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Kota medan,
Sumatera utara
INDONESIA
AGROEKOTEKNOLOGI
Published by Universitas Sumatera Utara
ISSN : 23376597     EISSN : -     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal AGROEKOTEKNOLOGI merupakan jurnal ilmiah yang diterbitkan secara online berisikan hasil-hasil penelitian tentang hama dan penyakit tumbuhan, agronomi, pemuliaan tanaman dan ilmu tanah
Arjuna Subject : -
Articles 943 Documents
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Indeks kerapatan mutlak , kerapatan relatif, frekuensi mutlak dan frekuensi relatif serangga pada tanaman Padi (Oryza sativa L.) fase vegetatif dan fase generatif di Percut, Sumatera Utara Tika Ihtisari; Ameilia Zuliyanti Siregar; Mukhtar Iskandar Pinem
Jurnal Agroekoteknologi Vol 7, No 2,April (2019)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (576.843 KB) | DOI: 10.32734/jaet.v7i2,April.23453

Abstract

Produktivitas tanaman padi dipengaruhi oleh Organisme Pengganggu Tanaman.Penelitian ini bertujuan untuk mengetahui indeks kerapatan mutlak,kerapatan relatif,frekuensi mutlak dan frekuensi relatif serangga pada tanaman padi (Oryza sativa L.) fase vegetatif dan fase generatif di Percut,Sumatera Utara.Penelitian menggunakan 3 alat,yaitu jaring serangga,perangkap kuning dan perangkap tanah sebanyak 6 kali pada fase vegetatif dan generatif.Analisis data dilakukan menggunakan Rancangan Acak Kelompok Non Faktorial.Hasil penelitian menunjukkan pada fase vegetatif nilai Kerapatan Mutlak tertinggi terdapat pada genus : Agriocnemis (284),yang memiliki Kerapatan Relatif : 23,39 %,Frekuensi Mutlak : 6 dan Frekuensi Relatif: 4,20%.Sedangkan nilai Kerapatan Mutlak terendah terdapat pada genus: Discladispa,Riptortus,Chilo,Nymphula,Musca, Thomisius,dan Tachnidae (1),yang memiliki Kerapatan Relatif:  0,08%,Frekuensi Mutlak : 1 dan Frekuensi Relatif 0,70%.  Pada fase generatif nilai kerapatan mutlak tertinggi terdapat pada genus : Leptocorisa (263),yang memiliki Kerapatan Relatif : 19,69 %,Frekuensi Mutlak : 6 dan Frekuensi Relatif: 4,08%.Sedangkan nilai Kerapatan Mutlak terendah terdapat pada genus: Leptispa,Apis, Trichoma,Eucyrtus,dan Conocephalus (1),yang memiliki  Kerapatan Relatif : 0,07%,Frekuensi Mutlak : 1 dan Frekuensi Relatif: 0,68%. Kata Kunci :Serangga,fase vegetatif,fase generatif,Percut
Sugar cane Bud set Seed Growth at Various of Planting Material Ages and Storag Muhammad Fauzan Alwani; Meiriani Meiriani; Lisa Mawarni
Jurnal Agroekoteknologi Vol 7, No 1,Jan (2019)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (365.024 KB) | DOI: 10.32734/jaet.v7i1,Jan.23997

Abstract

In order to get a good seed, the source of planting material usually uses 6 - 8 months. Storage of  sugarcane bud set aims to maintain the viability of the seeds as long as the bud set is not ready for planting. This research was conducted on the land of the Agriculture Faculty, University of Sumatera Utara, Medan in April - July 2017, using factorial randomized block design with two factors, i.e. age of planting material (6, 7, and 8 months) and storage periods (24, 48, 72 hours). The results showed that 7 months planting material gave the best plant lenght and seeds diameter. Using 7 months planting material with 72 hours storage periods gave best shoot growth percentage.
Visualisasi Hasil Amplifikasi Dna Origin Kelapa Sawit (Elaeis Guineensis Jacq.) Plasma Nutfah PT. Socfindo Berdasarkan Tiga Primer SSR Rini Anggreini; Eva Sartini Bayu; Hot Setiado
Jurnal Agroekoteknologi Vol 7, No 1,Jan (2019)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jaet.v7i1,Jan.23465

Abstract

The oil palm plant is a one-piece plant included in Palmae's family. Molecular marking applications can be used to improve efficiency in analyzing genetic relationship, gene mapping, and marker-assisted selection (MAS) in oil palm plants. This study aims to determine the visualization of the amplification of DNA of Origin of Oil Palm (Elaeis guineensis Jacq.) Germplasm PT. Socfindo Based on Three SSR (Simple Sequence Repeats) Primers. The material analyzed is the 14 origin of oil palm originating from the germplasm of PT. Socfindo. The results showed the size of DNA bands that varied from 138 bp to 308 bp. The lowest band size was found on the FR-0782 primers, namely 138-211 bp and the polymorphic percentage was 60%. Key words: oil palm, molecular markers, SSR markers  

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