Article Per Year (5 Year)
p-Index From 2019 - 2024
1.325
P-Index
This Author published in this journals
All Journal HAYATI Journal of Biosciences Biogenesis: Jurnal Ilmiah Biologi Biology, Medicine, & Natural Product Chemistry Jurnal Pengabdian Kepada Masyarakat (Indonesian Journal of Community Engagement) Jurnal Biodjati
Dwi Umi Siswanti
Faculty Of Biology, Universitas Gadjah Mada
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Earth & Planetary Sciences Immunology & microbiology Medicine & Pharmacology Public Health

Published : 13 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 13 Documents
Search

 1   2 
Pertumbuhan Tiga Kultivar Padi (Oryza sativa L.) Terhadap Aplikasi Pupuk Bio Cair dan Kondisi Tanah Pertanian Pasca Erupsi Merapi 2010 Umi Siswanti, Dwi; Rachmawati, Diah
Biogenesis Vol 1, No 2 (2013)
Publisher : Jurusan Biologi UIN Alauddin Makassar

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

Abstract

The eruption of Mount Merapi at the end of 2010, which resulted in the destruction of land and crops are changing wetland into dry land. Sleman which is located south of Mount Merapi became one of the areas that most affected by the eruption of Merapi in 2010. It is necessary to improve the processing of soil physical properties of degraded areas and efforts to restore agricultural soil nutrient. Returning soil nutrients can be cultivated with the addition of organic material or the addition of microbes. The research aims to analyze the growth of three cultivars of rice (Oryza sativa L.) againstthe application of biofertilizer in paddy fields were affected by the eruption of Merapi in 2010. These three rice cultivars are Situbagendit, Inpari 20 and Ciherang. This research was conducted by applying the biofertilizer as much as 10 liters / ha were given three times during the vegetative phase, ie: 7, 21and 35 days after planting. The results of this research indicate that the three rice varieties ie: Situbagendit, Ciherang and Inpari 20 have an optimal growth and an increase in soil nutient content in biofertilizer application.Keywords: biofertilizer, degraded land, Merapi eruption, rice
Respons Fisiologis Padi (Oryza sativa L.) “Segreng” dan “Menthik Wangi” Terhadap Aplikasi Pupuk Organik Cair dan Dekomposer Umi Siswanti, Dwi; Virgiyana Agustin, Rega
Biogenesis Vol 2, No 2 (2014)
Publisher : Jurusan Biologi UIN Alauddin Makassar

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

Abstract

The background of the community services at Sruni (a part of Wukirsari village) is our concern in degraded land at around of Mount Merapi after eruption 2010. Researcher encourages people of Wukirsari village to self-sufficient in the supply of organic manure for their fields. It is intended to restore the soil nutrients to improve the soil structure. The target of this activity are increasing agricultural productivity, production costs and improving the efficiency of agricultural cultivation. The conclution of this research and community services are biofertilizer producted by Sruni’s people response positively to the growth of rice plants especially in combination between biofertilizer and vegetative and generative decomposers. The combination of biofertilizer and vegetative decomposers gives the effect of increase of leaf chlorophyll content in both varieties of rice plants (Menthik Wangi and Segreng). The combination also gives a striking response to the increase in Activity of Nitrate Reductase (ANR) of the flag of leaf of Segreng plants. Overall ,Researchers have implementing more than 90% of the planned activities in this grant.Keywords: biofertilizer, decomposers, degraded land, Menthik Wangi, rice, Segreng
Grain Quality of Rice (Oryza sativa L.) ‘Menthik Wangi’ of Organic Farming Yields Dwi Umi Siswanti; Maryani Maryani; Fitria Yulia Rachmawati; Aprida Niken; Rega Virgiyana Agustin; Niken Wulansari
HAYATI Journal of Biosciences Vol. 28 No. 2 (2021): April 2021
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.28.2.105

