Claim Missing Document
Check
Articles

Found 28 Documents
Search

Induksi ketahanan tanaman padi terhadap serangan pathogen busuk pelepah (Rhizoctonia solani) menggunakan halotoleran bakteri Diazotrof asal pantai utara Pemalang, Jawa Tengah Isnaeni, Fenty Chakimatul; mugiastuti, Endang; Leana, Ni Wayan Anik; Oktaviani, Eka; Purwanto, Purwanto
Jurnal AGRO Vol. 9 No. 1 (2022)
Publisher : Jurusan Agroteknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/18516

Abstract

Padi merupakan komoditas pangan yang memiliki peranan terpenting dalam memenuhi kebutuhan pokok masyarakat Indonesia. Ekstensifikasi produksi padi dapat dilakukan dengan memanfaatkan lahan marjinal seperti lahan salin. Lahan salin merupakan lahan yang memiliki kadar kadar garam tinggi akibat intrusi air laut maupun tingginya laju evaporasi. Pengembangan budidaya padi di lahan salin memiliki kendala berupa serangan patogen busuk pelepah (Rhizoctonia solani). Alternatif pengendalian patogen selain menggunakan pestsida kimia, dapat dilakukan menggunakan Plant Growth Promoting Rhizobacteria (PGPR), seperti kelompok bakteri diazotrof. Penelitian ini bertujuan untuk mengetahui potensi bakteri diazotrof lahan salin dalam meningkatkan ketahanan tanaman padi serta kemampuannya dalam memacu pertumbuhan padi yang terinfeksi R. solani. Penelitian dilaksanakan di Experimental Farm dan Laboratorium Agronomi & Hortikultura, Fakultas Pertanian Unsoed pada bulan Oktober 2021 - Februari 2022. Rancangan yang digunakan adalah Rancangan Acak Kelompok Lengkap (RAKL) dengan 11 perlakuan dan diulang tiga kali, meliputi kontrol tanpa inokulasi bakteri diazotrof dan inokulasi isolat Ju1, Jn3, Jn1, J, J12, J5, Kn1, A3, Jn dan K3. Semua tanaman juga dinokulasi dengan Rhizoctonia solani. Hasil penelitian menunjukkan bahwa inokulasi bakteri diazotrof dapat meningkatkan ketahanan padi yang terinfeksi jamur R. solani, ditandai dengan penurunan intensitas penyakit hingga 70%, peningkatan kandungan saponin, tanin dan hidrokuinon, serta peningkatkan pertumbuhan tinggi tanaman dan panjang akar total padi.ABSTRACTRice is the most important  food commodity that supply the basic needs of the Indonesian people. The development of rice cultivation in salin land has obstacles in the form of attacks by sheat blight pathogen (Rhizoctonia solani). Alternative to controlling pathogens other than using chemical pesticides is by using Plant Growth Promoting Rhizobacteria (PGPR), such as diazotroph bacteria. This research aimed to determine the potential of diazotrof bacteria in increasing rice resistance and its ability to stimulate the growth of rice infected with R. solani. The research was carried out at Experimental Farm and Agrohorti Laboratory, Faculty of Agriculture Unsoed in October 2021 - February 2022. The design used was Randomized Completely Block Design (RCBD) with 11 treatments and repeated three times, including controls without inoculation of diazotroph bacteria and inoculation of isolates Ju1, Jn3, Jn1, J, J12, J5, Kn1, A3, Jn and K3. All plants were also inoculated with R. solani. The results showed that inoculation with diazotrof bacteria could increase the rice resistance towards attack of sheath blight pathogen (R. solani) that characterized by a decrease disease intensity up to 70%, increase saponins, tannins and hydroquinones content, also increase growth of plant height and total root length of rice.
Halotolerant Phosphat Solubilizing Bacteria from Paddy Saline Soil Eka Oktaviani; Purwanto, Purwanto; Susanti, Retna; Amalia, Dwi Ayu Lutfiana; Leana, Ni Wayan Anik; Oktaviani, Eka; Kurniawan, Ruly Eko Kusuma; Omer, Omer Ahmed Mohamed
Biosaintifika: Journal of Biology & Biology Education Vol. 17 No. 3 (2025): November 2025
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v17i3.22412

