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Jurnal Bios Logos
Published by Universitas Sam Ratulangi
ISSN : 20889569     EISSN : 26563282     DOI : https://doi.org/10.35799/jbl.11.2.2020.28153
Core Subject : Health, Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology Medicine & Pharmacology
JURNAL BIOS LOGOS is the journal published by Department of Biology, Faculty of Mathematics and Natural Sciences, Sam Ratulangi University. The aims of the journal are to publish original research papers and article review in biology science i.e. botany, zoology, molecular biology, microbiology, ecology, diversity and conservation, taxonomy and biogeography. BIOS LOGOS is published two times per year (February and August)
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 5 Documents
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Search results for , issue "Vol 4, No 1 (2014): JURNAL BIOSLOGOS" : 5 Documents clear
Analisis Pertumbuhan Tanaman Kentang (Solanum tuberosum L) pada Tanah yang Terakumulasi Logam Berat Cadmium (Cd) (Growth Analysis of Potato (Solanum tuberosum L.) in Accumulates Of Heavy Metal Cadmium(Cd) Soil) Kusdianti, Kusdianti; Solihat, Rini; Hafsah, Hafsah; Trisnawati, Eva
JURNAL BIOS LOGOS Vol 4, No 1 (2014): JURNAL BIOSLOGOS
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/jbl.4.1.2014.4839

Abstract

Abstrak Pupuk dan pestisida kimiawi merupakan hal penting pada sistem budidaya tetapi jika  penggunaannya berlebih dapat meningkatkan kandungan logam berat kadmium  (Cd) dalam tanah. Penelitian ini bertujuan menganalisis pertumbuhan tanaman kentang (Solanum  tuberosum L.) pada tanah yang terakumulasi logam berat kadmium. Sampel tanaman berasal dari lokasi pertanian kentang Pangalengan Jawa Barat. Parameter yang diukur yaitu kandungan klorofil, biomassa, kandungan logam kadmium dalam tanah dan umbi kentang. Kandungan kadmium dalam sampel tanah dan umbi kentang diukur dengan menggunakan Atomic Absorption Spectrophotometry (AAS). Hasil penelitian menunjukkan kandungan kadmiumpada lahan pertanian kentang telah melebihi ambang batas. Kadmium terakumulasi dalam umbi kentang, tetapi masih berada di bawah ambang batas. Klorofil, berat kering, dan berat basah mengalami kenaikan setiap minggunya (4-10 Minggu Setelah Tanam). Adanya logam kadmium  yang diserap oleh tanaman kentang dapat menghambat pembentukan  klorofil sehingga akan mempengaruhi biomassa tanaman. Kata kunci: klorofil, biomassa, kentang, kadmium Abstract Chemical fertilizers and pesticides are important in the culture system but if the excessive usage may increase the content of heavy metals cadmium ( Cd ) in the soil. This study aims to analyze the growth of the potato ( Solanum tuberosum L.) on the ground that accumulate heavy metals cadmium. Plant samples derived from potato farming locations Pangalengan West Java.The parameters are chlorophyll content, biomass, cadmium  content in soil and potato tubers. The content of cadmium in soil and potato tuber samples were measured using Atomic Absorption Spectrophotometry (AAS). The results showed cadmium content in potato farms has exceeded the threshold. Cadmium accumulates in potato tubers, but still below the threshold. Chlorophyll, dry and fresh weight increase every week (4-10 Weeks After Planting). The presence of the metal cadmium is absorbed by the potato can inhibit the formation of chlorophyll that will affect plant biomass . Keywords: chlorophyll, biomass, potatoes, cadmium
Diversitas Laba-laba (Predator Generalis) pada Tanaman Kacang Merah (Vigna angularis) di Kecamatan Tompaso, Kabupaten Minahasa (The Diversity of Spider (Predator Generalis) in Kidney Bean (Vigna angularis) Plant Cultivated in Tompaso District, Minahasa R Maramis, Redsway TD
JURNAL BIOS LOGOS Vol 4, No 1 (2014): JURNAL BIOSLOGOS
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/jbl.4.1.2014.4840

