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Journal : Stigma : Jurnal Matematika dan Ilmu Pengetahuan Alam Unipa

PENGHILANGAN LIMBAH PESTISIDA TEBUKONAZOL DENGAN SISTEM FITOREMEDIASI MENGGUNAKAN ENCENG GONDOK (Eichhornia Crassipes) Purity Sabila Ajiningrum; Intan Ayu Kusuma Pramushinta
STIGMA: Jurnal Matematika dan Ilmu Pengetahuan Alam Unipa Vol 8 No 02 (2015)
Publisher : FMIPA : Universitas PGRI Adi Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36456/stigma.vol8.no02.a215

Abstract

Penelitian ini bertujuan untuk menganalisis kemampuan tanaman enceng gondok dalam mengurangi kandungan tebukonazol pada air limbah dan untuk menemukan konsentrasi maksimal tebukonazol dalam air limbah yang dapat diolah dengan metode fitoremediasi menggunakan tanaman enceng gondok. Analisis kemampuan tanaman enceng gondok meremediasi tebukonazol dengan penyiapan reaktor sebagai media tanam dengan konsentrasi tebukonazol yang berbeda yakni 1,0 ppm, 1,5 ppm dan 2,0 ppm. Masing-masing reaktor ditanami enceng gondok dengan jumlah yang sama dan kriteria yang sama pula. Dalam 2 minggu pengamatan tersebut diperoleh data tentang keberhasilan tanaman enceng gondok dalam meremediasi tebukonazol yakni pada masing-masing reaktor tersebut secara keadaan fisiologis tanaman mengalami kelayuan yang disebabkan adanya proses fitoremediasi oleh enceng gondok. Selain itu, didapatkan data HPLC yg menunjukkan penurunan konsentrasi tebukonazol dengan diketahui persentase removalnya sebesar 15,3 %.
KEANEKARAGAMAN JENIS TUMBUHAN OBAT-OBATAN DAN PEMANFAATANNYA BERDASARKAN PENGETAHUAN MASYARAKAT LOKAL DI KECAMATAN MALINAU UTARA KABUPATEN MALINAU KALIMANTAN TIMUR Purity Sabila Ajiningrum
STIGMA: Jurnal Matematika dan Ilmu Pengetahuan Alam Unipa Vol 10 No 01 (2017)
Publisher : FMIPA : Universitas PGRI Adi Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36456/stigma.vol10.no1.a588

Abstract

The objective of the study was to know local knowledge system of Dayak people in East Kalimantan. The data was collected using interview method to gather all information on plant diversity and it usage by the local society based on their own perception. The interview is using purposive sampling technique, conducted on the local society respondents whether male or female with a lifespan of 18 years or older. The number of respondents is 20% of the people in every sub district who took the Non Timber Forest Products (NTFPs) in the forest. The result of this research showed that many local people have a good knowledge about diversity surround them. Based on the results of interview, there were 31 plants species which were used as medication by the people. The factors relating to the cultural significance of plants would be discussed in detail in this article. Keywords: Timber Forest Products (NTFPs), Index of Cultural Significance (ICS), local society, interview
Aplikasi Sari Daun Kelor Sebagai Zat Pengatur Tumbuh Organik Terhadap Pertumbuhan Dan Kadar Klorofil Tanaman Kedelai (Glycine max (L.) Merr.) Fauziah Laily Amriyanti; Purity Sabila Ajiningrum
STIGMA: Jurnal Matematika dan Ilmu Pengetahuan Alam Unipa Vol 12 No 02 (2019)
Publisher : FMIPA : Universitas PGRI Adi Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36456/stigma.12.02.2050.82-88

Abstract

Soybean as a protein sources can fill the needs of public’s food increasily but the production in this country is still low. Therefore, cultivation efforts are needed to improve the growth and development of soybean plants. Some factors that are sufficient to influence the plant growth process are nutrient supply, water availability, sunlight, air temperature, oxygen and growth regulators. Plant Growth Regulator (PGR) that can be used is moringa leaves as a source of cytokinins. Cytokinin serves stimulating cell division, postpone the process of aging plants, and spur growth budding. This study aims to determine the effect of giving plant growth organic made by moringa leaves with 2 control, which are negative control (0%) and positive control (cytokinin synthetic solution) and 3 treatment at concentration of P1 (10%), P2 (20%), P3 (30%) to increase the growth soy plants and to know the concentration optimally of any treatment given. This research using the completely randomized design (CRD) with 5 treatment and 5 replicate. The results were analyzed using the ANOVA test followed by the LSD/BNT test and the Duncan test. The results showed that the application of organic PGR made from Moringa leaves had a significant effect (P <0.05) on growth (plant height and number of leaves) and chlorophyll content in soybean plants had optimal concentrations at 30% concentration. Keywords: moringa leaves, cytokinin, soybean plants, plant growth regulator.
Pengaruh Pemberian Pupuk Organik Cair Daun Lamtoro Dan Arang Sekam Padi Terhadap Hasil Produksi Tanaman Kedelai (Glycine max (L.) Merrill) Purity Sabila Ajiningrum; Intan Permata Sari
STIGMA: Jurnal Matematika dan Ilmu Pengetahuan Alam Unipa Vol 15 No 01 (2022)
Publisher : FMIPA : Universitas PGRI Adi Buana

