Nasril Nasir
Laboratorium Mikrobiologi, Jurusan Biologi, FMIPA, Universitas Andalas

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Jenis-Jenis Jamur pada Pembusukan Buah Kakao (Theobroma cacao, L.) di Sumatera Barat Yenita Afriyeni; Nasril Nasir; - Jumjunidang
Jurnal Biologi Universitas Andalas Vol 2, No 2 (2013)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.2.2.%p.2013

Abstract

Currently, cacao (Theobroma cacao, L.) farm is being developed in West Sumatra as one of the most potential estate crops. Less than 10 years, the crop had been developed up to 110,000 ha whereas it was only 25,000 ha in 2005. However there is none of the crops free from disease of immature fruit decay. The aim of this study was to identify the fungus which were collected on decay fruits of cocoa. Samples were collected from lowland and highland farms in West Sumatera by purposive sampling method. Fungus found on the decay fruit of cocoa in the lowland were Phytophthora palmivora, Fusarium sp and Aspergillus niger, while in highland were P. palmivora, Fusarium sp and Gloeosporium.Keywords: cacao, fungus identification, decay fruit.
Pengaruh Naphthalene Asam Asetat (NAA) pada Pertumbuhan Akar Pisang Raja Kinalun Secara In Vitro Rahmi Rini Dwi Putri; Suwirmen Suwirmen; Nasril Nasir
Jurnal Biologi Universitas Andalas Vol 6, No 1 (2018)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.6.1.1-5.2018

Abstract

The influence of Naphthalene Acetate Acid (NAA) on the in vitro root growth of banana Raja Kinalun was carried out from April to September 2015 in The Laboratories of Plant Physiology and Tissue Culture, Faculty of Mathematics and Natural Sciences, University of Andalas, Padang. The aim of  this study was to find the effective concentration of NAA for initiation of root. This study used a Completely Randomized Design (CRD) with four treatments and three replications. The treatments were: without NAA (control); NAA 1 ppm, NAA 2 ppm and NAA 3 ppm. The result showed that the effective doses were NAA 1 and 2 ppm for each number of roots growth.
Uji Antimikroba Ekstrak Segar Jahe-Jahean (Zingiberaceae) Terhadap Staphylococcus aureus, Escherichia coli dan Candida albicans Kartika Indah Permata Sari; - Periadnadi; Nasril Nasir
Jurnal Biologi Universitas Andalas Vol 2, No 1 (2013)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.2.1.%p.2013

Abstract

Seven species of Zingiberaceae were investigated for their antimicrobial activities against Staphylococcus aureus, Escherichia coli and Candida albicans. Extract of grinded rhizome was centrifuged at 10.000 rpm for five minutes. This study used completely randommized design in nested pattern with three replications. The first factor was the tested microbe and the second was the fresh extract of the ginger rhizome. The result showed that fresh extract of red ginger (Zingiber officinale var. Rubrum) gave the highest inhibition to the growth of S. aureus (15.83 mm) and E. coli (15.33 mm) while elephant ginger (Z. officinale var. Roscoe) gave the highest inhibition growth of C. albicans (10.7 mm).Key words: antimicrobial, ginger, microbial pathogen