creators_name: Ridho Asmara, 1514121046
creators_id: -
type: other
datestamp: 2022-03-22 04:47:06
lastmod: 2022-03-22 04:47:06
metadata_visibility: show
title: KEMELIMPAHAN DAN KARAKTERISASI BAKTERI RIZOSFER
TANAMAN KELAPA SAWIT DI PT BUMITAMA GUNAJAYA AGRO

KALIMANTAN TENGAH
ispublished: pub
subjects: S1
full_text_status: restricted
abstract: Kelapa sawit (Elaeis guineensis Jacq.) merupakan salah satu tanaman industri perkebunan
utama di Indonesia. Produktivitas tanaman kelapa sawit di Indonesia sebenarnya masih dapat
dioptimalkan, namun masih terdapat berbagai kendala yang salah satunya berasal dari
penyakit busuk pangkal batang yang disebabkan oleh jamur Ganoderma Boninensea.
Kemampuan G. boninense dalam menginfeksi tanaman kelapa sawit sangat dipengaruhi oleh
kemelimpahan dan keragaman bakteri yang terdapat pada daerah rizosfer. Penelitian ini
bertujuan untuk mengetahui kemelimpahan dan karakterisasi bakteri di rizosfer tanaman
kelapa sawit pada beberapa lokasi di PT Bumitama Gunajaya Agro, Kalimantan Tengah.
Pengamatan dilakukan dengan menghitung jumlah populasi bakteri dan dibedakan
berdasarkan bentuk dan warnanya. Selain itu dilakukan juga uji karakteristik lainnya seperti
uji gram, uji oksidatif fermentatif (O/F), uji softrot, uji hipersensitif dan uji hipovirulen.

Ridho Asmara

Hasil penelitian menunjukan bahwa didapatkan sebanyak 161 isolat bakteri dengan jumlah
populasi bakteri yang berbeda. Jumlah populasi terbanyak didapatkan pada wilayah PNBE
dengan jenis tanah ultisol sebanyak 15,99 X 107 CFU/g tanah dan jumlah populasi terendah
pada wilayah PAGE dengan jenis tanah histosol sebanyak 7,33 X 107 CFU/g tanah. Bentuk
morfologi koloni bakteri yang didapatkan yakni bulat dan tidak beraturan dengan warna
koloni merah, putih, merah muda, kuning dan putih keruh. Sebagian besar bakteri 58,8%
bersifat gram negatif, 82% bereaksi fermentatif, 63,4% bersifat hipersensitif negatif, 80,1%
bersifat softrot negatif dan 91,2% bersifat hipovirulen.

Kata kunci: Isolat bakteri, Kelapa sawit (Elaeis guineensis Jacq.), Rizosfer.
The palm oil (Elaeis guineensis Jacq.) is the one of main plantation crops industry in
Indonesia. The production of palm oil in Indonesia still be optimized, however there is
numerous obstacles , which is Ganoderma Boninensea fungus that caused of stem rotten
disease. The ability of G. boninense to infected palm oil plant was greatly influenced by
abundance and diversity of bacteria that found in the rhizospher area. This research aims to
know abundace and characterization of bacteria in rhizospher palm oil in several locations in
PT Bumitama Agro Gunajaya , Central of Kalimanan. The observation was done by counting
the number of populations of bacteria and by distinguished on the basis of form and colors.
The oxidative fermentative gram (O/F) test, softrot test, hypo virulent test and hypersensitive
were as additional test.

The results of the study showed that many of 161 bacteria isolates obtained by the number of
different bacterial populations. The highest population numbers obtained in the territory with
a PAGE ultisol soil type was 15,99 X 107 CFU/g soil and the lowest population numbers in
the territory PAGE with histosol soil type was 7,33 X 107 CFU/g soil. The form of the

Ridho Asmara

bacterial colony morphology obtained was rounded and irregular colonies with the color red,
white, pink, yellow and white turbid. Most of bacteria were 58.8% Gram-positive, 82%
fermentative, 63.4% reacted overwhelmingly negative in hypersensitive test, 80.1% negative
in softrot and 91.2% was hypovirulen.

Keywords: isolates of bacteria, rhizopher, palm oil (Elaeis guineensis Jacq.).
date: 2019
date_type: published
publisher: FAKULTAS PERTANIAN
place_of_pub: UNIVERSITAS LAMPUNG
citation:   Ridho Asmara, 1514121046  (2019) KEMELIMPAHAN DAN KARAKTERISASI BAKTERI RIZOSFER TANAMAN KELAPA SAWIT DI PT BUMITAMA GUNAJAYA AGRO KALIMANTAN TENGAH.  FAKULTAS PERTANIAN, UNIVERSITAS LAMPUNG.     
document_url: http://digilib.unila.ac.id/55317/1/1.%20ABSTRAK.pdf
document_url: http://digilib.unila.ac.id/55317/2/2.%20SKRIPSI%20FULL.pdf
document_url: http://digilib.unila.ac.id/55317/3/3.%20SKRIPSI%20FULL%20TANPA%20BAB%20PEMBAHASAN.pdf