Growth of Two Native Zoysiagrasses Collected from Sea Side and Mountain Area in Indonesia on Growing Media Composed of Sand and Clay

Rahayu,Hery Dewantoro,Dwi Priyo Arianto,배은지,최수민,이광수,양근모,최준수 한국잔디학회 2018 Weed & Turfgrass Science Vol.7 No.1

Zoysiagrass (Zoysia spp.) exists spotly in Indonesia and it has potential to be used in parks, golf courses, and football fields. Many football fields and golf course fairways use sand as top soil over native soil. This study aims to analyze growth and quality of two native zoysiagrasses Zis and Zim. Zis is a native zoysiagrass collected in sea-side and Zim is a native zoysiagrass collected in mountain area. Both types of zoysiagrasses were planted at field with altitude of 300 m with various growing media mixes of sand and reservoir’s sediment. Thickness of the growing medium was 10 cm over an alfisol clay soil. Experimental plots were constructed using factorial completely randomized design with two native zoysiagrasses and 5 types of growing media. Two ecotypes of native zoysiagrasses showed different in growth habits combined with mixtures of growth media. Zim showed higher growing speed including more vigor with uniformity and texture than Zis. There were not significanthly differences on leaf color and root length between two ecotypes of native zoysiagrasses collected in Indonesia.

Study of Root Zone Thickness and Growth Response of Zoysia japonica, Zoysia matrella, and Paspalum vaginatum

Rahayu,Sahrul Nugroho,양근모 한국잔디학회 2022 Weed & Turfgrass Science Vol.11 No.3

The thickness of a root zone is still a basis for football field constructors for good field performance along with saving root zone material. This research is a column pot experiment and placed in an open space to know the thickness of the root zone that is acceptable with the variable warm season grasses growth. The root zone used was a mixture of loamy sand, 75% sand, 10% soil, and 15% compost with a thickness of 15, 20, 25, and 30 cm. The grasses used were Zoysia japonica, Zoysia matrella, and Paspalum vaginatum and planted with sprigging, maintenance of watering, fertilization, and manual weed control. Harvesting was done after the plant is 34 weeks after planting. The results showed that the thickness of the root zone 25 and 30 cm had the same results on shoot density, time to 100% ground coverage, recovery rate from damage, plant height, clipping weight, root length, plant fresh weight, and root dry weight, and efficiency of use air. In all thicknesses of the root zone, Paspalum vaginatum had the highest yield on shoot density, 100% ground coverage, recovery power, plant height, cutting weight, root volume, leaf fresh and dry weight, root fresh and dry weight, and air efficiency.

Effects of Interruption Layer for Capillary Rise on Salt Accumulation and Kentucky Bluegrass (Poa pratensis L.) Growth in Sand Growing Media over the Reclaimed Saline Soil

Rahayu,최준수,양근모 한국잔디학회 2010 Weed & Turfgrass Science Vol.24 No.2

This research was conducted to determine the effect of interruption layer for capillary rise on the sand based growing media when growing Kentucky bluegrass on soil reclamation and saline water irrigation. Growing media profile consists of three layers as top soil of 30 cm, 20 cm of the interruption layer for capillary rise and 10 cm of reclaimed paddy soil. Growing media profile was packed in 30 cm diameter column pots. The top soil was a mixture of sand dredged up from Lake Bhunam Tae Ahn, Korea and peat at the ratio of 95:5 by volume. Bottom part of column was covered with plastic net and the pots were soaked into 5 cm depth saline water reservoir with salinity 3-5 dS m-¹. Kentucky bluegrass was established by sod and irrigated using 2 dS m-¹ saline water (5.7 mm day-¹) in 3 days interval. The results showed that the largest accumulation of salt in the spring with electrical conductivity in saturated extract (ECe) of 5.4 dS m-¹ and sodium absorption ratio (SAR) 34.0 in growing media without the interruption layer for capillary rise and ECe of 4.6 dS m-¹ and SAR 8.24 at growing media using gravel as the interruption layer for capillary rise material. The interruption layer for capillary rise of gravel and coarse sand reduced the accumulation of Na by 16%and 25%, ECe by 7% and 13% in the growing media. Visual quality of Kentucky bluegrass was higher in growing media with the interruption layer for capillary rise of gravel than no interruption layer by 8.3 compared to 7.9 in rates. The interruption layer for capillary rise of gravel and coarse sand enhanced the visual quality by 4.1 and 4.0%, root length by 50 and 38%, and root dry weight by 35 and 17% of Kentucky bluegrass, and reduced the accumulation of Na by 16% and 25%, ECe by 7% and 13% in the growing media.

