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Pertumbuhan dan Perkembangan Bibit Rhyncostylis retusa L. (Bl.) (Orchidaceae) pada Konsentrasi Fosfor (P) Berbeda Nurfadilah, Siti
Buletin Kebun Raya Vol 16, No 1 (2013): Buletin Kebun Raya Vol. 16 (1) Januari 2013
Publisher : Center for Plant Conservation Bogor Botanic Garden, Indonesian Institute of Sciences

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Abstract

Phosphorous (P) is one of the essential minerals for plant growth and development.  The aim of this study is to investigate the effect of Phosphorous on Rhyncostylis retusa seedlings in in vitro culture and to investigate the optimum P concentration for growth and development of the plantlet. Protocorms derived from seed were inoculated on KC (Knudson C) media with a range of P concentrations (0 mM; 0.42 mM; 0.84 mM, and 1.2 mM). The result showed that phosphorus influenced the growth and the development of R. retusa seedlings. Growth and development of the seedlings were inhibited on control treatment (0 MM), while seedlings on P concentration of 0.42 mM; 0.84 mM, and 1.2 mM grew better.
Pertumbuhan dan Perkembangan Bibit Rhyncostylis retusa L. (Bl.) (Orchidaceae) pada Konsentrasi Fosfor (P) Berbeda Nurfadilah, Siti
Buletin Kebun Raya Vol 16, No 1 (2013): Buletin Kebun Raya Vol. 16 (1) January 2013
Publisher : Center for Plant Conservation Bogor Botanic Garden, Indonesian Institute of Sciences

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Abstract

Phosphorous (P) is one of the essential minerals for plant growth and development.  The aim of this study is to investigate the effect of Phosphorous on Rhyncostylis retusa seedlings in in vitro culture and to investigate the optimum P concentration for growth and development of the plantlet. Protocorms derived from seed were inoculated on KC (Knudson C) media with a range of P concentrations (0 mM; 0.42 mM; 0.84 mM, and 1.2 mM). The result showed that phosphorus influenced the growth and the development of R. retusa seedlings. Growth and development of the seedlings were inhibited on control treatment (0 MM), while seedlings on P concentration of 0.42 mM; 0.84 mM, and 1.2 mM grew better.
THE EFFECT OF CULTURE MEDIA AND ACTIVATED CHARCOAL ON ASYMBIOTIC SEED GERMINATION AND SEEDLING DEVELOPMENT OF A THREATENED ORCHID Dendrobium taurulinum J.J. Smith IN VITRO [Pengaruh Media Kultur dan Arang Aktif pada Perkecambahan Biji dan Perkembangan Seedling Anggrek Langka Dendrobium taurulinum J. J. Smith in vitro] Nurfadilah, Siti
BERITA BIOLOGI Vol 15, No 1 (2016)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3580.768 KB) | DOI: 10.14203/beritabiologi.v15i1.2857

Abstract

Seed germination and seedling development are an initial and crucial stage in the plant growth and development. Many factors influence seed and seedling development. The aim of the present study was to investigate the effects of different culture media (KC, VW, and MS) and the concentration of activated charcoal (0 g/l and 2 g/l) on asymbiotic seed germination and seedling development of a threatened  orchid, Dendrobium taurulinum. Results showed that germination occurred regardless of culture media type, however the percentage of seed germination was higher on media with 2 g/l activated charcoal (> 90 %) than on media without activated charcoal (0 g/l). After 12 weeks asymbiotic seed culture, seeds sown on media with 2 g/l activated charcoal grew and developed more rapidly to leaf-bearing protocorms (seedlings) compared to media without activated charcoal.The highest occurrence of advanced seedlings (stage 4, 89.77%) was  observed on MS medium with 2 g/l activated charcoal.
Effect of Seed Maturity and Storage Duration on Germination of Sambiloto (Andrographis paniculata) Solikin, Solikin; Nurfadilah, Siti
Biosaintifika: Journal of Biology & Biology Education Vol 9, No 2 (2017): August 2017
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v9i2.8782

Abstract

Seed maturity and its storage are one of problems on propagation and developing of medicinal plants such as sambiloto (Andrographis paniculata (Burm.f.) ex Nees). The research aimed to determine effects of seed maturity and storage duration on seed germination of sambiloto was conducted in a green house of Purwodadi Botanical Garden from November 2014 to November 2015. The experiment was done by completely randomised design with two treatments namely seed maturity and storage duration. The seed was classified into immature seed (0.061 g/100 seeds), semimature seed (0.113 g/100 seeds) and mature seed (0.166 g/100 seeds). The seeds storage duration was classified into seed was not stored, seed was stored for six months and seed was stored for twelve months. Each treatment combination was replicated five times. The results showed that there were significant interactions between the treatments on percentage and rate of seed germination. The highest percentage of seed germination was the treatment of mature seed and stored twelve months (98.50%). On the contrast, the lowest seed germination percentage was the treatment of immature seed and stored twelve months (4.25 %). The fastest seed germination rate was the treatment of mature seed and stored six months (3.88 days), whereas the slowest seed germination rate was the treatment of immature seed and without stored (28.58 days). This study is expected to be applied to improve genetic and cultivation of medicinal plant as well as increasing plant growth and yield.
PENERAPAN MEDIA GAMBAR UNTUK MENINGKATKAN HASIL BELAJAR SISWA TEMA SEJARAH PERADABAN INDONESIA KELAS V SDN KUPANG KRAJAN 1 SURABAYA Nurfadilah, Siti
Jurnal Penelitian Pendidikan Guru Sekolah Dasar Vol 5, No 3 (2017): JPGSD Vol 5, No 3 (2017)
Publisher : PGSD FIP UNESA

