Article Per Year (5 Year)
p-Index From 2020 - 2025
0.751
P-Index
This Author published in this journals
All Journal JPT : JURNAL PROTEKSI TANAMAN (JOURNAL OF PLANT PROTECTION) Jurnal Hilirisasi IPTEKS (JHI) JERAMI Indonesian Journal of Crop Science
Darnetty Darnetty
Fakultas Pertanian, Universitas Andalas, Padang
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Dentistry Engineering Environmental Science Health Professions Public Health Veterinary Other

Published : 5 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 5 Documents
Search

 1 
PEMANFAATAN AGEN HAYATI UNTUK PENGELOLAAN OPT CABAI PADA KELOMPOK TANI SIMABUR SUKSES MAKMUR DI KECAMATAN PARIANGAN KABUPATEN TANAH DATAR Trizelia Trizelia; Nurbailis Nurbailis; Yulmira Yanti; Winarto Winarto; Haliatur Rahma; Martinius Martinius; Yenny Liswarni; Rusdi Rusli; Yunisman Yunisman; Darnetty Darnetty; Eri Sulyanti
Jurnal Hilirisasi IPTEKS Vol 2 No 3.b (2019)
Publisher : LPPM Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (940.813 KB) | DOI: 10.25077/jhi.v2i3.b.331

Abstract

Cabai merah merupakan sumber pendapatan utama bagi petani di daerah Tanah Datar. Masalah utama yang selalu dihadapi oleh petani cabai di daerah ini adalah serangan hama dan penyakit yang dapat menyebabkan kehilangan hasil yang cukup tinggi. Hingga saat ini, pengendalian hama dan penyakit sayuran masih mengandalkan pestisida sintetik yang telah menimbulkan dampak negatif. Untuk itu, perlu dicari alternatif pengendalian yang dapat mengurangi dampak negatif pestisida tersebut, yaitu menggunakan agens hayati seperti cendawan Beauveria bassiana dan Trichoderma sp.Tujuan dari kegiatan pengabdian kepada masyarakat ini adalah untuk memperkenalkan dan memasyarakatkan pengendalian hama dan penyakit menggunakan agens hayati Beauveria bassiana dan Trichoderma sp. Metode kegiatan pengabdian adalah penyuluhan, pelatihan dan praktek lapangan. Minat petani untuk menggunakan agens hayati terutama Beauveria bassiana dan Trichoderma cukup tinggi dan telah memotivasi mereka untuk mengurangi penggunaan pestisida sintetis. Petani juga telah berhasil memperbanyak agens hayati dan membuat kompos limbah pertanian menggunakan Trichoderma.
The Potential of Arbuscular Mycorrhizal Fungi (AMF) as Biocontrol Agent Against Stem Rot Diseases Caused Sclerotium rolfsii of peanut (Arachis hypogaea L) Fradilla Swandi; Eri Sulyanti; Darnetty Darnetty; Reflin Reflin
JERAMI : Indonesian Journal of Crop Science Vol 2 No 2 (2020): JIJCS
Publisher : Department of Crop Science, Faculty of Agriculture, Andalas University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jijcs.2.2.65-71.2020

Abstract

This study was conducted to assess the biocontrol efficacy of arbuscular mycorrhizae fungi (AM Fungi) against stem rot disease caused by Sclerotium rolfsii Sacc. in peanut. The AM Fungi can be associated with almost all types of plants. The purpose of this study was to obtain isolates of arbuscular mycorrhiza fungi (AMF) as a potential biofungisida against Sclerotium rolfsii and can characterize the mechanism of the FMA in controlling S.rolfsii (salicylic acid) on peanut plants. The AM Fungi inoculant (40 spores g-1 in concentration) was introduced to peanut seedling (25 g plant-1 ) at planting time where as Sclerotium rolfsii inoculated 30 days after planting time. The experiment was arranged in the completely randomized design (CRD), which is 7 treatment sand repeated 10 times in the greenhouse experiment. The data were analyzed using analysis of variance (ANOVA) using STAT program 8 and the Tukey test at 5% significance level. The AM Fungi treatments showed significantly redused the percentage of disease severity in infected peanut plants around 34.28% - 57.15% and longer incubation period, respectively. They increased root colonization (20,00 - 46.67%) with a middle to high category. The AM Fungi C isolate (isolated from Solok county), and the A isolate (isolated from Payakumbuh city) were the best as a biocontrol against S rolfsii (57.15%), followed by isolate D (isolated from Padang Pariaman county) 54,30 %. They also increased Salicylic acid content 1,4 times (70.72 ppm) compared to control (49,59 ppm). It can be concluded that the application of AM Fungi as a biocontrol agent played an important role in plant resistance and exhibit greater potential to protect peanut plants against S. rolfsii.
Respon Beberapa Varietas Padi Terhadap Serangan Fusarium fujikuroi Penyebab Penyakit Bakanae Darnetty Darnetty; Eri Sulyanti
Jurnal Proteksi Tanaman Vol 1 No 1 (2017): June 2017
Publisher : Plant Protection Departement, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (230.968 KB) | DOI: 10.25077/jpt.1.1.18-23.2017