Growth of Zoysiagrass and Seashore Paspalum on Volcano Eruption Sand and Clayey Soil with Organic and Inorganic Fertilizers in Indonesia

Rahayu,Hidayatuz Zuamah,양근모,최준수 한국잔디학회 2014 Weed & Turfgrass Science Vol.3 No.3

This study was carried out to determine the possible use of volcano eruption sand at Merapi mountain areacompared with clayey soil, alfisol as turfgrass growing media. Indonesia has abundant source of eruption sand and clayey soil. Native zoysiagrass (Z. matrella) was collected from Sleman district and seashore paspalum (P. vaginatum) from Solo region. Theexperimental plots were treated with both organic and inorganic fertilizers. Zoysiagrass and seashore paspalum can grow on themixture of eruption volcano sand and alfisol soil. Fertilizers application increased turf color, surface coverage rate and recoveryrate of turfgrass. While fertilizer treated alfisol have no effect on the length and dry weight of zoysiagrass root. Mixing of volcanoeruption sand on growing media resulted in longer root length, higher shoot dry weight of zoysiagrass than in alfisol soil. Type offertilizer affected the pH, soil organic matter, total N, available P, available K and electrical conductivity of sand and alfisol aftercultivation. Similarly to zoysiagrass, the recovery of seashore paspalum was increased by application of fertilizer, even theinorganic fertilizer showed faster recovery than organic fertilizer. Surface coverage of seashore paspalum was faster than that ofzoysiagrass with or without fertilizer.

Effects of Salinity Level and Irrigation Rate on Kentucky Bluegrass (Poa pratensis L.) Growth and Salt Accumulation in Sand Growing Media Established Over the Reclaimed Saline Soil

Rahayu,최준수,양근모 한국잔디학회 2011 Weed & Turfgrass Science Vol.25 No.1

The purpose of this study was to obtain information on rates and salinity levels of irrigation for growth of Kentucky bluegrass by minimizing the hazard of salt accumulation in the sand based growing medium. Root zone profile consists of 20 cm sand based top soil, 20 cm of coarse sand as layer to interrupt capillary rise and 10 cm of reclaimed paddy soil as a base of the root zone profile. Topsoil was a mixture of dredged sand and peat with a ratio of 95%: 5% by volume. The columns were soaked into 5 cm depth saline water reservoir with salinity level of 3-5 dSm^(-1). Salinity levels of irrigation water were 0, 2 and 3 dSm^(-1). Irrigation rates were 3.8, 5.7 and 7.6 mm day^(-1) which were equivalent to 70%, 100% and 130% of average ET (evapotranspiration) rate of Kentucky bluegrass, and irrigation interval was 3 days. Salt accumulation was due to irrigated water and moved up water from shallow water base. At the end of second year, the accumulation of salt in the rootzone showed ECe of 3.86, 4.7 and 5.1 dSm^(-1), and SAR of 19.2,23.9 and 27.5 when the salinities were 0, 2 and 3 dS m^(-1), respectively. Irrigation rates of 100% and 130% of ET rate with saline water did not decrease ECe and SAR in growing media. The growth of KBG was influenced by irrigation rate in the 1^(st) year, however, salinity level was more critical in the 2^(nd) year. Compared to non-saline water, saline water of 2 and 3 dS m^(-1) resulted in decreased visual quality by 3.2% and 16.5%, by 6.4% and 39.3% in clipping weight, and by 5.5% and 5.0% in root mass, respectively.

Effects of different intensities of exercise on folliculogenesis in mice: Which is better?