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Abstract

Abstrak : Dari hasil observasi di kelas VA SDN Kupang Krajan 1 Surabaya diperoleh data dari 35 siswa di kelas VA hanya terdapat 15 siswa atau 43 % yang nilainya mencapai KKM. Guru telah menggunakan media pembelajaran, namun media pembelajaran yang digunakan kurang menarik. Untuk mengatasi masalah tersebut, maka media gambar dipilih sebagai media pembelajaran untuk memudahkan siswa dalam memahami materi pembelajaran yang disampaikan oleh guru. Tujuan penelitian ini adalah mendeskripsikan aktivitas guru, aktivitas siswa dan hasil belajar siswa ranah pengetahuan, sikap dan keterampilan dengan menggunakan media gambar. Penelitian ini menggunakan rancangan penelitian tindakan kelas (PTK) yang dilaksanakan selama dua siklus dengan metode penelitian deskriptif kuantitatif. Hasil penelitian menunjukkan bahwa aktivitas guru mengalami peningkatan sebesar 10,77 %. Aktivitas siswa mengalami peningkatan sebesar 15,3 %. Rata – rata hasil belajar siswa mengalami peningkatan pada ranah pengetahuan sebesar 7,77, ranah sikap sebesar 3,32 dan ranah keterampilan sebesar 4,04. Ketuntasan belajar siswa secara klasikal juga mengalami peningkatan pada ranah pengetahuan sebesar 17,4 %, ranah sikap sebesar 5,71 % dan ranah keterampilan sebesar 11,43 %. Berdasarkan hasil penelitian tersebut dapat disimpulkan bahwa penerapan media gambar dapat meningkatkan hasil belajar siswa kelas V Tema Sejarah Peradaban Indonesia SDN Kupang Krajan 1 Surabaya. Kata Kunci: Media Gambar, Hasil Belajar
Biochemical Composition and Nutritional Value of Fresh Tuber of Water Yam (Dioscorea alata L.) Local Accessions from East Java, Indonesia Fauziah, Fauziah; Mas'udah, Shofiyatul; Hapsari, Lia; Nurfadilah, Siti
AGRIVITA, Journal of Agricultural Science Vol 42, No 2 (2020)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v0i0.2552

Abstract

Water yam (Dioscorea alata L.) is an important tuber crop containing essential nutrition as an alternative food source. This study aimed to analyze the biochemical composition and nutritional value of fresh tuber of fifteen local accessions of water yam from East Java and followed by the accession selection for the recommendation of accession with the best nutritional value. Results showed that the nutritional value of proximates including moisture, carbohydrate and fiber were significantly different; except in protein, fat, and ash, with the range of moisture (65.47-82.46%), carbohydrate (17.10-29.37%), protein (1.29- 3.00%), fat (0.00-0.29%), fiber (6.70-11.62%) and ash (0.85-1.44%). The ranges of mineral contents (mg/100g) were K (224.54-483.21), Ca (15.63-61.97), Mg (16.75-43.06), Fe (1.40-13.40), Zn (0.43-2.83) and P (329.37-699.91); Na mostly not detected. The anti-nutritions contents (mg/100g) comprised tannin (63.36-167.68) and oxalic acid (12.73-44.92). Analysis through HCA showed three clusters with a range of similarity from 67% to 96%; through PCA scatter biplot clearly illustrated the variation and correlation pattern among local accessions. Six promising accessions are recommended for further breeding and development i.e. Uwi Perti/30, Uwi Bangkulit/36, Uwi Bangkulit/42, Uwi Bangkulit/43, Uwi Biru/58 and Uwi Legi/66, based on their highest carbohydrates and protein content, and the lowest fat content.
Implementasi Ekstrakulikuler Pramuka Terhadap Penanaman Karakter Sikap Mandiri Peserta Didik di SDN Serang 21 Hendracipta, Nana; Rahayu, Rima Agusyulia; Nurfadilah, Siti; Yunira, Intan; Putri, Dea Oktadri Yanti; Damayani, Fina Aulia
Journal of Education Religion Humanities and Multidiciplinary Vol 1, No 2 (2023): Desember 2023
Publisher : CV. Rayyan Dwi Bharata

