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All Journal HAYATI Journal of Biosciences Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Jurnal Fitopatologi Indonesia Jurnal Ilmu Pertanian Jurnal Natur Indonesia Jurnal Ilmu Pertanian KULTIVAR AGROEKOTEKNOLOGI JURNAL ILMU PERTANIAN Kultivasi jurnal Ilmu Pertanian (Agricultural Science) International Journal of Basic and Applied Science PERTANIAN TROPIK Makara Journal of Science

Luthfi Aziz Mahmud Siregar

Universitas Sumatera Utara

Author-ID : 310019

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Electrical & Electronics Engineering Medicine & Pharmacology Physics

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Pengaruh Zat Pengatur Tumbuh terhadap Induksi Akar (Rhizogenesis) pada Tanaman Bangun-Bangun (Plectranthus amboinicus (Lour.) Spreng) secara In Vitro Nella Angelina Simanjuntak; Luthfi Aziz Mahmud Siregar; Lollie Agustina P Putri
Jurnal Agroekoteknologi Vol 5, No 3 (2017)
Publisher : Universitas Sumatera Utara

Penelitian ini bertujuan untuk mengetahui pengaruh zat pengatur tumbuh terhadap induksi akar (rhizogenesis) pada P. amboinicus secara in vitro. Penelitian ini dilaksanakan di Laboratorium Kultur Jaringan UPT. Benih Induk Hortikultura Gedung Johor, Dinas Pertanian, Sumatera Utara, Indonesia. Penelitian ini dimulai pada bulan April 2016 sampai dengan Juli 2016. Rancangan yang digunakan adalah rancangan acak lengkap non faktorial dengan 7 perlakuan yaitu: MS + 1 mg/l NAA + 0,1 mg/l kinetin; MS + 2 mg/l NAA + 0,1 mg/l kinetin; MS + 3 mg/l NAA + 0,1 mg/l kinetin; MS + 1 mg/l 2,4 D + 0,1 mg/l kinetin; MS + 2 mg/l 2,4 D + 0,1 mg/l kinetin; MS + 3 mg/l 2,4 D + 0,1 mg/l kinetin; MS + 0,1 mg/l kinetin. Penelitian ini menggunakan 15 ulangan. Hasil penelitian menunjukkan bahwa perlakuan zat pengatur tumbuh memberikan pengaruh nyata terhadap berat segar akar dan jumlah akar tetapi belum memberikan pengaruh nyata terhadap persentase terbentuknya akar dan umur muncul akar. Medium MS + 3 mg/l NAA + 0,1 mg/l kinetin memberikan hasil terbaik pada persentase terbentuknya akar, berat segar akar, dan jumlah akar.

Eksplorasi dan Karakterisasi Morfologis Durian (Durio zibethinus Murr) di Kecamatan Tigalingga Kabupaten Dairi Sumatera Utara Nazriah pratiwi; Diana Sofia Hanafiah; Luthfi aziz mahmud siregar
Jurnal Agroekoteknologi Vol 6, No 2, April (2018)
Publisher : Universitas Sumatera Utara

Penelitian ini bertujuan untuk mengidentifikasi karakter morfologis Durian (Durio zibethinus Murr) di Kecamatan Tigalingga dan Pegagan Hilir Kabupaten Dairi Sumatera Utara.Penelitian ini dilakukan di Kecamatan Tigalingga dan Kecamatan Pegagan Hilir Kabupaten Dairi pada bulan Desember 2016 sampai dengan Januari 2017, data diidentifikasidengan metode survei deskriptif menggunakan panduan descriptors for durian(Bioversity Internasional)dengan teknik pengambilan sampel secara accidental sampling.Hasil penelitian menunjukkan bahwa di dua Kecamatan di Kabupaten Dairi terdapat 21 genotipe durian yang teridentifikasi. Hasil karakterisasi morfologis untuk bentuk tajuk (piramida, jorong, bulat, stengah membulat, lonjong dan tidak beraturan), permukaan batang (kasar), daun (empat persegi, bulat panjang dan bulat telur), buah (bulat ujung datar, bulat, bulat telur, lonjong, bulat panjang, dan ovoid), biji (lonjong jorong dan bulat). Kata kunci : karakter morfologi, durian, kabupaten Dairi

Selection to Stem Rot Disease Athelia rolfsii (Curzi)Resistant Level of SomeSoybean (Glycine max L. Merrill)Line and High Production on M5 Generation Mutia Rahmah; Diana Sofia Hanafiah; Luthfi Aziz Mahmud Siregar
Jurnal Agroekoteknologi Vol 6, No 4,Okt (2018)
Publisher : Universitas Sumatera Utara