Fitri Kurnia Rahayu1,Sri Ratna Dwiningsih,Ashon Sa’adi,Lilik Herawati 대한생식의학회 2021 Clinical and Experimental Reproductive Medicine Vol.48 No.1

Objective: Exercise is a risk factor for infertility in women. However, research on the effects of different intensities of exercise on folliculogenesis has not yielded clear results. This study was conducted to analyze the effects of differences in the intensity of exercise on folliculogenesis in mice. Methods: Nineteen female BALB/c mice (age, 3–4 months; weight, 13–25 g) were randomly divided into four groups: control, mild exercise, moderate exercise, and high-intensity exercise. The mice in the exercise groups engaged in swimming, with additional loads of 3%, 6%, or 9% of body weight, respectively. There were five swimming sessions per week for 4 weeks, with a gradually increasing duration every week. At the end of the treatment, ovarian extraction was carried out and hematoxylin and eosin staining was performed to identify folliculogenesis. Results: There were significant differences in the number of total follicles between the control and moderate-exercise groups (p=0.036) and between the mild- and moderate-exercise groups (p=0.005). The mean number of primary follicles was higher in the moderate-exercise group than in the mild-exercise group (p=0.006). The mean number of secondary, tertiary, and Graafian follicles did not differ significantly among groups (p≥0.05). However, the number of total follicles and follicles in each phase tended to increase after exercise, especially moderate-intensity exercise. Conclusion: Exercise of different intensities affected the total number of follicles and primary follicles. The number of follicles of each phase tended to increase after exercise. Moderate-intensity exercise had better effects than other intensities of exercise.

Slide Session : OS-IFD-08 ; Infectious Disease : West Nile Virus (WNV) as a Potential New Threat to HIV/AIDS Patients in Indonesia

( Nasronudin ),( Bimo Aksono ),( Bimo D Lukito ),( Brian E Rachman ),( Noordiansyah ),( Retno Indrawati ),( Retno P Rahayu ),( M Inge Lusida ) 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1

NASRONUDIN1, Bimo AKSONO1, Bimo D LUKITO4, Brian E RACHMAN2, NOORDIANSYAH7, Retno INDRAWATI1, Retno P RAHAYU1, M Inge LUSIDA1 Institute of Tropical Disease, Airlangga University, Indonesia1, Medical Faculty Airlangga University - Dr Soetomo Hospital, Indonesia2, Medical Faculty Airlangga University - Dr Soetomo Hospital, Indonesia3, Medical Faculty Airlangga University - Dr Soetomo Hospital, Indonesia4, Faculty of Dentistry, Airlangga University, Indonesia5, Faculty of Dentistry, Airlangga University, Indonesia6, Airlangga University Hospital, Indonesia7 Background: WNV is a mosquito-borne zoonotic arbovirus, belongs to the genus Flavivirus in the family Flaviviridae. Although WNV infection in human has been reported for decades in several parts of the world, but it was diagnosed recently in 2014 in Indonesia. Approximately 80% of WNV infections in humans do not develop any symptoms. Elderly or those with immunosuppression, such as HIV/AIDS, are at greater risk for serious illness. Phylogenetic analysis has divided WNV into mainly Lineage 1(L1) and Lineage 2 (L2), which is geographically specifi c. Aims: To determine and phylogenetic analyse of WNV on HIV/AIDS Patients. Methods: The subjects were HIV/AIDS patients in Airlangga University Hospital. Examination of blood samples were performed in Institute of Tropical Disease Airlangga University. This study has been approved by Ethical Committee. A total of 30 HIV/ AIDS patients were enroled after obtainined informed consent, and examined for WNV RNA using RT-PCR in the envelope region (408 bps). Results: The results showed that 8 (25.81%) of 30 HIV/AIDS patients were WNV positive. The phylogenetic of one WNV strain in this study showed that it belongs to the L2. Only recently were those strains of L2 identifi ed outside of Africa. Conclusions: We found WNV as one of the potential coinfections in HIV/AIDS patients in Indonesia, and therefore it may in other countries too. Phylogenetic analysis of one strain revealed that the virus clustered in the lineage 2.