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57235/jerumi.v1i2.1443

Abstract

Penelitian ini bertujuan untuk menganalisis implementasi ekstrakurikuler Pramuka dan pengaruhnya terhadap penanaman karakter sikap mandiri peserta didik di SDN Serang 21. Metode penelitian yang digunakan adalah kualitatif deskriptif. Data diperoleh melalui observasi dan analisis dokumen, serta dianalisis menggunakan pendekatan kualitatif. Hasil penelitian menunjukkan bahwa implementasi ekstrakurikuler Pramuka telah memberikan kontribusi positif dalam membentuk sikap mandiri peserta didik. Pembina Pramuka yang berkualitas dan dukungan sekolah yang memadai merupakan faktor penting dalam meningkatkan pengaruhnya. Selain itu, program Pramuka yang berfokus pada pengembangan keterampilan, nilai-nilai moral, dan tanggung jawab sosial juga memainkan peran kunci dalam pembentukan karakter. Oleh karena itu, ekstrakurikuler Pramuka di SDN Serang 21 berpotensi menjadi alat efektif dalam penanaman sikap mandiri peserta didik.
Efektivitas Metode Filtrasi Pada Pengolahan Limbah Tambak Udang Di Sekolah Vokasi IPB University Putri Azistia, Alisa; Andira, Djenar; Kusuma Dewi, Fatma; Rezha Rizhkiawan, Rafcha; Yusafri Satria, Ridho; Nurfadilah, Siti; Angreani, Tiara; Wiyatin; Tribuana Tunggadewi, Andini; Alif Dirapraja, Muhammad
BULLET : Jurnal Multidisiplin Ilmu Vol. 3 No. 3 (2024): BULLET : Jurnal Multidisiplin Ilmu
Publisher : CV. Multi Kreasi Media

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Abstract

Shrimp farming produces wastewater as a byproduct. Wastewater management is necessary to reduce environmental pollution. The purpose of this study is to determine the effectiveness of filtration media using physical and chemical parameters as indicators.  The method applied is filtration by utilizing filter media in the form of silica sand, zeolite stone, greensand sand, manganese zeolite, bioball, and activated carbon.  Shrimp pond waste is flowed through three stages of filtration consisting of a pre-filter to increase pH, filter 1 to filter particles, and filter 2 to improve chemical parameters. The results showed that wastewater after the filtration process has a characteristic blackish turbid color and is odorless. Chemically, there was a decrease in pH from 8.8 to 5.4, a decrease in DO from 4.135 mg / L to 2.895 mg / L, and a decrease in hardness from 96.5 mg / L to 96 mg / L. The decrease in DO content and hardness occurs due to a reduction in the load of organic matter, while the decrease in pH is influenced by the interaction between contaminants and filtration media. Wastewater treatment with filtration methods has proven to be quite effective using predetermined materials.
URGENSI PENDIDIKAN ANTIKORUPSI MELALUI SOSIALISASI DI SDN 159 PEKANBARU DALAM MENCEGAH PEMBERANTASAN KORUPSI Nufus, Hayatun; Fatmasari, Dewi; Nurfadilah, Siti; Hudi, Ilham; Siahaan, Kartika Anggreany; Hikmah , Nur; Aini , Nur
Musyawarah: Jurnal Pengabdian Masyarakat Vol. 2 No. 2 (2024): Musyawarah: Jurnal Pengabdian Masyarakat
Publisher : Anfa Mediatama

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Abstract

Perkembangan psikologis siswa atau generasi muda akan dipengaruhi oleh pendidikan anti korupsi. Metode yang digunakan dalam penelitian ini adalah penyuluhan dan sosialisasi pendidikan antikorupsi di SDN 159 Pekanbaru. Untuk penyuluhan ini, terdapat tiga tahap rencana kegiatan. Pertama adalah persiapan, yang mencakup perijinan, koordinasi, dan sosialisasi dengan SDN 159 Pekanbaru. Tahap kedua adalah pelaksanaan, yang mencakup sosialisasi dan penyuluhan. Tahap ketiga adalah evaluasi dan pembuatan laporan kegiatan. Sosialisasi dan penyuluhan pendidikan anti-korupsi dilaksanakan melalui diskusi dan wawancara tentang pemahaman dan penerapan prinsip – prinsip antikorupsi.
PENGARUH PERTUMBUHAN PERUSAHAAN, STRUKTUR MODAL DAN CORPORATE SOCIAL RESPONSIBILITY TERHADAP NILAI PERUSAHAAN Nurfadilah, Siti; hasanah, neneng
Jurnal Nusa Akuntansi Vol. 2 No. 2 (2025): Jurnal Nusa Akuntansi Volume 2 Nomor 2 Mei Tahun 2025
Publisher : Publika Citra Media

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62237/jna.v2i2.249

Abstract

This research aims to examine the influence of company growth, capital structure and corporate social responsibility on firm value in energy sector mining companies listed on the Indonesia Stock Exchange in 2019-2023. The population in this study was 87 companies with the observation year 2019-2023. The sample selection in this study used purposive sampling technique. The number of samples obtained was 11 companies with 5 years of research, so that 55 observation data were obtained. The data analysis technique used is multiple regression analysis using e-views version 12 software. The results of the research show that the variables Company Growth, Capital Structure and Corporate Social Responsibility simultaneously influence Firm Value. Partial company growth has no effect on firm value. Capital Structure has a significant effect on Firm Value. Corporate Social Responsibility has no effect on Firm Value.