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PENGARUH KEKERINGAN PADA TANAH BERGARAM NaCl TERHADAP PERTUMBUHAN TANAMAN NILAM Anna Median Kurniasari; Adisyahputra Adisyahputra; Rosihan Rosman
Buletin Penelitian Tanaman Rempah dan Obat Vol 21, No 1 (2010): BULETIN PENELITIAN TANAMAN REMPAH DAN OBAT
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/bullittro.v21n1.2010.%p

Untuk mengetahui pengaruh keke-ringan pada tanah bergaram NaCl terhadap pertumbuhan tanaman nilam (Pogostemon cablin Benth.) telah dila-kukan penelitian di rumah kaca Balai Pene-litian Tanaman Obat dan Aromatik (Balittro) Bogor pada Juni sampai November 2007. Faktor yang diuji adalah : 1) keadaan tanah, terdiri atas 2 taraf (keadaan lembap dan kering); dan 2) kadar garam NaCl tanah terdiri atas 3 taraf (0, 1.000, dan 2.000 ppm). Faktor-faktor yang diuji tersebut disusun dalam ran-cangan acak lengkap dengan 10 ulangan. Sedangkan parameter yang diamati meli-puti komponen tinggi tanaman, jumlah daun, jumlah buku, jumlah cabang, dia-meter batang, serta bobot basah dan kering biomas. Hasil penelitian menun-jukkan bahwa faktor keadaan dan kadar garam NaCl tanah mempengaruhi pertum-buhan tanaman nilam. Pengaruh interaksi antara kedua faktor tersebut hanya dijum-pai pada komponen diameter batang. Pada kondisi tanah kering, kadar garam NaCl 1.000 ppm atau lebih sangat nyata meng-hambat pertumbuhan diameter batang, tetapi tidak berpengaruh ketika tanah cukup lembap (basah). Kedua faktor secara individu berpengaruh nyata ter-hadap komponen pertumbuhan lainnya pada tanaman nilam. Keadaan tanah basah nyata lebih baik pengaruhnya ter-hadap perkembangan tanaman dibanding tanah dengan keadaan kering. Demikian pula kadar garam NaCl tanah yang semakin meningkat ternyata semakin memperburuk pertumbuhan dan perkembangan tanaman nilam.

PENGARUH KEKERINGAN PADA TANAH BERGARAM NaCl TERHADAP PERTUMBUHAN TANAMAN NILAM Anna Median Kurniasari; Adisyahputra Adisyahputra; Rosihan Rosman
Buletin Penelitian Tanaman Rempah dan Obat Vol 21, No 1 (2010): BULETIN PENELITIAN TANAMAN REMPAH DAN OBAT
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/bullittro.v21n1.2010.%p

Untuk mengetahui pengaruh keke-ringan pada tanah bergaram NaCl terhadap pertumbuhan tanaman nilam (Pogostemon cablin Benth.) telah dila-kukan penelitian di rumah kaca Balai Pene-litian Tanaman Obat dan Aromatik (Balittro) Bogor pada Juni sampai November 2007. Faktor yang diuji adalah : 1) keadaan tanah, terdiri atas 2 taraf (keadaan lembap dan kering); dan 2) kadar garam NaCl tanah terdiri atas 3 taraf (0, 1.000, dan 2.000 ppm). Faktor-faktor yang diuji tersebut disusun dalam ran-cangan acak lengkap dengan 10 ulangan. Sedangkan parameter yang diamati meli-puti komponen tinggi tanaman, jumlah daun, jumlah buku, jumlah cabang, dia-meter batang, serta bobot basah dan kering biomas. Hasil penelitian menun-jukkan bahwa faktor keadaan dan kadar garam NaCl tanah mempengaruhi pertum-buhan tanaman nilam. Pengaruh interaksi antara kedua faktor tersebut hanya dijum-pai pada komponen diameter batang. Pada kondisi tanah kering, kadar garam NaCl 1.000 ppm atau lebih sangat nyata meng-hambat pertumbuhan diameter batang, tetapi tidak berpengaruh ketika tanah cukup lembap (basah). Kedua faktor secara individu berpengaruh nyata ter-hadap komponen pertumbuhan lainnya pada tanaman nilam. Keadaan tanah basah nyata lebih baik pengaruhnya ter-hadap perkembangan tanaman dibanding tanah dengan keadaan kering. Demikian pula kadar garam NaCl tanah yang semakin meningkat ternyata semakin memperburuk pertumbuhan dan perkembangan tanaman nilam.