This study aims to get individuals selected of some soybean Glycine max L. (Merrill) M5 generation with character resistant stem rot disease Athelia rolfsii (Curzi)and high production. This research was conducted in Plant Disease Laboratory and experimental field Faculty of Agriculture Universitas Sumatera Utara Medan, Indonesia. This research was conducted from December 2016 until July 2017. In this study using augmented design. The treatments were 15 mutant lines, the check variety were Anjasmoro, Agromulyo, and Kipas Putih varieties. The results showed that the appearance of agronomic characters observed in the inoculated medium of the fungus causes stem rot disease is lower than the optimum field without inoculation of fungus. Differences in the means values of the mutant line are in the larger stem diameter character of plant than with the inoculation of fungus. Broad sense heritability values were found in the number of pods per plant, number of seeds per plant, and seed weight per plant on the inoculated medium of the fungus and the optimum field. Selection performed on population M5resulted 7 individuals with high production character and 62 individuals with tolerance of stem rot disease character.

Identification of Morphological Characteristic of Dragon Fruit (Hylocereus sp.) in Sitinjo District of Dairi Regency North Sumatera Nina Unzila Angkat; Luthfi Azis Mahmud Siregar; Revandy Iskandar Damanik
Jurnal Agroekoteknologi Vol 6, No 4,Okt (2018)
Publisher : Universitas Sumatera Utara

This reserach aimed to identify the morphological chracteristics and phylogenetic relationship of Dragon Fruit (Hylocereus sp.) plants. The research was started from April 2017 until May 2017 at Sitinjo district of Dairi Regency North Sumatera with survey methode using dragon fruit descriptor of Hylocereus by International Union For The Protection Of New Varieties (UPOV). Sampling technique using purposive sampling. Exploration results was obtained 24 genotypes of Dragon Fruit plants based on identified fruit morphological characteristic. Based on clustering analyze the closest genetic relationship is on genotype G17 and G23 which has 2 differences of 7 characteristic with dissimilarity coeficient is 1,000 and the furthest genetic relationship is on genotype G18 and G26 with dissimilarity coeficien is 4,796 which has 5 differences of 7 characteristic.

Morphological Characteristics and Phylogenetic Relationship of Several Genotypes of Coconut (Cocos nucifera L.) in Silau Laut District Asahan Regency Risma Damayanti; Luthfi Aziz Mahmud Siregar; Diana Sofia Hanafiah
Jurnal Agroekoteknologi Vol 6, No 4,Okt (2018)
Publisher : Universitas Sumatera Utara

This research aimed to identify the morphological characteristics and phylogenetic relationship of several genotypes of coconut in Silau Laut district Asahan regency Sumatera Utara. The research was conducted from April to Mei 2017 by survey method based on coconut descriptor of International Plant Genetic Resources Institute (IPGRI) with sampling technique using accidental sampling. This result of research showed that in Silau Laut district there were 27 genotypes of coconut been identified. The result of morphologycal characteristics for crown shape (spherical, hemispherical, X-shaped ‘silhouette’), flower shape (normal and additional spathes or bracts), fruit shape (oblong, ovoid, angled, round), nut shape (pointed, ovoid, almost round, oblate). The closest phylogenetic relationship is G41 and G42 with coefficient dissimilarity 3,00 and farthest phylogenetic relationship is G40 and G45 with coefficient dissimilarity 12,53. The result of dendogam showed at scale 18 was formed 5 goups. Phylogenetic relationship of between genotypes of coconut in Silau Laut district Asahan regency still have a close level relationship.

Identifikasi Fenotipe Pisang Barangan (Musa acuminata Linn.) di Kabupaten Deli Sedang Sumatera Utara Beatrix Blandina; Luthfi Aziz Mahmud Siregar; Hot Setiado
Jurnal Agroekoteknologi Vol 7, No 1,Jan (2019)
Publisher : Universitas Sumatera Utara

Penelitian ini bertujuan untuk mengidentifikasi fenotipe tanaman pisang barangan (Musa acuminata Linn.) yang ada di Kabupaten Deli Serdang Sumatera Utara. Penelitian ini dilaksanakan di Kecamatan Sinembah Tanjung Muda Hilir Kabupaten Deli Serdang mulai bulan Maret sampai dengan Agustus 2017 menggunakan metode survei deskriptif dengan panduan descriptors for banana (International Plant Genetic Resources Institute) dengan teknik pengambilan sampel secara purposive sampling. Hasil penelitian ini menunjukkan bahwa hubungan kekerabatan terdekat ada pada sampel D1P1S1 dan D1P1S3 dengan nilai jarak terdekat senilai 0,000 dan hubungan kekerabatan terjauh pada sampel D1P3S3 dan D3P3S2 dengan nilai jarak terjauh senilai 5,000.