Abstract

Salinity stress on productive rice fields in coastal areas will have a negative impact on productivity through osmotic stress and nutrient deficiencies. Salinity stress causes high levels of Na and Cl in the soil, thus inhibiting phosphate absorption. Utilization of indigenous P-solubilizing bacteria from saline land is an alternative, environmentally friendly technology. The purpose of this study was to isolate and characterize P-solubilizing bacteria from saline rice fields. Soil samples were taken from the rice rhizosphere in Nyamplungsari Village, Peraturkan District, Pemalang Regency. Isolation and characterization were carried out at the Agronomy & Horticulture Laboratory, Faculty of Agriculture, UNSOED. The variables observed included P solubility index, P solubilizing ability, IAA production, and bacterial identification using the 16S RNA method. The results of the study obtained 7 isolates of P-solubilizing bacteria that had the ability to solubilize P and produce IAA. Isolate KF is a P-solubilizing bacterium that has the highest P-solubilizing ability and is identified as Priestia megaterium strain NRRL B-350. Priestia megaterium strain NRRL B-350 is a species of P-solubilizing bacteria that has the potential to be developed as a specific biological fertilizer for saline soil to increase the growth and yield of rice plants under saline stress.
Halotolerant Phosphat Solubilizing Bacteria from Paddy Saline Soil Eka Oktaviani; Purwanto, Purwanto; Susanti, Retna; Amalia, Dwi Ayu Lutfiana; Leana, Ni Wayan Anik; Oktaviani, Eka; Kurniawan, Ruly Eko Kusuma; Omer, Omer Ahmed Mohamed
Biosaintifika: Journal of Biology & Biology Education Vol. 17 No. 3 (2025): November 2025
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v17i3.22412

Abstract

Salinity stress on productive rice fields in coastal areas will have a negative impact on productivity through osmotic stress and nutrient deficiencies. Salinity stress causes high levels of Na and Cl in the soil, thus inhibiting phosphate absorption. Utilization of indigenous P-solubilizing bacteria from saline land is an alternative, environmentally friendly technology. The purpose of this study was to isolate and characterize P-solubilizing bacteria from saline rice fields. Soil samples were taken from the rice rhizosphere in Nyamplungsari Village, Peraturkan District, Pemalang Regency. Isolation and characterization were carried out at the Agronomy & Horticulture Laboratory, Faculty of Agriculture, UNSOED. The variables observed included P solubility index, P solubilizing ability, IAA production, and bacterial identification using the 16S RNA method. The results of the study obtained 7 isolates of P-solubilizing bacteria that had the ability to solubilize P and produce IAA. Isolate KF is a P-solubilizing bacterium that has the highest P-solubilizing ability and is identified as Priestia megaterium strain NRRL B-350. Priestia megaterium strain NRRL B-350 is a species of P-solubilizing bacteria that has the potential to be developed as a specific biological fertilizer for saline soil to increase the growth and yield of rice plants under saline stress.
Keragaman Genetik Aksesi Tanaman Kunyit (Curcuma longa L.) Berdasarkan Penanda Molekuler Simple Sequence Repeat (SSR) Muthia Hanin Afidani; Noor Farid; Eka Oktaviani
Vegetalika Vol 14, No 2 (2025)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/veg.99927

