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Asmarlaili Sahar Hanafiah
Program Studi Agroekoteknologi Fakultas Pertanian, USU, Medan
Agriculture, Biological Sciences & Forestry

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Pertumbuhan dan Uji Gula Reduksi 5 Isolat Jamur Asal Batang Kelapa Sawit ke Potongan Batang Kelapa Sawit Poltak Mangatur Tua Sirait; Tengku Sabrina; Asmarlaili Sahar Hanafiah
Jurnal Pertanian Tropik Vol. 5 No. 1 (2018): JURNAL PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (611.288 KB) | DOI: 10.32734/jpt.v5i1.3138

Abstract

Fungi is a microorganism that has been widely used to accelerate the rate of decomposition of organic matter. This research was conducted in the soil biology laboratory of the Faculty of Agriculture, University of Sumatera Utara. This study was aimed to examine the potential of fungi isolates derived from palm oil trunks. This research begins by isolating the fungi contained in the cutting of oil palm trunk from the plant rejuvenation. The isolate is purified to obtain a pure culture. Selected isolates were identified by DNA sequencing using PCS 28s ITS and the results were identified as Rhizopus arrhizus Strain ATCC 111450 (A), Rhizopus microspores var rhozopodiformis Strain IFM 46417 (B) Syncephalastrum racemosum isolate VPCI 1857/11) (C), Trichoderma asperellum Strain ATCC 52438 (D), and Trichoderma asperellum Strain G (E). All isolates were applied to sterilized palm oil trunks. The results of this study were Rhizopus microspores var rhozopodiformis Strain IFM 46417 capable of growing well in pH 4, 6, and 8, Trichoderma asperellum Strain G (E) had the fastest growth rate of 64.58 mm / day. Test of cellulase enzyme production by using a method of Fehling A and B aiming at the fungus Trichoderma asperellum Strain G (E) produces the highest cellulase enzyme.
Uji Infektifitas dan Efektifitas Rhizobia sp. terhadap Tanaman Kedelai di Rumah Kasa pada Tanah Ultisol dengan pH yang Berbeda M. Reza Alfikri; Hardy Guchi; Asmarlaili Sahar Hanafiah
Jurnal Pertanian Tropik Vol. 5 No. 1 (2018): JURNAL PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (539.708 KB) | DOI: 10.32734/jpt.v5i1.3139

Abstract

Rhizobia fixed nitrogen from the air and supplied legume and effected to soil fertility. The research was conducted in May 2017 until November at Soil Biology Laboratory and Screen House of Agriculture Faculty University of Sumatera Utara. This research was carried out with 2 stages: growth test at various pH with isolate tested (TJA 1, TJA 2, TJA 3, BGR 1, BGR 2, BGR 3, BGR 4, BALAI 1, BALAI 2, BALAI 3, LP 1, LP 2, LP 3, LP 4 and LAB) and the infectivity test and the effectivity of Rhizobia. The research used Randomized Block Design with 2 treatment: Lime (Without Lime and Lime 1 x Aldd) and Isolate Rhizobia (TJA 1, TJA 3, BGR 1, BGR 3, BGR 4, BALAI 2, BALAI 3, LP 1, LP 2, LP 4 and LAB). The application of Rhizobia’s isolate BGR 3 showed the infektively with root nodule amount criteria(124,00). The isolate Rhizobia’s BGR 3 effectively increased N plant level and N absorption (3,80 %; 31,08mg/plant). Application of isolate Rhizobia was not able to increase the level of P plants and P plant uptake. The best interaction was shown (Plant height 85.00 cm, stem diameter 3.93 mm, root nodule 127.50, N level of 3.80%, N absorption 30.16 mg / plant) by treatment of BGR 3 and Lime 1 x Aldd.
Co-Authors alfikri, m reza Hardy Guchi Poltak Mangatur Tua Sirait Tengku Sabrina