Effects of Water Soaking and Heating Duration on Seed Quality of Oil Palm (Elaeis quineensis Jacq.)
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Abstract
Breaking the dormancy of oil palm seeds by heat treatment relies on controlling seed moisture content and maintaining ambient temperature at an optimum level. A study on the effects of water soaking and heating duration on the seed quality of oil palm was conducted using a 3 x 4 factorial experiment in a completely randomized design (CRD). Two factors were tested, i.e., factor A-water soaking duration at three levels (3, 5, and 7 days), and factor B-heating duration at 39±1 ๐C at four levels (30, 40, 50, and 60 days). The results showed that water soaking for 7 days followed by heating for 60 days produced the highest seed quality, with the highest germination percentage (66.00 %) and maximum premium germinated seed (57.75 %). Seed germinated the fastest under this treatment, with the lowest mean germination time of 14.98 days, a high germination speed index of 4.51, and the greatest shoot length of premium germinated seed at 11.23 mm. Therefore, soaking seeds for 7 days and heating at 39±1 ๐C for 60 days is an effective alternative method for breaking dormancy of oil palm seeds through heat treatment.
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References
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