Correlation of comprehension reading skill and higher-order thinking skill with scientific literacy skill of senior high school biology teacher Asih Susiati; Adisyahputra Adisyahputra; Mieke Miarsyah
Biosfer: Jurnal Pendidikan Biologi Vol 11 No 1 (2018): Biosfer: Jurnal Pendidikan Biologi
Publisher : Universitas Negeri Jakarta

The aim of this research was to determine the correlation between comprehension reading skill and higher-order thinking skill with scientific literacy skill for senior high school biology teacher. This research was conducted in Kabupaten Bekasi using 64 senior high school biology teachers as samples. Samples were taken by using Simple Random Sampling. The method used in this research was descriptive quantitative and research hypothesis tested by Pearson Product Moment in Î±=0,05. The results obtained correlation coefficient value between: comprehension reading skill with scientific literacy skill is 0.280; higher-order thinking skill with scientific literacy skill is 0.252; comprehension reading skill and higher-order thinking skill simultaneously with scientific literacy skill is 0.321. Coefficient of determination test showed that: 7,8% of comprehension reading skill contribute to scientific literacy skill; 6,4% of higher-order thinking skill contribute to scientific literacy skill; 10,3% of comprehension reading skill and higher-order thinking skill contribute to scientific literacy skill. Hope this result research can be a basic reference for further research.

Correlation between higher-order thinking skills and level of intelligence with scientific literacy on junior high school students Putri Emilia Yuriza; Adisyahputra Adisyahputra; Diana Vivanti Sigit
Biosfer: Jurnal Pendidikan Biologi Vol 11 No 1 (2018): Biosfer: Jurnal Pendidikan Biologi
Publisher : Universitas Negeri Jakarta

Scientific literacy is the major purpose in learning science for 15 year-old students before they learn science in separated field such as physics, biology, and chemistry. The aim of this research was to determine the correlation between higher-order thinking skillS and level of intelligence with scientific literacy on junior high school students. This research involved 189 students grade IX in East Jakarta as the samples. The method used in this research was descriptive quantitative and using multiple correlation to test the hypothesis. The writer collected the data by utilizing PISA 2009â€™s scientific literacy test and Kamalia 2011â€™s higher order thinking skills test. Research hypothesis tested by Pearson Product Moment correlation with Î±=0,05. Coefficient of correlation was 0,350, it means that there was positive correlation between comprehension reading skill, higher-order thinking skill, and level of intelligence with scientific literacy on junior high school students

Correlation between integrated science process skills, and ability to read comprehension to scientific literacy in biology teachers students Gina Handayani; Adisyahputra Adisyahputra; Reni Indrayanti
Biosfer: Jurnal Pendidikan Biologi Vol 11 No 1 (2018): Biosfer: Jurnal Pendidikan Biologi
Publisher : Universitas Negeri Jakarta

Scientific literacy is define as the capacity of use scientific knowledge in order to understand and help make decision about the natural world and the changes made it through human activity. Teachers are a major factor in the success of learning, therefore it is necessary to test the scientific literacy skill of biology teacher students. This study aims to find out science literacy of biology teacher students and the corellation between of integrated science process skill, and reading comprehension skill of biology teacher students to their scientific literacy skill. The method for this research used the survey method with correlational studies. The sample of this research is 81 students of biology teacher students of Jakarta State University. The results shows that the scientific literacy of biology education students is destitute. It is shown from the average score of their scientific literacy skill which is 45.58. This study shows that correlation coefficient obtained is 0,457 which means that there is correlation between integrated science process skill with scientific literacy skill. This study also shows that there is correlation between reading comprehension skill with with scientific literacy skill which correlation coefficient obtained is 0,214.