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

Abstract

Fertilization is one of the important activities in the maintenance of soybean plants to obtain optimal growth and production. Soybeans really need nutrients N, P, and K to meet the needs of growth, flower formation and pod filling. The research was to determine the effect of liquid organic fertilizer from lamtoro leaves with the addition of rice husk charcoal media on the yield of the number of pods and pod weight of soybean plants. There were 5 treatments, namely negative control (0%), positive control (inorganic fertilizers), A1 (10%), A2 (20%), A3 (30%) in increasing the growth of soybean plants. The study used CRD with 5 treatments and 5 replications. The statistical test used the ANOVA test and the LSD / LSD test, then the Duncan test was performed. The results of the study showed that the administration of POC of lamtoro leaves and rice husk charcoal had a significant effect (P <0.05) on the yield (number of pods and pod weight) of soybean plants with an optimal concentration of 30%. Keywords: rice husk charcoal, leaf of lamtoro, liquid organic fertilizer, soybean
Peran Kulit Nanas Sebagai Bioaktivator Dan Penambahan Biochar Tempurung Kelapa Dalam Meningkatkan Hasil Produksi Tanaman Kedelai (Glycine max (L) Merrill) Andini Lutfiah; Purity Sabila Ajiningrum
STIGMA: Jurnal Matematika dan Ilmu Pengetahuan Alam Unipa Vol 13 No 02 (2020)
Publisher : Universitas PGRI Adi Buana Surabaya

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

Abstract

The low soybean production is caused by many limiting factors, including low soil fertility. This is influenced by the use of chemical fertilizers which is a trend among farmers. Therefore, to overcome the above problems is to utilize pineapple peel waste as a bio-activator and the addition of coconut shell biochar as a medium. This study aims to determine the effect of various concentrations of bioactivator waste from pineapple peels on growth, total chlorophyll content and soybean production. The method used is an experimental method carried out at the Green House of the Faculty of Science and Technology, Universitas PGRI Adi Buana Surabaya. The design used was a factorial design (6x5) arranged in a completely randomized design (CRD) consisting of 6 treatments. Treatment 1 was negative control (0%), treatment 2 positive control (EM4), treatment 3 bioactivators 10%, treatment 4 bioactivators 20%, treatment 5 bioactivators 30%, treatment 6 bioactivators 40%. Each treatment was repeated 5 times so that 30 experimental pots were needed. The results showed a significant effect on production at a concentration of 30%. Keywords : Soybean (Gycine max (L.) Merrill), Pineapple Skin Bioactivator, Coconut Shell Biochar
Keanekaragaman Tumbuhan Berpotensi Obat Di RPH Sekar Kabupaten Malang Purity Sabila Ajiningrum; Aisah Erviana
STIGMA: Jurnal Matematika dan Ilmu Pengetahuan Alam Unipa Vol 15 No 02 (2022)
Publisher : Universitas PGRI Adi Buana Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36456/stigma.15.02.6452.81-87

Abstract

The purpose of this study was to determine the value of the index of biodiversity and the value of the important index of medicinal plants that exist in the protected forest of RPH Sekar Malang. This study used the plot line method and was carried out in stages, namely sampling, determining the location path that had been surveyed and making measuring plots consisting of 8 plots with a distance of 100 m between plots with a plot size of 20m x 20m. The research data were analyzed using the diversity value index, vegetation analysis and descriptive utilization. Based on the results of the identification and determination of potential medicinal plants, 8 species of medicinal plants were found. The total number for the diversity value index is 1. This indicates that the medicinal plant diversity index in the RPH Sekar protected forest area is in the moderate category. The importance value index for the seedling category showed the highest yield in Piper aduncum of 20.167, the stake category was Centella asiatica with the highest score of 2.899 and for the pole and tree category the largest was shown in the same species, Dendrocnide stimulant with a pole value of 6.771 and a tree value of 13.15. Keywords; Diversity, Protected Forest, Medicinal Plants
Keaneragaman Tumbuhan Bawah Berpotensi Obat Di Jalur Pendakian Gunung Pundak Purity Sabila Ajiningrum; Neka Alfaz Hanubah; Fernando Mulatua Hanumangan Gultom; Rika Aulia Wardani
STIGMA: Jurnal Matematika dan Ilmu Pengetahuan Alam Unipa Vol 16 No 1 (2023)
Publisher : Universitas PGRI Adi Buana Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36456/stigma.16.1.7790.35-41

