UTILIZATION OF ENDOPHYTIC BACTERIA TO IMPROVE THE OIL PALM (Elaeis guineensis Jacq.) SEEDLINGS GROWTH

  • Fandi Hidayat Indonesian Oil Palm Research Institute
  • Suroso Rahutomo Indonesian Oil Palm Research Institute
  • Rana Farrasati Universitas Brawijaya
  • Iput Pradiko Indonesian Oil Palm Research Institute
  • Muhdan Syarovy Indonesian Oil Palm Research Institute
  • Edy Sigit Sutarta Indonesian Oil Palm Research Institute
  • Wiwik Eko Widayati Pusat Penelitian Perkebunan Gula Indonesia
Keywords: endophyte bacteria, urea, oil palm seedlings, relative agronomy effectiveness (RAE), endophyte bacteria, urea, oil palm seedlings, relative agronomy effectiveness (RAE)

Abstract

Endophyte bacteria are microorganisms that live within plant tissue, harmless to the host plants, and usually contribute to plant health. Some of the endophytes are proved to be able to enhance plant growth by nitrogen fixation, phytohormones production such as indole acetic acid (IAA) and cytokines. This study aims to observe the influence of endophytic bacteria on the oil palm seedlings growth, nutrient absorption, and its potential on reducing the use of chemical fertilizer. The study was carried out in oil palm nursery at Aek Pancur substation since 3-monthsold until 9-monthsold. Treatments were arranged by using randomized completely block design (RCBD) with six treatments and repeated four times. The treatments are: (1) control; (2) 100% chemical fertilizer (standard); (3) 25% of urea dosage + inoculation of endophyte bacteria (B1N25); (4) 50% of urea dosage + inoculation of endophyte bacteria (B1N50); (5) 75% of urea dosage + inoculation of endophyte bacteria (B1N75); and (6) 100% of urea dosage + inoculation of endophyte bacteria (B1N100). The result showed that B1N75 was the best treatment indicated by higher relative agronomy effectiveness (RAE) up to 5.5% compared to standard.  On the other hand, its growth and biomass production were also equal to standard treatment. It means that application of endophyte bacteria could reduce the use of inorganic nitrogen fertilizer (Urea) up to 25%.

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Author Biographies

Suroso Rahutomo, Indonesian Oil Palm Research Institute
Iput Pradiko, Indonesian Oil Palm Research Institute
Muhdan Syarovy, Indonesian Oil Palm Research Institute
Edy Sigit Sutarta, Indonesian Oil Palm Research Institute
Published
2018-08-01