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Perbanyakan Jamur Trichoderma sp pada Beberapa Media Dewi Novianti
Sainmatika: Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam Vol. 15 No. 1 (2018): Sainmatika : Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam
Publisher : Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (266.19 KB) | DOI: 10.31851/sainmatika.v15i1.1763

Abstract

This study aims to determine the media suitable for growth and propagation of Trichoderma sp. Trichoderma sp is a fungus that can be used as a biological agent against plant pathogens while improving the growth and development of plants. The study was prepared based on a complete randomized design pattern (RAL) consisting of six treatments and each treatment was repeated four times. The tested treatments were Media PDA (M1), rice medium (M2), corn medium (M3), green bean medium (M4), sawdust media (M5), and bran medium (M6). The parameters observed in this study are two, namely the diameter of colony growth and conidia density. Initial isolates of Trichoderma sp were used 8.5x106 conidia/mg. The results showed the multiplication of Trichoderma sp on various media have an effect on to growth of diameter and density of Trichoderma sp colony. Trichoderma sp can grow on all treatment mediums. Media bran is the highest medium density conidia than other media.  ABSTRAK Penelitian ini bertujuan untuk mengetahui media yang cocok untuk pertumbuhan dan perbanyakan jamur Trichoderma sp. Trichoderma sp merupakan jamur yang dapat dijadikan agen hayati terhadap patogen tanaman sekaligus meningkatkan pertumbuhan dan perkembangan tanaman. Penelitian disusun berdasarkan pola rancangan acak lengkap (RAL) yang terdiri dari enam perlakuan dan setiap perlakuan diulang sebanyak empat kali. Perlakuan yang diujikan adalah Media PDA (M1), media beras (M2), media jagung (M3), media kacang hijau (M4), media serbuk gergaji (M5), dan media dedak (M6). Parameter yang diamati dalam penelitian ini ada dua yaitu diameter pertumbuhan koloni dan kerapatan konidia. Isolat awal Trichoderma sp yang digunakan sebanyak 8,5x106 konidia/mg. Hasil penelitian menunjukkan perbanyakan Trichoderma sp pada berbagai media berpengaruh terhadap pertumbuhan diameter dan kerapatan koloni Trichoderma sp. Trichoderma sp dapat tumbuh pada semua media perlakuan. Media dedak merupakan media yang paling tinggi kerapatan konidia dibandingkan media lainnya. Kata Kunci: Perbanyakan, Trichoderma sp, media
Toksisitas Ekstrak Daun Srikaya (Annona squamosa Linn.) Terhadap Jamur Fusarium sp Dewi Novianti
Sainmatika: Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam Vol. 16 No. 2 (2019): Sainmatika : Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam
Publisher : Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (684.236 KB) | DOI: 10.31851/sainmatika.v16i2.3247

Abstract

Telah dilakukan penelitian Toksisitas Ekstrak Daun Srikaya (Annona squamosa Linn.) Terhadap Jamur Fusarium sp. Penelitian ini dilakukan secara in vitro dengan tujuan untuk menngetahui toksisitas ekstrak metanol daun sirsak terhadap jamur Fusarium sp penyebab layu kecambah pada tanaman. Penelitian menggunakan Rancangan Acak Lengkap dengan 6 perlakuan 5 kali ulangan. Ekstrak metanol daun srikaya yang dipakai yaitu konsentrasi 0%, 2%, 4%, 6%, 8% dan 10%. Hasil analisis sidik ragam menunjukkan bahwa pemberian perlakuan ekstrak daun srikaya berpengaruh nyata terhadap jamur Fusarium sp. Ekstrak daun srikaya bersifat toksik terhadap pertumbuhan jamur Fusarium sp. Toksisitas ekstrak daun srikaya terhadap jamur Fusarium sp berbanding lurus  antara konsentrasi perlakuan dengan persentase penghambatannya. Pada konsentrasi ekstrak daun srikaya sebanyak 2% sudah bersifat toksik dalam menghambat pertumbuhan Fusarium sp.
Skrining Fitokimia Ekstrak Daun Sungkai (Peronema canescens Jack.) Secara Infundasi Dan Maserasi Ita Emilia; Andi Arif Setiawan; Dewi Novianti; Dian Mutiara; Rangga Rangga
Indobiosains 2023: Volume 5 No 2 Agustus 2023
Publisher : Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/indobiosains.v5i2.12597

Abstract

The Sungkai plant has become a trending topic lately because of its benefits, which are believed by some people to be used in preventing the transmission of the COVID-19 virus by boiling some of its leaves using water. The purpose of this research was to examine the active ingredients contained in sungkai leaves (Peronema canescens Jacks) which were extracted by infundation (water solvent) and extracted by maceration (methanol solvent). The method used in this study is a qualitative chemical analysis. Phytochemical screening in this study, namely the alkaloid test (using Mayer, Wagner, and Dragendroff reagents), flavonoid test, tannin test, saponin test, steroid test, terpenoid test. Based on the results of the study, the results of the phytochemical screening of the methanol extract of sungkai leaves by maceration showed that all of the active compounds contained were positive, while the positive infundament extract contained flavonoids, steroids, terpenoids, tannins, saponins, but negative alkaloids.
Respons Pertumbuhan Tanaman Terong (Solanum melongena L.) Terhadap Pemberian Unsur Hara Organik Limbah Kulit Pisang Kepok (Musa acuminata L.) Ita Emilia; Dewi Novianti; Tesya Vinolasari; Parasmita Anggraini
Environmental Science Journal (esjo) : Jurnal Ilmu Lingkungan 2022: Volume 1 Nomor 1 Desember 2022
Publisher : Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/esjo.v1i1.11001

Abstract

Research on Eggplant (Solanum melongena L.) Growth Responses to Application of Organic Nutrients from Kepok Banana Peel Waste (Musa acuminata L.), aims to examine the provision of appropriate nutrient concentrations for eggplant plant growth. This study used the RAL experimental method, namely the administration of banana peel organic nutrients consisting of 6 treatments and 4 replications, namely P0 (without nutrients), P1 (100 ml/L of nutrients), P2 (200 ml/L of nutrients), P3 (300 ml). /L nutrients), P4 (400ml/L nutrients) and P5 (500ml/L nutrients). The results showed that the growth response of eggplant (Solanum melongena L.) to the application of organic nutrients from kepok banana peel waste (Musa acuminata L.) in the P5 treatment gave the highest yield at an average plant height of 7.5 cm, number of leaves 5, 5 strands and a stem diameter of 0.38 cm while the lowest average value was found at P0 with an average plant height of 4.75 cm, number of leaves of 3.25 strands and a stem diameter of 0.27 cm.