Abstract

A plant breeding program for turmeric (Curcuma longa L.) development is required to fulfil the pharmaceutical industry's demand. Understanding genetic diversity is the initial step in selecting the parents in plant breeding. Selection assisted by molecular markers, specifically Simple Sequence Repeat (SSR), can be used to obtain genetic information. However, genetic information on turmeric based on SSR markers in Indonesia is still limited. This study aimed to determine the genetic diversity and relationship of six accessions of turmeric using 4 (four) SSR primers. This study was conducted from October 2023 to January 2024 at the Laboratory of Plant Breeding and Biotechnology, Faculty of Agriculture, Universitas Jenderal Soedirman. The result showed that the CuMiSat-19, CuMiSat-20, and CuMiSat-29 primers were informative based on the electrophoresis band polymorphism. The CuMiSat-19 primer generated the highest PIC value (0,88), followed by CuMiSat-20 (0,80) and CuMiSat-29 (0,74). While CuMiSat-23 did not produce polymorphism, the PIC value was 0. The dendrogram classified six turmeric accessions into the two clusters with a Jaccard correlation coefficient range of 0.11-0.33. Cluster I consisted of accession A (Ponorogo), accession C (Gresik), accession D (Indramayu), and accession B (Semarang). Cluster II grouped accession E (Banyumas) and accession F (Bogor). Based on the polymorphism and similarity coefficient, turmeric accessions have a wide range of genetic diversity. Turmeric in different clusters is a potential germplasm that can be utilized to broaden genetic diversity in plant breeding programs.
PARAMETER GENETIK AKSESI JAHE MERAH (ZINGIBER OFFICINALE VAR. RUBRUM) YANG DIKOLEKSI DARI PULAU JAWA, INDONESIA Oktaviani, Eka; Agleri Rante; Agus Suroto
Jurnal Agrotek Tropika Vol. 13 No. 4 (2025): JURNAL AGROTEK TROPIKA VOL 13, NOVEMBER 2025
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jat.v13i4.8344

Abstract

Jahe merah merupakan jahe yang lebih pedas dibandingkan dengan jenis jahe lainnya, yang dapat dimanfaatkan dalam industri obat-obatan. Keterbatasan bibit menjadi permasalahan utama dalam budidaya jahe merah. Informasi tentang keragaman genetik ddan fenotipik jahe merah diperlukan untuk menentukan metode terbaik dalam menghasilkan varietas unggul baru melalui program pemuliaan tanaman. Penelitian ini bertujuan untuk mengetahui keragaman genotipe, fenotipe, dan heritabilitas 7 (tujuh) aksesi jahe merah yang dikoleksi dari 7 (tujuh) daerah di Pulau Jawa. Hasil penelitian menunjukkan bahwa 7 (tujuh) aksesi jahe merah yang diteliti, berdasarkan 4 (empat) karakter agronomi kuantitatif yang diamati, mempunyai ragam genetik yang sempit dan ragam fenotipe yang luas. Berdasarkan nilai duga heritabilitas, diketahui bahwa tinggi tanaman dipengaruhi oleh faktor genetik, sedangkan luas daun, jumlah daun, dan diameter batang dipengaruhi oleh faktor genetik dan lingkungan.
Increasing Interest and Knowledge about Verticulture Cultivation among Adolescents at the Gelora Indah Mosque Orphanage, North Purwokerto: Peningkatan Minat dan Pengetahuan tentang Budidaya Vertikultur pada Remaja Panti Asuhan Masjid Gelora Indah Purwokerto Utara Agus Suroto; Tarjoko; Eka Oktaviani
JATI EMAS (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) Vol. 8 No. 1 (2024): Jati Emas (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat)
Publisher : DPD Jatim Perkumpulan Dosen Indonesia Semesta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Orphanages play an important role in replacing the role of parents in nurturing, looking after, and providing guidance to children so that they become adults who are valuable and responsible for themselves and society in the future. The goal of the community service was to increase the interest and knowledge of teenagers at the Gelora Indah Mosque Orphanage, North Purwokerto, regarding vertical-culture (verti-culture) cultivation techniques. Verticulture technique was chosen because of the potential for narrow yard land, which can be used as land for agricultural crop production, especially plants that are suitable for vertical cultivation. This activity can be used as a provision for achieving food self-sufficiency at the household level and as a basis for producing agricultural products that can be used as input for entrepreneurship from an early age. The community service was conducted from March to May 2023 with all the teenagers of Gelora Indah Mosque Orphanage. The methods were a pre-test, a transfer of knowledge about verti-culture cultivation techniques, cultivation practices, harvesting, and finally, post-tests for the last evaluation. This activity can increase participants' interest and knowledge about the concept of verti-culture by 83.34%, about the needs for verti-culture installation by 66.67%, and about the benefits of verti-culture by 100%. Activities in the form of transfer of knowledge about post-harvest handling and processing, as well as marketing techniques for processed and fresh agricultural products, are needed to support the long-term benefits of this activity.
ANALISIS SISTEM INFORMASI PERSONEL POLRI (SIPP 2.0) DI BIRO SDM POLDA JAMBI MENGGUNAKAN METODE SWOT Efitra; Muhtadinal Mufasirin; Nuhrizky Saputra; Eka Oktaviani; Nurhalizah Syaqila; Reki Hasanain Haikal; M ifdhol Jofi Andrian; Laila ayu Museltisari
INFOTECH journal Vol. 11 No. 1 (2025)
Publisher : Universitas Majalengka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31949/infotech.v11i1.14205