Chromosome status and yield characteristics of soybean (Glycine max L. (Merr)) in saline soil as affected by induced mutation Agus Pernando Simanjuntak; Diana Sofia Hanafiah; Luthfi Aziz Mahmud Siregar
Jurnal Ilmu Pertanian Vol 6, No 2 (2021): August
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.63621

To fulfill the demand of soybeans, the expansion of the planting area can be one of the choices through the conversion of marginal land by utilizing suboptimal land, such as saline soil. One of the plant breeding techniques to obtain tolerant plants to salinity is the use of chemical mutations, such as colchicine. The study aimed to reveal the effect of salinity on the characters of soybean plants (mutated with colchicine) and the effect of colchicine on the number of chromosomes and ploidy level. This study was conducted from January to March 2020 and carried out in the plastic house of Faculty of Agriculture, Universitas Sumatera Utara. The experiment was arranged in a Randomized Block Design with salinity levels (0 dS.m-1, 2 dS.m-1, 4 dS.m-1, 6 dS.m-1) as treatments and consisted of ten replications in each treatment. The result showed that the soybean plants were not successfully induced by colchicine at a concentration of 0.04 % with soaking duration of 10 hours, as indicated by the number of chromosomes and analysis of ploidy level. The soybeans that had been induced were planted in saline soil. There were significant effects observed on the productive branch, number of filled pods, and the weight of seeds per plant. Colchicine treatment did not successfully affect the number of chromosomes of soybeans but had an impact on the chromosome pattern. In addition, the salinity treatment of 4 dS.m-1 significantly affected the number of filled pods compared to the treatment of 6 dS.m-1.

The Effect of Vernalization on the Appearance of Local Amaryllis (Hippeastrum sp.) Plants in the Land of Karo and West Sumatera Ulfa Ridha Andini; Hot Setiado; Luthfi Aziz Mahmud Siregar
Jurnal Pertanian Tropik Vol. 6 No. 1 (2019): JURNAL PERTANIAN TROPIK
Publisher : Talenta Publisher

Amarilis is one of the flower of the park that is attractive and has high economic value. This study aims to determine the effect of vernalization on the appearance of local amaryllis plants in Tanah Karo and West Sumatra. This research was conducted at the Plant Breeding Basic Laboratory of the Faculty of Agriculture, University of North Sumatra, Medan, from February 2018 to July 2018. This research was carried out by storing tubers at room temperature (control) and storage of tubers at low temperatures (vernalization) at 10 oC for 6 weeks, and with differences in accession of plants namely G1 (Accession of West Sumatra Payakumbuh), G2 (Bukit Tinggi West Sumatra Accession), G3 (Padang Panjang West Sumatra Accession), G4 (Local Kabanjahe Accession Tanah Karo), G5 (Berastagi Local Accession Tanah Karo ), G6 (Tanah Karo Local Accession Accession). The results showed that vernalization gave a different appearance compared to the control treatment.

Respon Pertumbuhan Akar Beberapa Hasil Persilangan Populasi F1 Tanaman Jagung (Zea mays L.) terhadap Cekaman Besi (Fe) pada Media Kultur Hara Hanipah Tanjung; Khairunnisa Lubis; Luthfi Aziz Mahmud Siregar
Jurnal Pertanian Tropik Vol. 5 No. 1 (2018): JURNAL PERTANIAN TROPIK
Publisher : Talenta Publisher

The aims of the research were to know The Root Growth Response of Some crosses F1 Corn Populations (Zea mays L.) at Iron Stress (Fe) in Medium of Nutrient Culture. This research was conducted at the greenhouse Faculty of the Agriculture University of Sumatera Utara, Medan from March to April 2017. The research used Randomized Block Design (RBD) with two using two factors i.e : F1 population (NEI 9008 x CLA 46, CLA 84 x NEI 9008, CLA 106 x NEI 9008, CLA 16 x CLA 84, and CLA 84 x P1027) and iron stress treatment (0, 50 ppm, and 100 ppm). The results showed that the F1 population had a significant effect on root-canopy weight, root volume, and root canopy ratio. Iron stress treatment with different concentrations had a significant effect on root distribution parameters, root canopy ratio, root length, and the extension of root length. The interaction between F1 population and iron stress has a significant effect on root volume character. Iron treatment with a concentration of 100 ppm can still be tolerated by the F1 population of maize crops on nutrient culture. The CLA 16 x CLA 84 populations had a better adaptation to the iron stress treatment in nutrient culture media. The CLA 16 x CLA 84 had lower stress sensitivity index value and a smaller productivity gap on root dry weight.

