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All Journal AL KAUNIYAH Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati Biogenesis: Jurnal Ilmiah Biologi Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam JURNAL AGROTEKNOLOGI Jurnal Solum Jurnal Riau Biologia Agrosains: Jurnal Penelitian Agronomi Jurnal Biologi Tropis Dinamisia: Jurnal Pengabdian Kepada Masyarakat Jurnal Agrotek Tropika PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Jurnal Agronomi Tanaman Tropika (JUATIKA) Unri Conference Series: Community Engagement
Delita Zul
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Economics, Econometrics & Finance Environmental Science Immunology & microbiology Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Public Health Social Sciences Other

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Population Density of Soil Mesofauna in Secondary Forest, Palm Oil Agroforestry using Agarwood Gharu and Community Rubber Gardens in Kampar District Firdaus Amir; Hapsoh Hapsoh; Delita Zul
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol 5 No 2 (2023): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 5 No. 2 Juli 2023
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v5i2.2482

Abstract

Soil mesofauna plays a role in fertilizing the soil and plants. Soil mesofauna is one of the soil organisms that can provide information about soil quality and fertility. This study aims to analyze the population density of soil mesofauna in secondary forests, oil palm agroforestry with agarwood and community rubber plantations in Kampar Regency. Soil sampling using purposive sampling method and soil mesofauna sorting using a barless tullgreen tool. The results showed that the total population density of soil mesofauna in oil palm agroforestry with agarwood was 102.67 indv/m2, rubber plantations were 96.00 indv/m2, and the secondary forest was 85.33 indv/m2. The soil mesofauna family that was primarily obtained in the secondary forest was the Hahniidae family (21 individuals), the oil palm agroforestry with agarwood was the Formicidae family (35 individuals) and in the rubber plantations, the Formicidae family (20 individuals). Information on the population density of soil mesofauna in secondary forests, oil palm agroforestry with agarwood and rubber plantations in Kampar Regency becomes data for better environmental management.
The Effect Of Groundwater Level And Organic Mulch Application On The Chemical Properties Of Peat Soil Vera Nursari; Delita Zul; Hapsoh Hapsoh
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol 5 No 2 (2023): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 5 No. 2 Juli 2023
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v5i2.3053

Abstract

Peat as agricultural land has various obstacles, one of the problems is the decrease in groundwater level. This can have an impact on the availability of nutrients in the soil. Therefore, water management is an absolute necessity for agricultural activities on peatlands. Another effort that can be made to increase the fertility of peatlands as agricultural land is to use organic mulch. This study aims to analyze the effect of peat water level and application of organic mulch on the chemical properties of peat soil planted with corn. This research was conducted in Air Terbit Village, Riau Province and the Soil Laboratory, Faculty of Agriculture, University of Riau, from February to July 2021. This research used a factorial complete randomized design (CRD) method consisting of 2 factors. The first factor was the various heights of the groundwater level which consisted of 3 levels (30 cm, 40 cm and 50 cm), while the second factor was various types of organic mulch (without mulch, mulch of empty oil palm bunches, mulch of rice straw and mulch of corn stover). The results showed that the GWL 30 cm treatment and rice straw mulch increased the pH, Ca and Mg values ​​better than the other treatments, the N element also increased at GWL 30 cm. In general, the two treatment factors also increased the values ​​of P, CEC and Na in some experimental units. C-organic and K values ​​decreased after the treatment compared to the criteria of the soil before treatment.
Endophytic bacteria isolated from stems and roots of Acrostichum aureum Linn. potential for hydrolytic enzyme and α-amylase inhibitor Linda, Tetty Marta; Defani, Syafiqah Amirah; Berliansyah, Azizul; Febriarti, Bernadeta Leni; Zul, Delita
Biogenesis: Jurnal Ilmiah Biologi Vol 12 No 1 (2024)
Publisher : Department of Biology, Faculty of Sci and Tech, Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/bio.v12i1.41668