Abstract

Sistem Informasi Personel Polri (SIPP) 2.0 merupakan sistem berbasis web yang dirancang untuk mengelola data personel secara digital dan terintegrasi dalam lingkup Polri. Aplikasi ini membantu Biro SDM dalam proses pembinaan dan pengelolaan data sumber daya manusia secara efisien, akurat, dan tepat waktu. Tujuannya adalah untuk melakukan analisis terhadap sistem informasi SIPP 2.0 yang digunakan di Biro SDM Polda Jambi dengan menggunakan pendekatan SWOT. Hasil dari analisis menunjukkan bahwa sistem ini memiliki kekuatan dari sisi kelengkapan data dan kemudahan akses, namun juga ditemukan beberapa kelemahan seperti ketergantungan pada jaringan internet dan potensi kesalahan input. Dengan melihat peluang pengembangan dan tantangan keamanan, sistem ini dapat dioptimalkan lebih lanjut untuk mendukung transformasi digital Polri.
Analisis Flash Sale Promotion, Online Customer Review, dan Celebrity Endorser Terhadap Purchase Interest pada E-Commerce: Studi pada Aplikasi Shopee Eka Oktaviani; Satrio Sudarso; Misti Hariasih
Al-Kharaj: Jurnal Ekonomi, Keuangan & Bisnis Syariah Vol. 7 No. 4 (2025): Al-Kharaj: Jurnal Ekonomi, Keuangan & Bisnis Syariah
Publisher : Intitut Agama Islam Nasional Laa Roiba Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47467/alkharaj.v7i4.7328

Abstract

This research was carried out to analyze how much influence the Flash Sale Promotion, Online Customer Review, and Celebrity Endorser variables have on Purchase Interest in E-Commerce, namely the Shopee application. The method used is a quantitative method, and the technique used for research is nonprobability sampling using a purposive sampling technique and the number of respondents is 100 people. The test model used by researchers in processing research data is the multiple regression analysis test, including Validity Test and Reliability Test, Normality Test, Multicollinearity Test, Autocorrelation Test, Autocorrelation Test, Heteroscedasticity Test, Multiple Linear Regression Analysis, Partial Significance Test (T Test), Simultaneous Significance Test (F Test), Coefficient of Determination Test (R2). And the data was processed using the IBM SPSS version 29 application. The results of this research show that the flash sale promotion variable partially has no effect on buying interest, while the online customer review and celebrity endorser variables partially have a positive and significant influence on buying interest. Simultaneously, the flash sale promotion, online customer review, and celebrity endorser variables have an influence on the purchase interest variable.