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All Journal Jurnal Pendidikan Sains Jurnal Edukasi Universitas Jember Saintifika ARABIYAT Jurnal Pendidikan Biologi BIOEDUKASI LENSA (Lentera Sains): Jurnal Pendidikan IPA ORBITA: Jurnal Pendidikan dan Ilmu Fisika Indonesian Journal of Biology Education Jurnal Ilmu Dakwah BIOSFER : Jurnal Biologi dan Pendidikan Biologi Jurnal FARMAKU (Farmasi Muhammadiyah Kuningan) ScienceEdu : Jurnal Pendidikan IPA Optika : Jurnal Pendidikan Fisika JIPB (Jurnal Inovasi Pembelajaran Biologi) Wasilatuna: Jurnal Komunikasi dan Penyiaran Islam Proceeding Biology Education Conference TRANSPUBLIKA INTERNATIONAL RESEARCH IN EXACT SCIENCES (TIRES) International Journal on Advanced Technology, Engineering, and Information System (IJATEIS) Pancaran Pendidikan SAINTIFIKA Cita Kara: Jurnal Penciptaan dan Pengkajian Seni Murni
Mochammad Iqbal
Pendidikan Biologi FKIP Universitas Jember
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Journal : SAINTIFIKA

 1 
PENGEMBANGAN ALAT KONDENSASI PENGUKUR OKSIGEN UDARA AMBIEN UNTUK MENDUKUNG PRAKTIKUM PADA MATA KULIAH PENGETAHUAN LINGKUNGAN Rahmat Bayu; Joko Waluyo; Mochammad Iqbal
saintifika Vol 20 No 1 (2018)
Publisher : FKIP Universitas Jember

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Abstract

At present it is using digital air measurements using much better analytical functions in the field using digital measurements that have accuracy weaknesses. Developing a condensation device into the air oxygen meter uses two methods: prioritizing Saltzman and Winkler, this corresponds to the contents in the air directly with air and oxygen. Development of atmospheric atmospheric condensation equipment for example ambient air oxygen concentration measuring generator, carried out with the R2D2 development model with a calibration process based on independent sample test Calibration T-test error test with digital titration and electrochemical methods, In addition to the significance of the measurement result is sig value 0.280 > 0, 05 and the calibration measurement results of the tool developed with a digital meter tool obtained the significance of the results that the sig value of 0.254 > 0.05 there was no difference between several samples using the method used.
PENGARUH KOMBINASI BAKTERI ENDOFIT TERHADAP PERTUMBUHAN KOPI ARABIKA (Coffeae arabica L.) YANG TERSERANG Pratyenchus coffeae Dian Ineke Damayanti; Iis Nur Asyiah; Mochammad Iqbal
saintifika Vol 19 No 1 (2017)
Publisher : FKIP Universitas Jember

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Abstract

Endophytic bacteria are the most preferred biological agents in the last period to control Pratylenchus coffeae parasitic nematodes in coffee plants Endophytic bacteria are able to control P. coffeae and increase plant growth. The results of the application of endophytic bacteria can be increased through a combination application. This study aims to determine the effect of a combination of endophytic bacterial isolates isolated from a coffee plantation from Kalibendo garden on the growth of Arabica coffee seedlings attacked by P. coffeae nematode. The study used isolates of endocytic bacteria Micrococcus luteus, Micrococcus sp. and Bacillus sp. the density of 109 cfu in two-month Arabica coffee plant seeds with 9 treatments, 4 replications and 3 sub-replication for 4 months of research. The results showed that a combination of endophytic bacterial isolates was able to significantly increase the growth of Arabica coffee plant seeds.
ISOLASI DAN IDENTIFIKASI Azotobacter DARI RHIZOSFER TANAMAN KOPI (Coffea canephora) YANG TERSERANG NEMATODA PARASIT Pratylenchus coffeae Aditya Tanjung Yulitaasary; Iis Nur Asyiah; Mochammad Iqbal
saintifika Vol 19 No 2 (2017)
Publisher : FKIP Universitas Jember