Abstract

This study aims to determine the diversity of medicinal plants on the Mount Pundak hiking trail. This research is quantitative descriptive research and data collection for this study used the plot method with a total of 8 plots at post 1 and 2 on the hiking trail with a size of 2m x 2m in each plot. Based on the results of observing the forest area of ​​the Mount Pundak hiking trail, there are 10 plant species in post 1 and 12 plant species in post 2. The total types of undergrowth that have medicinal potential are 16 types of data. This finding is based on a literature study on the analysis of medicinal plants. The species diversity index (H') in post 1 is 1.4530 and in post 2 (H') is 1.602, this shows that the diversity of medicinal plant species in the forest of Mount Pundak is moderate.
PEMANFAATAN BIOAKTIVATOR BONGGOL PISANG DAN PENAMBAHAN BIOCHAR ARANG SEKAM PADI TERHADAP PERTUMBUHAN TANAMAN KEDELAI (Glycine max L. Merril) var. anjasmoro Chisa Amanda, Adelia; Ajiningrum, Purity Sabila
STIGMA: Jurnal Matematika dan Ilmu Pengetahuan Alam Unipa Vol 16 No 2 (2023)
Publisher : Universitas PGRI Adi Buana Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36456/stigma.16.2.8467.68-73

Abstract

The provision of bioactivators is one of the cultivation techniques that can increase soybean production. Bioactivators that can be used are banana weevil with the addition of rice husk charcoal biochar. This study aims to determine the effect of banana weevil bioactivator with the addition of rice husk charcoal biochar with 2 controls, namely 0% negative control and positive control (em4 bioactivator) and 3 treatments namely P1 (10%), P2 (15%), P3 (20 %) in increasing the growth of soybean plants and to determine the optimal concentration of each treatment given. This study used a completely randomized design (CRD) with 5 treatments and 5 replications. The research data were then analyzed by using the ANOVA test followed by the LSD test and Duncan's test. The results showed that giving banana weevil bioactivators with the addition of rice husk charcoal Biochar had a significant effect (P <0.05) on the growth (plant height and number of leaves) of soybean plants with the optimal concentration in the P3 treatment with a concentration of 20%.   Keywords: bioactivator, biochar, soybean, banana weevil, rice husk
Antagonistic Activity of Pseudomonas fluorescens Against Curvularia sp. Causing Leaf Spot Disease in Maize Vivin Andriani; Purity Sabila Ajiningrum; Riza Putri Hanifah
STIGMA: Jurnal Matematika dan Ilmu Pengetahuan Alam Unipa Vol 18 No 01 (2025)
Publisher : Universitas PGRI Adi Buana Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36456/stigma.18.01.10320.%p

Abstract

Maize (Zea mays L.) is an important agricultural commodity in Indonesia, yet its production is often hindered by pathogenic infections, notably Curvularia sp., the causal agent of leaf spot disease. This study aimed to evaluate the antagonistic activity of Pseudomonas fluorescens against Curvularia sp. under in vitro conditions. The pathogenic fungus was isolated from infected maize leaves, while P. fluorescens was isolated from soil samples and identified through biochemical tests and pigment production on King’s B medium. Observations revealed that P. fluorescens produces fluorescent pigments, is an obligate saprophyte, and does not induce soft rot in potato tissue. Antagonism assays showed that the growth of Curvularia sp. was inhibited in the presence of P. fluorescens, as evidenced by fungal hyphae growing away from the bacterial colony. This inhibitory effect is likely due to antifungal secondary metabolites produced by P. fluorescens, including antibiotics, hydrogen cyanide, siderophores, and extracellular enzymes such as chitinase and cellulase, which degrade fungal cell walls. These findings suggest that P. fluorescens holds promise as a biocontrol agent for managing leaf spot disease in maize.   Keywords: Zea mays, Pseudomonas fluorescens, Curvularia sp., antagonism, leaf spot disease