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Mikania micrantha Kunth leaf Methanol Extract as Bioherbicide Againts The Growth of Amaranthus spinosus L. Weeds Parwati, Heni; Mukarlina, Mukarlina; Linda, Riza
Jurnal Biologi Tropis Vol. 24 No. 3 (2024): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i3.7428

Abstract

The presence of weeds on plantation land causing a decrease in growth and productivity of cultivated plants. Thorny amaranth (Amaranthus spinosus L.) is broadleaf weeds that have high competitiveness. This study aims to determine the influence of the application of bitter vine (Mikania micrantha Kunth) leaf extracts against the growth of thorny amaranth and the best concentration that can inhibit the growth of thorny amaranth weed. This study has been carried out for October 2023 - March 2024 in the Biology Screen House and Chemistry Laboratory, Faculty of Mathematics and Natural Sciences, Tanjungpura University. This study used a completely randomized design (CRD) with four levels concentration treatment of bitter vine leaf extracts with five replications. The treatment consisted of bitter vine leaf extract with a concentration 0% (0g/ml) as a control, 15% (0,15 g/ml), 20% (0,2 g/ml) and 25% (0,25 g/ml). Data was analysed using Kruskal Wallis test followed by Mann-Whitney test. The results showed giving bitter vine leaf extracts can inhibited the growth of thorny amaranth weeds. Application of bitter vine leaf extract concentration 15% was the best treatment that can inhibited the growth of thorny amaranth on parameters weeds height (2,53 cm), number of leaves (2,65 strands), root length (1,74 cm), wet weight (0,13 grams) and dry weight (0,01 grams). 
Potensi Antagonis Bakteri Pelarut Fosfat Asal Tanah Gambut terhadap Bakteri Xanthomonas sp. Penyebab Kanker Daun Tanaman Jeruk Siam Pontianak Juniarti, Shella Mida; Khotimah, Siti; Rahmawati, Rahmawati; Mukarlina, Mukarlina
Life Science Vol 13 No 1 (2024): May 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/lifesci.v13i1.74174

Abstract

The productivity of Siam citrus in West Kalimantan from year to year has begun to decline, one of the causes is a disease that attacks the plant. One of the diseases that often attack citrus plants is leaf cancer disease caused by the bacterium Xanthomonas sp. Phosphate solubilizing bacteria are one of the rhizosphere bacteria from peat soils that can act as biological control agents in plants. Therefore, this study aimed to determine phosphate solubilizing bacteria from peat soil as a control for leaf cancer of the Siam Pontianak citrus plant caused by Xanthomonas sp. This research was conducted from June 2022 to September 2022, at the Microbiology Laboratory, Department of Biology, Faculty of Mathematics and Natural Sciences, Tanjungpura University, Pontianak. This study used a completely randomized design (CRD) with each of the 5 treatment levels repeated 3 times to obtain 15 experimental units. Antagonist test in vitro using the dual culture method. The results showed that all phosphate solubilizing bacteria from peat soil Bacillus sp. (SGB1), Bacillus sp. (SGB 2), and Bacillus sp. (SGB 3) have antagonistic potential against Xanthomonas sp. (BP2).
Pertumbuhan Kultur Meristem Mahkota Nanas (Ananas comosus (L.) Merr) pada Media Murashige Skoog (Ms) dengan Penambahan Ekstrak Jagung (Zea Mays (L.) dan Naphthalene Acetic Acid (Naa) Desy, Desy; Rusmiyanto, Elvi; Mukarlina, Mukarlina
Produksi Tanaman Vol. 11 No. 5 (2023): Mei
Publisher : Jurusan Budidaya Pertanian Fakultas Pertanian Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.protan.2023.011.05.03

Abstract

Nanas (Ananas comosus (L.) Merr.) merupakan salah satu jenis buah-buahan holtikultura yang berpotensi untuk dibudidayakan dan memiliki nilai ekonomi baik di Kalimantan Barat. Perbanyakan tanaman nanas dapat dilakukan secara in vitro melalui kultur meristem mahkota nanas dengan menumbuhkan eksplan pada media Murashige Skoog dengan penambahan ekstrak biji jagung dan Naphthalene Acetic Acid (NAA). Tujuan penelitian adalah untuk mengetahui pengaruh ekstrak biji jagung dan NAA terhadap pertumbuhan kultur meristem mahkota nanas. Penelitian dilaksanakan bulan September 2019 hingga April 2020 di Laboratorium Kultur Jaringan Jurusan Biologi FMIPA Universitas Tanjungpura. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) dengan dua faktor. Faktor pertama ekstrak biji jagung konsentrasi 0% (J1), 10% (J2), dan 15% (J3) ; faktor kedua NAA konsentrasi  0M (N1), 5x10-8 M (N2), dan 10-7 M (N3) . Masing-masing perlakuan diulang 3 kali sehingga diperoleh 27 unit percobaan. Hasil penelitian menunjukkan bahwa kombinasi NAA dan ekstrak biji jagung berpengaruh nyata terhadap waktu muncul tunas (hari), jumlah tunas (tunas), jumlah daun (helai) dan tinggi planlet (cm). Perlakuan 10-7 M NAA+15% ekstrak biji jagung (N1J2) menghasilkan pertumbuhan terbaik dengan waktu muncul tunas 8,6 hari dan jumlah tunas 7 buah tunas.
Growth of Pontianak Siamese Shoot Culture (Citrus nobilis var. microcarpa) Supplemented with Tomato Extract and BAP (6-benzylaminopurine) Istiani, Duwi Rida; Mukarlina, Mukarlina; Ifadatin, Siti
Jurnal Biologi Tropis Vol. 25 No. 4a (2025): Special Issue
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i4a.9666

Abstract

Pontianak Siamese (Citrus nobilis var. microcarpa) is a superior agricultural commodity especially in Sambas Regency, West Borneo. One solution to assist in the supply of Pontianak Siamese seedlings is propagation with tissue culture. This research aims to determine the impact of supplementation of tomato extract and BAP on the growth of Pontianak Siamese shoot cultures. This research was conducted from February to May 2023, at Biology Laboratory, Department of Biology, Faculty of Mathematics and Natural Sciences, Tanjungpura University. The research design used a Completely Randomized factorial design with two factors. The first factor is the treatment of BAP with concentrations 0M; 10-7M; 10-6M; and 5.10-6 M, while the second factor was tomato extract with concentrations 0% 7.5%, 10%, and 12.5%. The research results show the treatment B3T0 (5.10-6 M BAP and 0% T) has the most leaves (7 strands), the longest root length (0.30 cm), and the most roots (1 root).