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Abstract

Azotobacter is one group of aerobic bacteria that colonizes root surfaces and is able to produce glyceroline promoting substances, cytokines and Indole Acetate Acid (IAA). Azotobacter can be found in the rhizosphere of various types of plants, such as soy rhizosphere (Glycinemax L.), rhizosphere palm (Elaeis guineensis), coffee (Coffea arabica), and corn (Zea mays). Rhizosphere is a soil zone that surrounds the roots of plants where biology and soil chemistry are affected by roots. This zone has a width of about 1 mm. In this study rhizosphere used is rhizosphere coffea Robusta plant. The purpose of this research is to know the isolated Azotobacter isolate from the rhiszosphere of Robusta coffee plant which attacked by Pratylenchus coffeae parasite parasite from Kalibendo plantation, Banyuwangi. The type of research used is explorative research. In this research successfully obtained 5 bacterial isolates. The result showed that from isolate isolate, 4 isolates were genus Azotobacter while 1 isolate was not known.
Toksisitas Ekstrak Terpurifikasi Daun Buas-Buas (Premna serratifolia L.) terhadap Mortalitas Larva Nyamuk Culex sp. Ulmiyatul Alifiah Zahroh; Dwi Wahyuni; Mochammad Iqbal
saintifika Vol 24 No 1 (2022)
Publisher : FKIP Universitas Jember

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Abstract

Culex sp. is a vector of filariasis. Vector control mostly uses chemical insecticides which have a negative impact. Buas-buas plants (Premna serratifolia L.) are one of the plants that have the potential as an alternative to the use of chemical insecticides that have been widely used (as botanical insecticides). Buas-buas leaves (Premna serratifolia L.) contain alkaloids, flavonoids, saponins, and tannins. This study aimed to test the toxicity of the purified extract of buas-buas leaf (Lethal concentration 50) on the mortality of Culex sp. larvae with an exposure time of 24 hours. Serial concentrations of purified extract used were 850, 1350, 1850, 2350, and 2850 ppm with four repetitions. Each treatment used 20 Culex sp. late three to early four instars. Toxicity testing of Culex sp. gives an LC50 result of 1799.77 ppm..
Co-Authors Adi, Widi Cahya Aditya Tanjung Yulitaasary Aditya Tanjung Yulitaasary Alfarisi, Muhammad Hanif Avishia Prisma Yulivarta Bakti, Anugrah Arya Dian Ineke Damayanti Dian Ineke Damayanti Drs. I Wayan Mudana,M.Si. . Duran Corebima Aloysius Dwi Wahyuni Dwi Wahyuni Erika Arifiana Icananda Fransiska Iis Nur Asyiah Imam Mudakir indar aning saputri Indrawati Indrawati Indri Pratiwi, Indri Indriyani Idris Joko Waluyo Joko Waluyo Lestari, Wahyuning Putri Luh Putu Ratna Sundari Maghfiroh, Lailiyah Muhammad Choirin Nur Fatoni, Nur Nurhayatina, Rina Pramudya Dwi Aristya Putra Putri Novitasari Rahmat Bayu Rahmat Bayu Resti Kinanthi Retno Dwi Purwaningsih Rindi Antika Rizka Maulidya Cahyani Rosyida Adinia Rozana, Kennis Ruta, I Made S Suratno Sekar Arum Mawarni Sindi Ayu Astari Siti Nailatul Farkhah Siti Zubaidah Slamet Hariyadi Slamet Hariyadi Supeno Suratno Suratno Susriyati Mahanal Sutarto Sutarto Ulin Nuha Ulmiyatul Alifiah Zahroh Ulmiyatul Alifiah Zahroh Umi Kulsum Uswatun Hasanah Wachju Subchan Wachju Subchan Wati, Ana Taqwa