Abstract

Abstrak Laba-laba (Araneae) adalah salah satu agen biologis yang sangat ampuh dalam pengendalian hama serangga pada ekosistem. Komposisi laba-laba yang dikumpulkan di kebun tanaman kacang merah terdapat 237 individu yang termasuk 19 genus, dan 10 famili. Hasil analisis indeks keanekaragaman laba-laba pada tanaman kedelai menunjukkan pada fase awal pertumbuhan tanaman atau pada pengamatan pertama adalah yang terendah (H'= 1,97), sedangkan tertinggi pada pengamatan kedua (H' = 2,97) , kemudian diikuti oleh pengamatan ketiga atau dalam fase pembuahan (H '= 2,68).   Abstract Spiders (Araneae) are one of the biological agents that are very potential for insect pest control in the ecosystem. The number of spiders that are collected in kidney bean plant field is 237 and consisted of 19 genus and 10 families. The result of spider diversity index analysis in kidney bean plant showed on the first step of plants growth or on the first observation are the lowest        (H’ = 1,97), whereas the highest on the second observation (H’ = 2,97), then followed by the third observation or in fertilization phase (H’ = 2,68). Keywords : spiders, diversity, kidney bean
Aksi Ethyl Methane Sulphonate terhadap Munculnya Bibit dan Pertumbuhan Cabai Rawit(Capsicum frutescens L.) (Ethyl Methane Sulphonate Action on Seed Emergence and Growth of (Capsicum frutecens L.)) Rustini, Ni Kadek Dewi; Pharmawati, Made
JURNAL BIOS LOGOS Vol 4, No 1 (2014): JURNAL BIOSLOGOS
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/jbl.4.1.2014.4836

Abstract

Abstrak Penelitian ini bertujuan mengamati pengaruh lama perendaman biji dengan 1% EMS terhadap persentase munculnya bibit dan karakter pertumbuhan tanaman cabai rawit pada umur 4 minggu setelah tanam (MST). Benih cabai rawit direndam dalam air selama 6 jam, selanjutnya direndam 1% EMS dalam buffer fosfat pH 7, selama 6 jam, 9 jam dan 12 jam. Tiap biji disemai dalam bumbungan kertas. Munculnya bibit diamati setiap hari. Setelah berumur 3 minggu, bibit dipindahkan ke bedengan. Hasil menunjukkan perlakuan 1% EMS memperlambat munculnya bibit. Pada 10 hari setelah semai (HSS) munculnya bibit pada perlakuan dapat mencapai 100%. Perlakuan 1% EMS berpengaruh nyata terhadap tinggi tanaman dan jumlah daun, sedangkan panjang, dan lebar daun dengan perendaman 6 jam tidak berbeda dengan kontrol, namun berbeda dengan perendaman 9 jam dan 12 jam. Kata kunci : EMS, bibit, pertumbuhan, Capsicum frustescens L.   Abstract This research aimed to evaluate the influence of different exposure durations of 1% EMS on seedling emergence and growth characters of C, fustescent at 4 week after planting (WAT). Seeds were soaked in water for 6 hours, then soaked in 1% EMS in phosphate buffer pH 7, for 6 hours, 9 hours and 12 hours. Each seed was then sowed in a single paper tube. Seedling emergence was observed every day. At 3 weeks after sowing, seedlings were transferred to field. Results showed that soaking seeds in 1% EMS inhibited seedling emergence. At 10 days after sowing, the percentages of seedling emergence at control and treated seed were 100%. Treatments of 1% EMS have a significant effect on plant height, and the number of leaf, while length, and width of leaf with 6 hour exposure were not different with control, but differ from exposure of 9 hours and 12 hours. Keywords: EMS, seed emergence, growth, Capsicum frutescens L.
Perkembangan Kultur Daun Aglaonema sp. dengan Perlakuan Kombinasi Zat Pengatur Tumbuh NAA dan 2,4-D dengan BAP (The Leaf Culture Development of Aglaonema sp. Treated by Combination of NAA, 2,4-D and BAP as Growth Regulators) Wahyuni, Dwi Kusuma; Prasetyo, Dedy; Hariyanto, Sucipto
JURNAL BIOS LOGOS Vol 4, No 1 (2014): JURNAL BIOSLOGOS
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/jbl.4.1.2014.4837

