EVALUASI APLIKASI BEBERAPA MIKROBA PLANT GROWTH PROMOTING RHIZOBACTERIA (PGPR) TERHADAP PENEKANAN Ganoderma boninense PADA BIBIT KELAPA SAWIT Elaeis guineensis Jacq

RIZKI, RISA AMELIA and Mulawarman, Mulawarman and Arinafril, Arinafril (2019) EVALUASI APLIKASI BEBERAPA MIKROBA PLANT GROWTH PROMOTING RHIZOBACTERIA (PGPR) TERHADAP PENEKANAN Ganoderma boninense PADA BIBIT KELAPA SAWIT Elaeis guineensis Jacq. Undergraduate thesis, Sriwijaya University.

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Abstract

Palm oil (Elaeis quinensis Jacq.) Is a source of food oil, industrial oil, and biofuels (biodiesel) which is the main and leading agricultural commodity in Indonesia. One type of disease that attacks palm oil seedlings is stem rot caused by fungus Ganoderma boninense. This disease is a soil-borne pathogen that infects the roots and causes decay at the base of the stem, causing dry rot on the inner tissues. The purpose of this study was to determine whether microbial growth growth promoting rhizobacteria (PGPR) can suppress the growth of fungus Ganoderma boninense in oil palm nurseries. This research was conducted from September to January 2019 in the Greenhouse Department of Plant Pests and Diseases and the Nematology Laboratory of the Faculty of Agriculture of Sriwijaya University, Indralaya. This study used a completely randomized design (CRD) method consisting of 6 treatments, namely control (-), control (+), Fungicide, Trichoderma Mushroom, Pseudomas Bacteria, and Trichoderma + Pseudomonas Bacteria. Attack symptoms begin to appear in the fifth week, the attack symptoms that are raised are the presence of yellow spots from the leaves, the plant looks chlorosis and dries. The percentage of damage caused by Ganoderma boninense is small and very slow, but the control treatment (+) gets the highest percentage of damage compared to the others. From the results of the study it is known that Trichoderma Mushroom and PGPR Bacteria can suppress the growth of fungus Ganoderma boninense. The persistence of microbes found after 7 months of application is 8.4 × 105 phosphate solvent bacteria and 4 × 103 Trichoderma fungi. The highest plant growth was found in P5 with an average of 54.17 and the lowest plant height at P3 was 51.86 cm, indicating that the antagonistic bacteria Pseudomonas fluorescens was instrumental in accelerating plant growth faster.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Oil palm, Ganoderma boninense, Trichoderma, PGPR Bacteria.
Subjects:	S Agriculture > SB Plant culture > SB621-795 Plant pathology
Divisions:	05-Faculty of Agriculture > 54211-Agricultural Technology (S1)
Depositing User:	Users 3361 not found.
Date Deposited:	26 Nov 2019 08:36
Last Modified:	26 Nov 2019 08:41
URI:	http://repository.unsri.ac.id/id/eprint/18600

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