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PENGARUH PEMBERIAN DOSIS DOLOMIT TERHADAP PERTUMBUHAN DAN HASIL TANAMAN JAGUNG (Zea mays. L) DI LAHAN GAMBUT Netti Herawati; Nasrez Akhir; Tasya Noor Aina; Silvia Permata Sari
Agros Journal of Agriculture Science Vol 25, No 2 (2023): edisi April
Publisher : Fakultas Pertanian, Universitas Janabadra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37159/jpa.v25i2.2756

Abstract

This research is about the effect of dolomite dosing on the growth and yield of maize (Zea mays L.) on peat soil. This research aimed to obtain the best dose of dolomite on the growth and yield of maize (Zea mays L.) on peat soil. This research was conducted at Matobe Village, Hamlet of Sosoroat, South Sipora District, Mentawai Island. This study used the experimental method in a Randomized Block Design (RBD) with 3 levels of treatment (without using dolomite; 2 ton/ha dolomite; 4 ton/ha dolomite) so that 9 experimental units were obtained. The research data were analyzed statistically using F-test at 5% level. If F count is greater than F table 5%, then proceed with Duncan’s New Multiple Range Test (DNMRT) at the 5% real level. The result showed that the best dose of dolomite on the growth and yield of maize (Zea mays L.) on peat soil was 2 ton/ha dolomite which significantly affected plant height, cob diameter, and the amount of line in each cob.INTISARIPenelitian ini tentang pengaruh pemberian dosis dolomit terhadap pertumbuhan dan hasil tanaman jagung (Zea mays) di lahan gambut. Penelitian ini bertujuan untuk mendapatkan dosis terbaik dari kapur dolomit terhadap pertumbuhan dan hasil tanaman jagung di lahan gambut. Penelitian ini dilaksanakan di Desa Matobe Dusun Sosoroat, Kecamatan Sipora Selatan, Kabupaten Kepulauan Mentawai. Penelitian ini menggunakan metoda percobaan dalam Rancangan Acak Kelompok (RAK) dengan 3 taraf perlakuan (tanpa pemberian kapur dolomit; 2 ton/ha kapur dolomit; 4 ton/ha kapur dolomit) sehingga didapatkan 9 satuan percobaan. Data hasil penelitian dianalisis secara statistik dengan uji F pada taraf 5%. Jika F hitung lebih besar dari F tabel 5%, maka dilanjutkan dengan uji Duncan’s New Multiple Range Test (DNMRT) pada taraf nyata 5%. Hasil penelitian menunjukkan bahwa dosis kapur dolomit terbaik untuk tanaman jagung (Zea mays L.) di lahan gambut adalah dosis 2 ton/ha yang berpengaruh nyata terhadap tinggi tanaman, diameter tongkol, dan jumlah baris per tongkol
PENGARUH DOSIS ARANG AKTIF TERHADAP PERKECAMBAHAN EMBRIO SOMATIK KEDELAI (Glycine max L.) Gustian Gustian; Etti Swasti; Nandita Samaralya Tori; Silvia Permata Sari
Agros Journal of Agriculture Science Vol 25, No 4 (2023): edisi Oktober
Publisher : Fakultas Pertanian, Universitas Janabadra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37159/jpa.v25i4.3561