Abstract

Fusarium fujikuroi is the cause of bakanae disease in rice plants. Level of bakanae disease attack on some rice cultivation land in West Sumatra, especially in Padang Pariaman district is quite high. One effort to suppress the development of F. fujikuroi is by planting resistant varieties. In this study, 15 rice varieties originating Sumatera Barat were used to be tested for their response to F. fujikuroi attack. The purpose of this study was to obtain the varieties with the low attack rate of F. fujikuroi. Parameters observed were number of dead seeds, number of dead seedlings, number of stunted seedlings, number of seeds showing symptoms of Bakanae and total infected seeds. The results of the study indicated that symptoms of F. fujikuroi attack varied which were dead seeds, stunting seedlings, dead seedslings and bakanae. The response of rice varieties to F. fujikuroi attack was different with characterized by different levels of infection rates. Low infection rates were found in Pessel varieties (2.0%), Batang sahalai (15.5%), Cisokan (17.0%), and Batang Lembang (20%). Other varieties showed a high percentage of F. fujikuroi attacks ranging from 20% to 54.5%.
KETEPATAN WAKTU APLIKASI Paecilomyces lilacinus DALAM MENGENDALIKAN NEMATODA BENGKAK AKAR (Meloidogyne spp.) PADA TANAMAN TOMAT Winarto Winarto; Darnetty Darnetty; Yenny Liswarni
Jurnal Proteksi Tanaman Vol 4 No 1 (2020): June 2020
Publisher : Plant Protection Departement, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (363.097 KB) | DOI: 10.25077/jpt.4.1.38-44.2020

Abstract

Root-knot nematodes (Meloidogyne spp.) have been reported to be one of the primary pathogens that decreased tomato production in Indonesia. Biological control of root-knot nematodes by using parasitic fungus as like as Paecilomyces lilacinus is still limited. An effective application of parasitic fungi could be successful by managing a suitability application time. The study aimed to determine the suitability of the application time of the P.lilacinus in controlling root-knot nematodes on tomato. The study was conducted in farmers' land that was infected by root-knot nematodes. The experiment was done in a randomized block design with applying P.lilacinus isolates on 12, 8, and 4 days before planting, planting time, and 4, 8, 12 days after planting. All treatments were repeated four times. The application of P. lilacinus onto tomato root at planting time was better at suppressing the development of root-knot nematode compared to applications made before or after planting. P. lilacinus was able to suppress the number of root-knot (66.08%), the number of egg groups (77.33%), the number of eggs (26.79%), and the number of nematodes in the soil (82.20%). Keywords: Application time, Meloidogyne spp., Paecilomyces lilacinus, tomato
Potency of Indigenous Epiphytic Yeast to Control Colletotrichum capsici, the Cause of Anthracnose Disease in Red Chili Darnetty Darnetty; Utari Hermaleni; Yunisman Yunisman
Jurnal Proteksi Tanaman Vol 6 No 2 (2022): December 2022
Publisher : Plant Protection Departement, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.6.2.55-64.2022

Abstract

Anthracnose is an important disease in red chili caused by Colletotrichum capsici which can reduce productivity by up to 65%. Controlling using indigenous epiphytic yeasts has never been done. The study aimed to determine the ability of indigenous epiphytic yeast isolates to control C. capsici on red chili. The study was carried out at the Phytopathology Laboratory, Faculty of Agriculture, Universitas Andalas, from August 2019 - April 2020 in vitro and in vivo. The study used a completely randomized design (CRD) which consisted of 6 treatments with five different isolates (4 isolates from fruit and one from leaves) and a control. Parameters observed were macroscopic and microscopic characteristics of yeasts, C. capsici colony area, disease incubation period, and anthracnose symptoms. The results showed that the five epiphytic yeast isolates could suppress the growth of C. capsici, inhibit colony expansion between 27.09 – 59.11%, extend the incubation period for one day, and inhibit the expansion of anthracnose symptoms between 52.30 – 62.64%. Epiphytic yeast isolate KB1 derived from fruit has the highest inhibition.
Co-Authors Afriyanita Afriyanita Desi Afrida Putri Eka Candra Lina Eri Sulyanti Fradilla Swandi Haliatur Rahma, Haliatur Martinius Martinius NOVRI NELLY Nurbailis Reflin Reflin Rusdi Rusli Sulyanti, Eri Trizelia . Utari Hermaleni Wahyu Ricar Winarto Winarto Yenny Liswarni Yulmira Yanti YUNISMAN . Yunisman Yunisman