Growth of Zoysiagrass and Seashore Paspalum on Volcano Eruption Sand and Clayey Soil with Organic and Inorganic Fertilizers in Indonesia

Rahayu, Rahayu,Zuamah, Hidayatuz,Yang, Geun-Mo,Choi, Joon-Soo The Korean Society of Weed ScienceThe Turfgrass So 2014 Weed & Turfgrass Science Vol.3 No.3

This study was carried out to determine the possible use of volcano eruption sand at Merapi mountain area compared with clayey soil, alfisol as turfgrass growing media. Indonesia has abundant source of eruption sand and clayey soil. Native zoysiagrass (Z. matrella) was collected from Sleman district and seashore paspalum (P. vaginatum) from Solo region. The experimental plots were treated with both organic and inorganic fertilizers. Zoysiagrass and seashore paspalum can grow on the mixture of eruption volcano sand and alfisol soil. Fertilizers application increased turf color, surface coverage rate and recovery rate of turfgrass. While fertilizer treated alfisol have no effect on the length and dry weight of zoysiagrass root. Mixing of volcano eruption sand on growing media resulted in longer root length, higher shoot dry weight of zoysiagrass than in alfisol soil. Type of fertilizer affected the pH, soil organic matter, total N, available P, available K and electrical conductivity of sand and alfisol after cultivation. Similarly to zoysiagrass, the recovery of seashore paspalum was increased by application of fertilizer, even the inorganic fertilizer showed faster recovery than organic fertilizer. Surface coverage of seashore paspalum was faster than that of zoysiagrass with or without fertilizer.

Growth of Two Native Zoysiagrasses Collected from Sea Side and Mountain Area in Indonesia on Growing Media Composed of Sand and Clay

Rahayu, Rahayu,Dewantoro, Hery,Arianto, Dwi Priyo,Bae, Eun-Ji,Choi, Su-Min,Lee, Kwang-Soo,Yang, Geun-Mo,Choi, Joon-Soo The Korean Society of Weed ScienceThe Turfgrass So 2018 Weed & Turfgrass Science Vol.7 No.1

Zoysiagrass (Zoysia spp.) exists spotly in Indonesia and it has potential to be used in parks, golf courses, and football fields. Many football fields and golf course fairways use sand as top soil over native soil. This study aims to analyze growth and quality of two native zoysiagrasses Zis and Zim. Zis is a native zoysiagrass collected in sea-side and Zim is a native zoysiagrass collected in mountain area. Both types of zoysiagrasses were planted at field with altitude of 300 m with various growing media mixes of sand and reservoir's sediment. Thickness of the growing medium was 10 cm over an alfisol clay soil. Experimental plots were constructed using factorial completely randomized design with two native zoysiagrasses and 5 types of growing media. Two ecotypes of native zoysiagrasses showed different in growth habits combined with mixtures of growth media. Zim showed higher growing speed including more vigor with uniformity and texture than Zis. There were not significanthly differences on leaf color and root length between two ecotypes of native zoysiagrasses collected in Indonesia.

Supporting Policies to catalyze e-Business Development in Indonesia

Rahayu, Rochani Nani Asian pacific women's information network center 2006 APWIN Vol.8 No.-

This paper describe the current situation on supporting policies to catalyze e-business and technology information development in Indonesia. Some national initiatives such as community access point called Warintek, digital library, human development training on ICT, have been developed in cooperation with The State Ministry for Research and Technology and Centre for Scientific Documentation and Information (PDII -LIPI). Furthermore, new initiation for using open source have been declared through IGOS declaration. The State Ministry for Women Empowerment concerns to the development of women economic productivity, through their programme called DESA PRIMA (Perempuan Indonesia Maju Mandiri/Indonesian women moving forward/income generating activity programme for women). The Department of Communication and Information Technology is still on their preparation for e-bussines/e-commerce, and e-government programmes. The most popular programme from this department is a Community Acces Point called WARUNG MASIF. The Ministry of Cooperative and SME's also has participated in this field by providing TRADING BOARD. All these activities are in line with various international declaration on ICT such as WSIS, and WSSD.