Abstract

Endophytic bacteria live symbiotically in plant tissues but do not hurt plants. Endophytic bacteria are widely used in the industrial sector as enzyme producers. This study aims to examine the potential of endophytic bacteria from the stems and roots of sea fern (Acrostichum aureum L.) as producers of hydrolytic enzymes and to determine their potential as α-amylase inhibitors. Macroscopic and biochemical tests characterized endophytic bacterial isolates. Hydrolytic enzyme activity test consisted of cellulase, lipase, and laccase enzyme. Isolates that were able to hydrolyze were tested for antidiabetic potential by α-amylase inhibitor test. A total of 24 bacterial isolates were selected for their ability to produce cellulase, lipase, and laccase. The results obtained 24 isolates of endophytic bacteria showed that as much as 33% of stem isolates and 52% of root isolates were able to produce hydrolytic enzymes. The α-amylase inhibition test results of the three endophytic bacteria tested were isolates A.T 2 (17%) and A.A 3 (8%) on 1% starch substrate, and A.T 2 (36%) on 2% starch substrate with a spectrophotometer at a wavelength of 540 nm. Endophytic bacteria isolated from the stems and roots of sea ferns can be developed as an alternative base material for herbal medicines for antidiabetics.
Keragaman Genetik dan Heritabilitas Berbagai Karakter Tanaman Kedelai (Glycine max (L.) Merril) Deviona Deviona; Dewi Indriyani Roslim; Delita Zul; Suhartina Suhartina; Artica Ria Syafitri
Agrosains : Jurnal Penelitian Agronomi Vol 26, No 1 (2024): Agrosains: Jurnal Penelitian Agronomi
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/agsjpa.v26i1.80386

Abstract

The purpose of this study was to determine the genetic diversity and heritability values of the morphological characters of several genotypes of soybean plants. The study used a completely randomized design (CRD) consisting of fourteen genotypes and three replications. The observed parameters were flowering age, harvesting age, plant height, number of nodes, crown width, stem diameter, number of fruitful pods per plant, total number of pods per plant, total number of seeds per plant, number of fruitful seeds per plant, number of seeds per pods, 100 seed weight, and seed weight per plant. Data were analyzed by analysis of variance using SAS version 9.0, followed by Duncan's multiple range test (DNMRT) at the 5% level. The results showed that the characters were flowering age, harvesting age, plant height, number of nodes, stem diameter, total number of pods per plant, number of seed pods per plant, total number of seeds per plant, number of seeds per plant, number of seeds per pod, weight seed per plant, has a wide genetic diversity. Crown width characteristics have narrow genetic diversity. All characters showed wide phenotypic diversity. The heritability results showed that the characteristics were flowering age, harvesting age, plant height, number of nodes, crown width, stem diameter, total number of pods per plant, number of seed pods per plant, total number of seeds per plant, number of seeds per plant, and number of seeds per plant. Pods and seed weight per plant were classified as having a high heritability. The characteristics of flowering age, harvesting age, plant height, number of nodes, stem diameter, total number of pods per plant, number of fruitful pods per plant, total number of seeds per plant, number of fruitful seeds per plant, number of seeds per pod, and seed weight per plant can be used as selection criteria because they have a wide genetic diversity and high heritability value.
Aplikasi Ecoprint untuk Mendukung Peningkatan Produktifitas Ekonomi Perempuan Desa Tarai Bangun: Ecoprint Application to Support Increasing Economic Productivity of Women in Tarai Bangun Village Wahibah, Ninik Nihayatul; Martina, Atria; Zul, Delita; Yulminarti, Yulminarti; Meiwanda, Geovani
PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Vol. 9 No. 4 (2024): PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat
Publisher : Institute for Research and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/pengabdianmu.v9i4.7038

Abstract

Most women in Tarai Bangun Village focus on their domestic activities. The community service program aimed to empower women in the enhancing of their economic productivity through gaining new skills such as the eco print technique. Ecoprint is an eco-friendly product, using parts of plants; therefore, it also inspires women to preserve the existence of local germplasm. The results of the program showed that all participants were able to make ecoprint products. They also were satisfied with this program. However, the drawback of this program is that our partners need to understand marketing techniques.
Assistance in Preparing Quality Documents for Private Universities in Kampar Regency: Pendampingan Penyusunan Dokumen Mutu Bagi Perguruan Tinggi Swasta di Kabupaten Kampar Zulkarnain, Zulkarnain; Suryanita, Reni; Zul, Delita; Olivia, Yessi
Dinamisia : Jurnal Pengabdian Kepada Masyarakat Vol. 8 No. 5 (2024): Dinamisia: Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Lancang Kuning

