, Abdul Qadir


Indonesia needs quality improvement for papaya fruits to increase its exportquantity and value. Seed quality is one that affect quality of fruits. Estimation of vigor storability is necessary for maintaining seed quality. Chemical accelerated aging method using ethanol has several advantages in predicting vigor storabilityof seeds. Seed aging (devigoration) during the aging process affected by soaking duration and aging duration. This research aims to determine the optimum soaking duration dan aging duration for chemical accelerated aging on papaya seed. This research consists of two experiments. Experiment 1 is determination of aging duration with treatment 0, 1x30, 2x30, 3x30, and 4x30 minutes aging. Experiment 2 is determination of soaking duration with treatment 24, 48, 72, 96, and 120 hours soaking. Experiment 1 showed that aging duration 48 minutes can reduce 50% germination of Callina papaya seed. Experiment 2 showed that the optimum soaking duration is 48 hours. This method produces germination before aging 77.1% and after aging 38.4% with angle of regression line 38.9° and moisture content about 64-66%.

Keywords: callina, devigoration, ethanol, germination, soaking duration

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