Abstract

Soybeans (Glycine max L.) are a type of leguminous food crop that is important as a source of protein and vegetable oil, making them a good potential for human growth. Efforts that can be made to increase production and productivity while reducing imports and soybean development include the assembly of superior varieties through tissue culture, with regeneration through somatic embryogenesis. Somatic embryos that have been produced are matured to obtain seedlings by adding activated charcoal. This research aims to determine the effect and the appropriate dosage of activated charcoal for the germination of somatic embryos of soybeans. The research was conducted in the Tissue Culture Laboratory of the Faculty of Agriculture, Andalas University, Padang, from May to August 2023. The research was arranged in a completely randomized design (CRD) with five treatment levels of activated charcoal dosage, namely 1, 1.5, 2, 2.5, and 3 g/l. The data were analyzed using a 5% level F test, and if the calculated F was greater than the Pr(>F), it was followed by a post hoc test using Duncan's Multiple Range Test (DMRT) at a 5% significance level. The results of the research show that the addition of activated charcoal to the media can germinate somatic embryos of soybean plants. In the media containing 2 g/l of activated charcoal, seedlings emerged at 27.15 days after sowing (DAS), and 96.67% of somatic embryos germinated.  Keywords: Activated charcoal, germination, somatic embryo, soybean INTISARIKedelai (Glycine max L.) merupakan tanaman pangan jenis polong polongan yang penting sebagai sumber protein dan minyak nabati, sehingga memiliki potensial yang baik untuk pertumbuhan tubuh manusia. Upaya yang dapat dilakukan untuk meningkatkan produksi dan produktivitas dalam menekan jumlah impor dan pengengembangan kedelai yaitu dengan perakitan varietas unggul melalui kultur jaringan yang regenerasinya melalui embriogenesis somatik. Embrio somatik yang telah dihasilkan dilakukan maturasi untuk mendapatkan kecambah dengan metode penambahan arang aktif. Penelitian ini bertujuan untuk mengetahui pengaruh dan dosis arang aktif yang tepat untuk perkecambahan embrio somatik kedelai. Penelitian dilaksanakan di Laboratorium Kultur Jaringan Fakultas Pertanian Universitas Andalas Padang, pada Mei sampau Agustus 2023. Penelitian disususn dalam Rancangan acak lengkap (RAL) dengan 5 taraf perlakukan dengan dosis arang aktif 1, 1,5, 2, 2,5, dan 3 g/l. Data dianalisis menggunakan uji F taraf 5%, jika F hitung lebih besar dari Pr(>F) maka dilanjutkan dengan uji lanjut dengan menggunakan Duncan Multipel Range Test (DMRT) pada taraf 5%. Hasil penelitian menunjukan bahwa pemberian arang aktif pada media dapat mengecambakan embrio somatik tanaman kedelai. Pada media yang mengandung 2 g/l arang aktif menunjukan waktu muncul kecambah pada 27,15 HST dan 96,67% embrio somatik berkecambah. Kata Kunci: Arang aktif, perkecambahan, embrio somatik, kedelai
Hubungan Pemahaman Tentang Bioteknologi Dengan Strategi Coping Stress Mahasiswa Tadris Biologi IAIN Kerinci Dalam Menerima Vaksin Covid-19 Silvia Permata Sari; Dharma Ferry; Emayulia Sastria
Symbiotic: Journal of Biological Education and Science Vol. 4 No. 1 (2023): Symbiotic: Journal of Biological Education and Science Vol. 4 No. 1 April 2023
Publisher : Fakultas Tarbiyah dan Ilmu Keguruan, Institut Agama Islam Negeri Kerinci

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32939/symbiotic.v4i1.100

Abstract

The government's plan to vaccinate the Indonesian population for Covid-19 has encountered obstacles due to the emergence of hoaxes regarding the Covid-19 vaccine. Several students of Biology Department of IAIN Kerinci who have contracted biotechnology courses, that some of these students have not dared to be vaccinated against Covid-19 because they were affected by the Covid-19 vaccine hoax. The research was conducted on students who had contracted biotechnology courses at the Biology Department of IAIN Kerinci, using quantitative methods and correlational approaches. From the results of the study, it was found that the level of understanding of students' biotechnology was in a low category, namely 42.85% with a frequency of 27 respondents. Meanwhile, students' stress coping strategies in receiving the Covid-19 vaccine were in the high category, namely 84.12% with a frequency of 53 respondents. The results of the correlation analysis show a significance value of 0.007 and it means that there is a relationship between the two variables in this study, but the interpretation of the correlation is categorized as low with a correlation coefficient value of 0.335. This means that increasing understanding of biotechnology will affect the improvement of students' stress coping strategies in receiving the Covid-19 vaccine.