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/dinamisia.v8i5.17285

Abstract

Quality assurance of higher education is carried out through the determination, implementation, evaluation, control, and improvement of Higher Education Standards (SPT) known as the PPEPP cycle. Each university is expected to be able to develop an SPMI pattern that is appropriate for the conditions of the university itself. However, not all universities have the same understanding of the implementation of SPMI. For this reason, this community service activity aims to help two universities in Kampar Regency, Riau Province, namely: Universitas Pahlawan Tuanku Tambusai and STIE Bangkinang. Although these two universities already have an Internal Quality Assurance Institution, the adequacy of SPMI documents has not been fully met according to standards. The community service activity began by distributing an initial survey on participants' understanding of SPMI at their respective universities. Furthermore, the community service activity was filled with the provision of materials and a final survey to analyze changes in the level of participants' understanding of the material given to participants. The survey results showed that there had been an increase in participants' understanding in compiling and archiving SPMI documents.
Growth of Oil Palm Seedlings in Main Nursery with Application Mo Micronutrients and Mycorrhiza on Podzolic Soil Putra, Ilham Mado; Deviona, Deviona; Zul, Delita
Jurnal Biologi Tropis Vol. 25 No. 4b (2025): Special Issue
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i4a.10878

Abstract

The development of oil palm plants in nurseries is greatly affected by the type of growing medium used. Podzolic soils have many drawbacks, such as excessive acidity, a high level of exchangeable aluminum, low levels of phosphorus, and a low cation exchange capacity. By incorporating molybdenum and mycorrhizae as micronutrients, it is possible to improve the soil's chemical properties and promote better growth in seedlings. This study aimed to determine the effects of Mo and mycorrhiza applications on the growth of oil palm seedlings in the main nursery using podzolic soil as the planting medium. The research was conducted at an independent oil palm nursery in Sungai Kumango Village, Rokan Hulu Regency, Riau Province, using a factorial Completely Randomized Design with two factors: Mo doses (0, 0,3, and 0,6 g.plant⁻¹) and mycorrhiza doses (0, 5, 50, and 75 g.plant⁻¹), producing 12 treatment combinations with three replications each. Data were analyzed using ANOVA followed by the LSD test at a 5% significance level. The results showed that the application of Mo and mycorrhiza improved the chemical properties of podzolic soil, particularly total N, total K, total P, and CEC. However, neither the interaction nor the individual factors had a significant effect on seedling growth parameters, including plant height increment, number of fronds, and bulb diameter. The highest mycorrhizal infection levels were observed with the combination of  Mo 0.6 g.plant⁻¹ and mycorrhiza at 25 g and 75 g.plant⁻¹.
KADAR HARA KELAPA SAWIT PADA LAHAN GAMBUT YANG DIAPLIKASI MIKORIZA Firlana, Firlana; Nelvia; Delita Zul; Kumbara
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.v13i4.7663

Abstract

Kesuburan tanah gambut tergolong rendah yang dicirikan dengan sifat kimia tanah antara lain pH yang rendah (masam), unsur hara makro (seperti K, Ca, Mg, P) dan mikro (seperti Cu, Zn, Mn, Bo) di tanah tergolong rendah hingga sangat rendah, sedangkan kapasitas tukar kation (KTK) memiliki nilai sangat tinggi, namun tingkat kejenuhan basa (KB) dari sangat rendah. Untuk meningkatkan ketersediaan hara dan penyerapan pada tanaman membutuhkan organisme mikoriza yang mampu meningkatkan daya tanaman dalam menyerap unsur hara. Penelitian bertujuan untuk  menganalisis kadar unsur hara tanaman kelapa sawit yang ditanam di lahan gambut dengan pemberian mikoriza pada beberapa tingkat umur tanaman. Penelitian menggunakan metode survei dan sampel secara purposive random sampling pada umur tanam yang berbeda (1, 2, 3, 4 tahun) yang diaplikasi mikoriza diawal tanam. Sampel daun yang diambil  untuk umur <3 tahun pada daun ke-9 dan daun ke-17 umur >3 tahun. Sampel diambil  secara acak dan dianalisis di laboratorium serta analisis ANOVA dan uji lanjut Beda Nyata Terkecil (BNT). Parameter yang diamati meliputi unsur hara makro (N, P, K, Mg, Ca) dan mikro (B, Cu, Zn) pada daun. Hasil penelitian menunjukkan aplikasi mikoriza sangat nyata meningkatkan hara P daun pada umur 1 tahun serta peningkatan tertinggi hara N dan K dari perlakuan lainnya.
Isolasi dan Karakterisasi Bakteri Selulolitik dari Hutan Mangrove Bengkalis, Riau: Potensi Sebagai Agen Biofertilizer Aisah; Zul, Delita
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 11, No 1 (2026): February 2026
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v11i1.11824