Abstract

Abstrak Tujuan dari penelitian ini adalah menentukan pengaruh kombinasi NAA dan 2,4-D dengan BAP terhadap perkembangan kultur daun dan konsentrasi yang sesuai untuk induksi kalus tiga kultivar Aglaonema sp. Kultivar-kultivar yang digunakan adalah Dynamic Ruby, Snow White, dan Siam Aurora. Eksplan daun dikulturkan pada medium MS padat dengan perlakuan kombinasi NAA dan 2,4-D dengan BAP. Hasil pengamatan minggu kedelapan menunjukkan ada pengaruh perlakuan zat pengatur tumbuh terhadap perubahan bentuk eksplan daun. Eksplan daun melengkung, bergelombang, membengkak, warna eksplan memucat dan membentuk kalus, tetapi hanya Aglaonema sp. cv. Dynamic Ruby yang mampu membentuk kalus. Kombinasi zat pengatur tumbuh 0,1 ppm 2,4-D and 1 ppm BAP adalah kombinasi yang sesuai untuk induksi kalus untuk Aglaonema sp. cv. Dynamic Ruby. Kata Kunci: Aglaonema, NAA, 2,4-D, BAP, kalus   Abstract   The objective of this study were to determine the effect of combination of NAA and 2,4-D with BAP toward leaf culture development and to know the best concentration of growth regulator substance to induce callus on leaf explant of three Aglaonema cultivars. The cultivars were Dynamic Ruby, Snow White, and Siam Aurora. Leaf explants were cultured on solid MS medium with addition of various concentration combination of NAA and 2,4-D with BAP. Result of eight week observation gave significantly effect to changes shape leaf. Leaf blade was curved or rolled up, swelled, leaf color became pale strands, and formed callus, but the only cultivar which formed callus was Aglaonema sp. cv. Dynamic Ruby. The conclusion of this study was combination of growth regulator substance 0,1 ppm 2,4-D and 1 ppm BAP are the appropriate combination on callus inducing for Aglaonema sp. cv. Dynamic Ruby. Keywords: Aglaonema, NAA, 2,4-D, BAP, callus
Hubungan Kekerabatan Kultivar Talas (Colocasia esculenta) Berdasarkan Karakter Morfologi Organ Vegetatif (The Phenetic Relationship among Taro Cultivar (Colocasia esculenta) Based on Vegetative Morphological Characters) Hafsah, Hafsah; Hidayat, Topik; Kusdianti, Kusdianti
JURNAL BIOS LOGOS Vol 4, No 1 (2014): JURNAL BIOSLOGOS
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/jbl.4.1.2014.4838

Abstract

Abstrak   Telah dilakukan penelitian mengenai hubungan kekerabatan pada delapan kultivar talas (Colocasia esculenta) berdasarkan karakter morfologi organ vegetatif. Kultivar-kultivar tersebut yakni talas kaliurang, burkok, bentul, bogor, sutra, kudo, lampung dan semir. Total karakter yang diamati berjumlah 35 karakter. Karakter-karakter tersebut kemudian dibuat skoring. Hasil skoring dianalisis dengan metode UPGMA (Unwight Pair Group Method with Arithmetic Average) menggunakan program komputer PAUP versi 4.0b10 sehingga terbentuk fenogram. Hasil penelitian menunjukkan variasi morfologi organ vegetatif yang cukup tinggi. Dari seluruh karakter, hanya lima karakter yang tidak menunjukkan adanya perbedaan. Karakter tersebut yaitu bentuk daun dan ujung daun, rasio panjang terhadap lebar daun, pola tepi pelepah dan posisi dominan bentuk helai daun tua. Dari fenogram diketahui bahwa seluruh kultivar yang diamati membentuk dua kelompok utama. Kelompok pertama terdiri dari kaliurang, burkok, bentul, bogor, lampung dan sutra, yang membentuk tiga subkelompok. Kelompok kedua terdiri dari kudo dan semir. Hasil analisis fenetik menunjukkan kultivar bogor dan lampung merupakan dua kultivar yang sangat dekat hubungan kekerabatannya dengan nilai kesamaan sebesar 80%. Kata kunci : Colocasia esculenta, fenetik, kultivar, organ vegetatif Abstract This research was conducted to find out relationship on eight cultivars of taro (Colocasia esculanta) based on vegetative morphological characters. They were kaliurang, burkok, bentul, bogor, sutra, kudo, lampung and semir. Total characters observed were 35 characters and the scoring  was also performed. In order to form a phenogram, the scoring then were analyzed using computer software PAUP version 4.0b10, the UPGMA method (Unwight Pair Group Method with Arithmetic Average). Results showed that morphological variation of vegetative characters are quite high. Of all the characters, only five characters that indicated any significant differences. These characters were leaves shape, leaves tip shape, length-width leaves ratio, midrib leaves, and dominant position of the old leaves. From the phenogram, it was known that all cultivars observed were form into two main groups. The first group consists of kaliurang, burkok, bentul, bogor, lampung and sutra, which formed three subgroups. The second group consists of kudo and semir. The results of the phenetic analysis showed the cultivar bogor and lampung are two cultivars that are very close relationship ties with the similarity value of 80%. Keywords : Colocasia esculenta , phenetic, cultivars, vegetative

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