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

Comm. Horticulturae Journal Pub Date : 2019-01-07 DOI:10.29244/CHJ.2.3.1-6

Trisnanti Ayu Pratiwi, M. Suhartanto, Abdul Qadir

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Abstract

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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木瓜种子(Carica papaya L)的快速化学处理方法的发展。

印度尼西亚需要改善番木瓜果实的质量，以增加其出口数量和价值。种子质量是影响果实品质的重要因素之一。活力贮藏性评价是保持种子品质的必要条件。乙醇化学加速老化法在预测种子活力贮藏性方面具有一定的优势。种子老化过程中的老化(变质)受浸渍时间和老化时间的影响。本研究旨在确定化学加速老化木瓜种子的最佳浸泡时间和老化时间。本研究由两个实验组成。实验1测定老化0、1 × 30、2 × 30、3 × 30、4 × 30分钟的时效时间。实验2是测定浸泡24、48、72、96和120小时的浸泡时间。试验1表明，老化时间为48 min，可使Callina木瓜种子萌发率降低50%。试验2表明，最佳浸泡时间为48 h。该方法陈化前发芽率为77.1%，陈化后发芽率为38.4%，回归线角度为38.9°，含水率为64-66%。关键词:callina，变质，乙醇，萌发，浸泡时间

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Comm. Horticulturae Journal

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