Abstract

Hutan mangrove merupakan ekosistem pesisir yang kaya akan bahan organik dan mendukung pertumbuhan mikroorganisme penghasil enzim selulase. Salah satu kelompok mikroorganisme penting di lingkungan ini adalah bakteri selulolitik yang mampu mendegradasi selulosa. Penelitian ini bertujuan untuk isolasi dan karakterisasi bakteri selulolitik dari sedimen dan rizosfer tanaman alami mangrove di Desa Kelapapati, Kabupaten Bengkalis, Riau. Penelitian dilakukan melalui pengambilan sampel sedimen dan rizosfer, isolasi bakteri menggunakan medium Cellulose Congo Red Agar (CCRA), uji aktivitas selulolitik berdasarkan zona bening yang terbentuk di sekeliling koloni, dan karakterisasi makroskopis dan mikroskopis terhadap isolat yang menunjukkan aktivitas selulolitik. Sebanyak 36 isolat berhasil diisolasi, terdiri atas 21 isolat asal rizosfer dan 15 isolat asal sedimen. Hasil uji menunjukkan bahwa sebanyak 20 isolat konfirmasi membentuk zona bening dengan indeks selulolitik pada kategori tinggi sebanyak 13 isolat, kategori sedang sebanyak empat isolat, dan kategori rendah sebanyak tiga isolat. Isolat MAT 1.1 menunjukkan indeks selulolitik tertinggi mencapai 10,8±0,6 dan potensial sebagai agen biofertilizer. Sebagian besar isolat tergolong bakteri Gram negatif berbentuk bacil dan streptobacil. Lingkungan mangrove dengan pH 6, suhu rata-rata 30°C, dan salinitas 12,67 dS/m mendukung pertumbuhan bakteri selulolitik. Penelitian ini menunjukkan bahwa hutan mangrove Desa Kelapapati, Bengkalis, Riau merupakan sumber potensial bakteri selulolitik yang dapat dikembangkan sebagai agen biofertilizer.
Co-Authors , Deviona, , Abda Abda Ahmad Huesean Aisah Artica Ria Syafitri Atria Martina Berliansyah, Azizul DARYAT, FIKRI Defani, Syafiqah Amirah Deviona Deviona Dewi Indriyani Roslim Ennie Cahyadi ENNIE CHAHYADI, ENNIE Febriarti, Bernadeta Leni Fenny Astriani Firdaus Amir Firlana Firlana Fitmawati Fitmawati Geovani Meiwanda Hapsoh Hapsoh Hapsoh Hapsoh Huryatul Islam Huryatul Islam Ikhlasul Febrianto Khaidir Anuar Kumbara L. FIBRIARTI, BERNADETA MAWARTI, INDAH Muhammad Rizky Darmawan Nelvia Nelvia Nila Veronika Ninik Nihayatul Wahibah Ninik Nihayatul Wahibah NOVA WAHYU PRATIWI, NOVA WAHYU Nurkhasanah Putri Rakhman Putra, Ilham Mado Ratna Jelita Reni Suryanita Rodesia Mustika Roza Suhartina Suhartina Tania Aisyah Rinaldi Tetty Marta Linda Vera Nursari Yessi Olivia Yuana Nurulita YULMINARTI, YULMINARTI Zulkarnain Zulkarnain