Abstract

Organic rice is believed to have better nutrition than conventional rice. Not all organic rice grain is consumed. Most of the organic cultivation yields will be used as seed. Viability test is one of the quality test of rice seed. Viability is seed vitality that can be shown as a physiological and biochemical phenomenon. Seed that have high vigor will achieve high productivity levels as well. The aims of this research was to analyze the quality of rice cultivar Menthik Wangi of organic farming yields. The quality of rice seeds was tested by measuring the viability of seed and crude fat content. The test results demonstrate the viability of the grain has a 100% germination, 100% growth potential maximum, 99.33%, simultaneity grew, 97.33% vigor index, T50 2.33, and seed moisture content 10.67%. The fat content was conducted by soxhlet method and analyzed by T-test. The results showed that organic rice has a higher fat content (0.53%) than non-organic rice (0.24%). It can be concluded that rice seed cultivar Menthik Wangi of organic farming has a higher viability and fat content than the non-organic rice grain.
Growth Rate and Capsaicin Level of Curly Red Chili (Capsicum annum L.) on Biofertilizer and Biogas Sludge Application Dwi Umi Siswanti; Melinda Fajar Lestari
Jurnal Biodjati Vol 4, No 1 (2019): May
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/biodjati.v4i1.4216

Abstract

Curly red chili (Capsicum annum L.) is widely cultivated us-ing inorganic fertilizers which causes high production costs. Chili is valued because of the level of spiciness. The level of spiciness of chili is determined by the level of capsaicin which is affected by nutrients in the growing media. The nutrient of the planting media can be fulfilled by degrading the growing media by microbes in organic fertilizer. One type of organic fertilizer containing degrading microbes is biofertiliz-er. Biofertilizer and biogas sludge is one of the organic fertilizers con-taining microbes and organic materials that are able to support nutri-ent levels of the planting medium. This study aimed to analyze growth parameters include chlorophyll content and measure capsaicin levels in curly red chili. Which given biofertilizer and biogas sludge in vari-ous dosage and determine the optimum dose of the fertilizer. The study was conducted at an agricultural demonstration plot in Wukirsari Vil-lage, Cangkringan, Sleman. The study design used RCBD (Randomized Complete Block Design), the data were analyzed by ANOVA (Analysis of Variance followed by Duncan’s Multiple Distance Test (DMRT) at the 95% confidence level. The highest growth parameters and capsa-icin content were obtained on curly red chili plants which were given biogas sludge 36 mL + biofertilizer 10 L / ha. The application of bi-ofertilizer and biogas sludge in various concentrations given has not been able to increase the average total chlorophyll content of curly red chili plants. Thus, it can be concluded that the most appropriate dose of curly red chili is 36 mL biogas sludge + 10 L bio fertilizer/ha
Pertumbuhan Tiga Kultivar Padi (Oryza sativa L.) Terhadap Aplikasi Pupuk Bio Cair dan Kondisi Tanah Pertanian Pasca Erupsi Merapi 2010 Dwi Umi Siswanti; Diah Rachmawati
Biogenesis: Jurnal Ilmiah Biologi Vol 1 No 2 (2013)
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.v1i2.456

Abstract

The eruption of Mount Merapi at the end of 2010, which resulted in the destruction of land and crops are changing wetland into dry land. Sleman which is located south of Mount Merapi became one of the areas that most affected by the eruption of Merapi in 2010. It is necessary to improve the processing of soil physical properties of degraded areas and efforts to restore agricultural soil nutrient. Returning soil nutrients can be cultivated with the addition of organic material or the addition of microbes. The research aims to analyze the growth of three cultivars of rice (Oryza sativa L.) againstthe application of biofertilizer in paddy fields were affected by the eruption of Merapi in 2010. These three rice cultivars are Situbagendit, Inpari 20 and Ciherang. This research was conducted by applying the biofertilizer as much as 10 liters / ha were given three times during the vegetative phase, ie: 7, 21and 35 days after planting. The results of this research indicate that the three rice varieties ie: Situbagendit, Ciherang and Inpari 20 have an optimal growth and an increase in soil nutient content in biofertilizer application.Keywords: biofertilizer, degraded land, Merapi eruption, rice
Respons Fisiologis Padi (Oryza sativa L.) “Segreng” dan “Menthik Wangi” Terhadap Aplikasi Pupuk Organik Cair dan Dekomposer Dwi Umi Siswanti; Rega Virgiyana Agustin
Biogenesis: Jurnal Ilmiah Biologi Vol 2 No 2 (2014)
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.v2i2.472