Eco-friendly website development in biology learning based on project activities on environmental pollution Upi Fitriani; Adisyahputra Adisyahputra; Ratna Komala
Biosfer: Jurnal Pendidikan Biologi Vol 11 No 1 (2018): Biosfer: Jurnal Pendidikan Biologi
Publisher : Universitas Negeri Jakarta

This research aimed to develop eco-friendly website in Biology learning which based on project activities for environmental pollution based on the National Curriculum. This Research and Development (R & D) using Borg and Gall strategy. The research data was gathered using quality evaluation eco-friendly website questionnaire, portfolio assessment sheet, pretest and posttest questions, studentâ€™s respond questionnaire, and interview sheet. Data analysis and discussion result has proved that (1) the eligibility of eco-friendly website based on the evaluation of the content expert, media expert and peer reviewer is excellent; based on the studentâ€™s evaluation, good. (2) The ability of studentâ€™s cognitive increased after having the Biology class activities in the eco-friendly project. Based on this research result, it is suggested to have further research to know the effectiveness of the eco-friendly website implementation toward the increase of studentâ€™s interests and learning motivation and other research variables. Moreover, eco-friendly website can be developed into a mobile application which can be accessed in any Android and iOS gadgets.

Different Farmers Knowledge about Managing Soils Based on Educational Degree and Participation in Farmer Group Organization (A Descriptive Study on Sukatani and Wates Jaya Villages) Rani Dwi Destiyani; Adisyahputra Adisyahputra; Diana Vivanti Sigit
Biosfer: Jurnal Pendidikan Biologi Vol 7 No 2 (2014): Biosfer: Jurnal Pendidikan Biologi
Publisher : Universitas Negeri Jakarta

Managing soils is a beneficial effort allowing plants to grow and have dense fruit as well as to avoid them from damaging. Lack of knowledge about soil management may be related to poor soil management performance. To identify differences on farmers knowledge about managing soils based on their educational degree and participation in farmer group organization, this research was conducted on Villages of Sukatani, Cianjur and Wates Jaya, Bogor from November to December 2012. A descriptive method with survey technique was used. Knowledge score using a multiple-choice test was obtained from 89 samples selected by simple random sampling. In prerequisite testing, data was found homogenous but in abnormal distribution. Therefore, the hypothesis testing then was carried out with non-parametric tests. The average comparative rate of farmers knowledge based on educational degree using the Kruskal-Wallis test showed a non significant differences (p > Î± at 0.393 > 0.05). This occurred because farmers gained the knowledge through parental manner. Similarly, the average comparative rate of farmers knowledge based on their participation in farmers organization using the Mann-Whitney U test also showed a non-significant differences (p > Î± at 0.770 > 0.05). This happened because the farmers did not receive information delivered by the organization appropriately or they did not use the organization as a source of information in managing the soils. As the conclusion, educational degree and participation in organization did not cause differences to farmers knowledge of soil management.

Keragaman Karakter Morfologi, Komponen Hasil, dan Hasil Plasma Nutfah Kedelai (Glycine max L.) Priskilla Purnaning Putri; Adisyahputra Adisyahputra; Asadi Asadi
Bioma Vol 10 No 2 (2014): Bioma
Publisher : Biologi UNJ Press

