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Potential Endophytic Bacteria Isolates Producing IAA from West Sumatera to Improve the Growth of Oil Palm (Elaeisguineensis Jacq.) at Main Nursery
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| Author:
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ROVER , RENI MAYERNI, YULMIRA YANTI, AUZAR SYARIF
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| Abstract:
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Endophytic bacteria, which can produce IAA and have the potential to improve oil palm growth at the main nursery, were isolated from the roots of oil palm in West Sumatera. Out of 4 isolates, 2 isolates (SBS2.E.34 and SBS1.E.18) showed a better effect on promoting oil palm seedlings' growth than other isolates and control. Isolate SBS2.E.34 and SBS1.E.18 produced 0,48 and 0,60 ppm IAA, respectively. The experiment was conducted using oil palm seedlings at the main nursery from age 4 until 12 months. Introduction of endophyte bacteria producing IAA resulted in the increased height of oil palm seedlings (from 80.96cm to 106.28 and 109.18 cm), the number of leaves (from 11.20 to 12.80 and 13.40), fresh root weight ( from 149.31 gram to 186.86 gram and 200.51 gram), and root dry weight (from 39.68 gram to 52.76 gram and 55.92 gram) compared to the control. A field study is necessary to obtain alternative plant growth-promoting bacteria (PGPB).
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| Keyword:
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Endophytic, Bacteria, Indigenous, IAA, Oil Palm.
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| EOI:
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| DOI:
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https://doi.org/10.31838/ijpr/2020.12.04.570
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| Download:
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