Abstract

The background of the community services at Sruni (a part of Wukirsari village) is our concern in degraded land at around of Mount Merapi after eruption 2010. Researcher encourages people of Wukirsari village to self-sufficient in the supply of organic manure for their fields. It is intended to restore the soil nutrients to improve the soil structure. The target of this activity are increasing agricultural productivity, production costs and improving the efficiency of agricultural cultivation. The conclution of this research and community services are biofertilizer producted by Sruni’s people response positively to the growth of rice plants especially in combination between biofertilizer and vegetative and generative decomposers. The combination of biofertilizer and vegetative decomposers gives the effect of increase of leaf chlorophyll content in both varieties of rice plants (Menthik Wangi and Segreng). The combination also gives a striking response to the increase in Activity of Nitrate Reductase (ANR) of the flag of leaf of Segreng plants. Overall ,Researchers have implementing more than 90% of the planned activities in this grant.Keywords: biofertilizer, decomposers, degraded land, Menthik Wangi, rice, Segreng
Produktivitas Tanaman padi (Oryza sativa L.) Segreng Terhadap Aplikasi Sludge Biogas di Lahan Sawah Desa Wukirsari, Cangkringan, Sleman Dwi Umi Siswanti; Akrima Syahidah; Sudjino Sudjino
Biogenesis: Jurnal Ilmiah Biologi Vol 6 No 1 (2018)
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.v6i1.4241

Abstract

Rice (Oryza sativa L.)  is a main crop agriculture in Indonesia. Biogas sludge is the residue of cattle during processing in the biogas that has lost its gas and rich with macro elements – N, P and K as well as micro elements such as Ca, Mg, Fe, Mn, Cu and Zn. Biogas sludge has not been well utilized by the citizens. This study examined the productivity of rice cultivars Segreng to biogas sludge application on field. The objective of this research was to find the best dose of sludge and to study the productivity of rice cultivars Segreng after sludge application on crop field. Research was conducted in 100 m2 of field. The biogas sludge concentration used in this research was 5 variations; (1) 0 ml, (2) 1000 ml, (3) 2000 ml, (4) 3000 ml, dan (5) 4000 ml. The planting system used is TAJARWO. The productivity parameter measured were Nitrate Reductase Activity (NRA), dry weight, number of grain per plant and grain weight. Environment parameters were temperature, pH, humidity and light intensity. The data was analyzed with ANOVA and followed by DMRT at significant level of 5%. The results revealed that the highest rice productivity was seen in treatment 2000 ml sludge/100m2 with 31 gr of dry weight, 483 number of grains per plant and 30.000 kg/100m2 of grain weight. The best sludge dose present on 2000 ml/100m2.
Effect of biofertilizer and salinity stress on productivity and vitamin C levels of Amaranthus tricolor L. Nadhifa Athaya Khairunnisa; Dwi Umi Siswanti
Biogenesis: Jurnal Ilmiah Biologi Vol 9 No 2 (2021)
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.v9i2.21629

Abstract

Abiotic stress is one of the elements that affect plant crop output due to its productivity and environmental factors. Salinity as abiotic stressors can impair plant growth, becoming a concern in the agriculture field in recent years. Biofertilizers are reported to be capable of overcoming salinity stress. Hence, it contains microbial elements in it, play a role for the nitrogen cycle in soil, which can result in increased plant growth. Therefore, this study aimed to analyze the effect of biofertilizer and NaCl as a salinity stress factor on the growth of Amaranthus tricolor L. The biofertilizer doses utilized in this study were 10 L/ha, 20 L/ha and 30 L /ha, each in combination with basic manure fertilizer. For the salinity factor, NaCl concentrations of 2500 ppm, 5000 ppm, 7500 ppm, and 10.000 ppm were employed. Environmental characteristics, plant height, number of leaves, root length, plant dry mass, chlorophyll and carotenoid content, as well as vitamin C, were all measured. The parameters were determined quantitatively. The chlorophyll and carotenoid contents were determined using a UV-vis spectrophotometer, while vitamin C levels were determined using iodometric titration. At a 95% level of confidence, the results were examined using the one-way ANOVA approach. The results indicate that a 30 L/ha dose of biofertilizer has an effect on the chlorophyll content and root length of plants, whereas a 10 L/ha dose has an effect on the carotenoid content. The highest amaranth growth was observed when 0 L/ha biofertilizer was combined with a 7500 ppm NaCl treatment, whereas the largest number of leaves was shown when 10 L/ha biofertilizer was combined with a 2500 ppm NaCl treatment. It could be concluded that while biofertilizer has no effect on plant growth parameters, it does increase plant productivity by raising chlorophyll and carotenoid levels.
Physiological Response of 'Segreng' Rice Plant (Oryza sativa L.) to Biogas Sludge at Wukirsari Village, Cangkringan, Sleman Dwi Umi Siswanti; Nindy Senissia Asri; Mifta Arlinda; Arianda Poetri Shofia Rochman; Akrima Syahidah
Biology, Medicine, & Natural Product Chemistry Vol 7, No 1 (2018)
Publisher : Sunan Kalijaga State Islamic University & Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (417.704 KB) | DOI: 10.14421/biomedich.2018.71.21-26