PENGARUH KASEIN HIDROLISAT DAN INTENSITAS CAHAYA TERHADAP PRODUKSI BIOMASSA DAN ALKALOID CANTHINONE DI DALAM KULTUR SUSPENSI SEL PASAK BUMI (Eurycoma longifolia Jack) Siregar, Luthfi Aziz Mahmud; Keng, Chan Chan; Lim, Boey Peng
Makara Journal of Science Vol. 14, No. 1
Publisher : UI Scholars Hub

Show Abstract | Download Original | Original Source | Check in Google Scholar

Effects of Casein Hydrolisate and Light Intensity on Production of Biomass and Canthinone Alkaloid in Cell Suspension Cultures of Pasak Bumi (Eurycoma longifolia Jack). A study on the effect of several concentrations of casein hydrolysate and light intensity to produce biomass and canthinone alkaloid in cell suspension culture of Pasak Bumi (Eurycoma longifolia Jack) was conducted. The research was an experimental study with block random design non factorial. For study of casein hydrolysate was used 8 (eight) of concentration treatments, i.e. 0.00, 0.10, 0.25, 0.50, 0.75, 1.00, 2.00, dan 5.00% (w/v). Beside for study of different light intensity effect was used five of light intensity, i.e. 0, 190, 290, 585, and 1525 lux. The results showed that addition 0.1–2.0% (w/v) of casein hydrolysate into culture medium did not show the effect on production of cell biomass compare with without casein hydrolysate. Total of alkaloid produce increased two fold in the culture medium containing 0.1% casein hydrolysate. The medium with addition 5% casein hydrolysate significantly decrease of increased fresh weight, dry weight and total of alkaloid compare with medium without or additions of casein hydrolysate at 0.1–2.0% concentration. Besides, the modifications on light intensity (0–1525 lux) did not effect the production of cell biomass in culture medium, but the place of E. longifolia Jack cell suspension culture at light of 1525 lux was found have to stimulate increased the total of 9- methoxycanthin-6-one in cells.

Co-Authors Abd. Rasyid Syamsuri Abdul Rauf Agus Pernando Simanjuntak Asima napitupulu Asma Ul Husna Ayu Oshin Yap Sinaga Beatrix Blandina BOEY PENG LIM Boey Peng-Lim CHAN LAI KENG Chan Lai-Keng Chandri Lidya Putri Nasution Diana Sofia Hanafiah DWI NINGSIH SUSILOWATI Dyanne Gisella P. Tambak Elseria Siburian Emmy Harso Kardhinata Emmy Rosita Ermando, Relly Erni Royani Harahap Eva Sartini Bayu Eva Sartini Bayu Firdani, Citra Fristy Rebecca Hasianta Sitohang Hanipah Tanjung Hapsoh Hasmawi Hasyim2 Hasmawi Hasyim2 Heri Hidayat Hilda Mei Yeni Harahap Hot Setiado Hot Setiado Hot Setiado I.M. Revandi Damanik Imam, muhammad Ira Tiarma Sari Damanik Jonatan Ginting Julita Julita Keng, Chan Chan Khairunnisa Lubis Khairunnisa Lubis Lambok Turnip Larosa Harahap Lili Herawati Siregar Linda Tri Wira Astuti Lisa Lisa Mawarni Lisnawita Lita Adelia Lollie A. P. Putri Agustina P Putri Lollie Agustina P Putri Lollie Agustina P. Putri Lollie Agustina P. Putri Lollie Agustina P. Putri Lollie Agustina P. Putri Mahyuddin Dalimunte Marpaung, Agustina Erlinda Milani, Ayu Mona Faronika1 Mona Faronika1 Mutia Rahmah Nazriah pratiwi Nella Angelina Simanjuntak Nina Unzila Angkat Nini Rahmawati nuraminah nasution Permata Sari Harahap Purba, Hans Samuel Putri Hasanah Jumroh Retno Diah Setiowati Revandy Iskandar Muda Damanik Riski Aulia Risma Damayanti Rosmayati Rosmayati Rosmayati Rosmayati Rosmayati Rosmayati Rozaliana Rozaliana Sihotang, Tambun Siti Aminah Sopa Putri Tanjung Tengku Sabrina Triningsih Triningsih Ulfa Ridha Andini Utri Patma1 Utri Patma1 Yoppi Operasisco Gabesius Yusuf Husni Yusuf Husni

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