Abstract Soybean (Glycine max L.) is annual crop that have high morphologies and yield components diversity. The research was conducted at the first season of 2011, the objective of the research were to find morphological, yield, and yield component of Soybean germplasm (Glicine max L.). The research was carried out at experimental station BB-BIOGEN Citayam, Depok, and laboratory of Gene Bank BB-BIOGEN. The experiment used randomized block design with 100 different accessions and three replications for each accession. Based on the observation, the morphological characters have many visual forms. They are as follows: growth percentage in which 19.33 â€“ 99%; growth types were determinate and indeterminate, the leave form was triangle to sharp; purple and white flowers; yellow and black seeds color. The range of values for each characteristic component are as follows: plant height 29,23 â€“ 104,25 cm; number of pods per plant was 23,6 â€“ 99,82; flowering time 33 â€“ 47 days after planting; 100 seed weight 5,98 â€“ 20,77 gram; maturing time 75 â€“ 96,67 days after planting; root noduleâ€™s weight 0,004 â€“ 0,109 gram; seedâ€™s weight 3,15 â€“ 11,45 gram/plant. Among the accessions, the highest yield was shown by B 4323 (643,27 gram/3,6 m2). Significant correlation was shown between soybeanâ€™s yield components and yield which were plantâ€™s height, growth percentage, numbers of main stemâ€™s node, numbers of pods, seeds weight for each plant and root noduleâ€™s weight. 100 seeds weight showed significant negative correlation with soybean components. Key words: germplasm, morphological characteristics, soybean, yield components

Synthesis and Characterization of Cual Batik Waste Dyes From Photocatalysis Using TiO2 From Ilmenite Bangka Fuspita Istiqomah; Verry Andre Fabiani; Adisyahputra Adisyahputra
Stannum : Jurnal Sains dan Terapan Kimia Vol 3 No 2 (2021): Oktober 2021
Publisher : Department of Chemistry - Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jstk.v3i2.2199

Cual batik is one of the local products of the Bangka Belitung Islands. The expansion of cual batik in Bangka Belitung continues to increase, resulting in an increase in the production of cual batik cloth. Cual batik contains remasol dyes which are carcinogenic so that waste handling is appropriate and safe for the surrounding environment. One of them is using the TiO2 photocatalytic method from ilmenite Bangka. The results of XRF characterization showed that the TiO2 content after magnetic separator and HCl washing reached 69,975% and 77,260%. The results of XRD characterization showed that the optimal temperature of calcination was at 700ºC with the peak diffraction intensity of anatase TiO2 crystals at 2θ 48.9º, 53.53º and 53.92º. In FTIR characterization, there is a functional group spectrum of titanium dioxide (TiO2) at the absorption wave number 795 cm-1 showing Ti-O-Ti stretching vibrations, at wavenumber 2326 cm-1 showing Ti-O stretching vibrations. The results of photodegradation of cual batik waste showed a decrease in the dye content of remazol briliant blue when exposed to UV lamps and sunlight at contact times of 30, 60, and 90 minutes 85.21%, 82,75%, and 86,72% (UV light); 70,75%, 78,92%, and 93.51% (sunlight).

Upaya Preventif Masyarakat Srimenanti dari COVID-19 melalui Pembagian Masker dan Handsanitizer Adisyahputra Adisyahputra; Robby Gus Mahardika; Gita Afriza
Dharma Pengabdian Perguruan Tinggi (DEPATI) Vol 1 No 1 (2021): Mei 2021
Publisher : Fakultas Teknik, Universitas Bangka Belitung

Indonesia is currently being shaken by the COVID-19 pandemic, which has infected thousands of people and even died. The government has given an appeal to the community to reduce the spread of the COVID-19 virus. However, not many people have complied with the government's appeal. Especially in Srimenanti Village, very few people know how dangerous the COVID-19 virus is. Therefore it is necessary to understand the health protocol for breaking the COVID-19 chain. Based on these problems, the authors carry out community service through Real Work Lecture (KKN) activities with the theme COVID-19, the method used to support public safety against COVID-19, namely in the form of distribution of masks and hand sanitizers also educating the public about COVID-19. The results show that people who previously did not care about the pandemic are currently progressing and are more concerned about themselves and those around them. Evidenced by always using a mask and hand sanitizer when leaving the house.

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