Abstract

Wukirsari Village, Cangkringan District is belong to Merapi Mountain’s slopes which located between the Gendol River and Yellow River. Nowadays, we faced the problem of anorganic fertilizer overused such as Urea, ZA, TSP/SP-36 and KCl in agriculture land. The effort to return the soil organic compound can be done by added some organic compounds or microbial bio -organic fertilizer. Sludge is fermented biodigester yield and it has lost its gas. The aim of this research was to understand the physiological response and optimum dose of biogas as planting medium to ‘Segreng’ Rice planted in the rice field of Wukirsari Village, Cangkringan District, Sleman Regency. This research was done on greenhouse scale and rice field scale. The treatment given on 0; 1; 1,5; 2 and 2,5 liters per 100 m2 of rice field areas, and given on 0; 4; 8; 12; and 24 ml per 5 kg soil on polybags. Data were taken in three repetitions. The vegetative growth parameters included plant height, number of leaves, number of seedlings and chlorophyll content, while generative growth parameters measured included NRA levels, dried biomass including crown/stem, roots, filled grains, empty grains, and total weight and number of filled grains, empty rains, and the number of panicles. The result were tested with ONE WAY ANOVA (Analysis of Variance) with SPSS version 19 for Windows and followed by Duncan's Multiple Range Test with 95% significance level (α = 0.05). Generally, the result showed that biogas sludge can increase the vegetative and generative growth of rice plant ‘Segreng’ on polybag scale and rice field scale. The rice plant on polybag with 4 ml biogas sludge was significantly different on the vegetative growth and chlorophyll content, while the rice plant on polybag with 8 ml biogas sludge was significantly different on the generative growth and NRA levels.
Pertanian Organik Terpadu di Desa Wukirsari, Sleman, Yogyakarta Sebagai Usaha Pemulihan Kesuburan Lahan Terimbas Erupsi Merapi 2010 dan Pencapaian Desa Mandiri Sejahtera Dwi Umi Siswanti
Jurnal Pengabdian kepada Masyarakat (Indonesian Journal of Community Engagement) Vol 1, No 1 (2015): September
Publisher : Direktorat Pengabdian kepada Masyarakat Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (471.956 KB) | DOI: 10.22146/jpkm.16954

Abstract

Community service activities at Wukirsari village was preceded by many concerns land damaged by the eruption of Merapi 2010. Researchers encourage Wukirsari people to self-sufficient in the provision of liquid organic fertilizer and manure plus. It is intended to restore the soil nutrient that improves soil structure. The target of this activity were increasing the agricultural productivity, cost efficiency of production, improvement of agricultural cultivation, encouraging self-sufficiency of liquid organic fertilizer and manure plus and the establishment of agricultural enterprises. The conclusion of these program are the liquid organic fertilizer producted by Wukirsari farmer response positively to the growth and productivity of rice plants. The barriers of this program was delayed of the establishment of business entities will be overcome with the implementation of the third period (2015) of the community service program which cooperate with the Student Community Service Program (KKN PPM UGM).
Co-Authors Akrima Syahidah Akrima Syahidah Anindita Della Rosa Riyadi Aprida Niken Arianda Poetri Shofia Rochman Dea Hastaning Tantri Dedy Kurnianto Diah Rachmawati Eko Agus Suyono Fitria Yulia Rachmawati Hamdian Hamdian Hasna Nur Aini Khusnul Qonita Maghfiroh Marshanda Nur Roosyana Afifah Maryani Maryani Melinda Fajar Lestari Melinda Fajar Lestari Mifta Arlinda Nadhifa Athaya Khairunnisa Niken Wulansari Nindy Senissia Asri Rega Virgiyana Agustin Rega Virgiyana Agustin Rega Virgiyana Agustin Ria Amelia Sudjino Sudjino Tia Erfianti Utaminingsih Utaminingsih Wisnu Eka Wardana