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Respon Pertumbuhan Kelapa Sawit (Elaeis Guineensis Jacq.) Varietas Dyxp Dumpy pada Kondisi Stres Air di Pembibitan Awal Wagino, Wagino; Tarigan, Sri Murti; Febrianto, Eka Bobby
Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian Vol 3, No 1 (2018): Jurnal Agrotekma Desember
Publisher : Universitas Medan Area

Global climate exchange especially rainfallspurs the growth of oil palm adapt to environmental conditions, so the development of oil palm plantations requires seeds that are able to adapt well in drought conditions.This study aims to determine whether water stress affects the growth of oil palm seedlings and sees the response of the level of resistance of oil palm seeds to drought stress.This research was carried out in the greenhouse garden experiment Medan STIPAP was conducted from January to June 2018. This study used Non-factorial Randomized Block Design (RBD), which consisted of 3 levels, 3 samples and 3 replications. Parameters to be observed were plant height, stem base diameter, leaf number, root wet weight, root dry weight, plant wet weight, plant dry weight, root volume, root length, stomatal density and number of stomata.The results showed that the difference in giving A1 water (100%) was significantly different from A2 (60%) and A3 (20%) on the parameters of oil palm seedling growth especially for the parameters of plant height, root wet weight, root dry weight, plant wet weight, plant dry weight, root volume, and root length while the base diameter of the stem, number of leaves, stomatal density and number of stomata give no significant effect. Drought stress effected to reduce the growth of stem diameter.

Respon Pertumbuhan Kelapa Sawit (Elaeis Guineensis Jacq.) Varietas Dyxp Dumpy pada Kondisi Stres Air di Pembibitan Awal Wagino, Wagino; Tarigan, Sri Murti; Febrianto, Eka Bobby
Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian Vol 3, No 1 (2018): Jurnal Agrotekma Desember
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/agr.v3i1.1934

Global climate exchange especially rainfallspurs the growth of oil palm adapt to environmental conditions, so the development of oil palm plantations requires seeds that are able to adapt well in drought conditions.This study aims to determine whether water stress affects the growth of oil palm seedlings and sees the response of the level of resistance of oil palm seeds to drought stress.This research was carried out in the greenhouse garden experiment Medan STIPAP was conducted from January to June 2018. This study used Non-factorial Randomized Block Design (RBD), which consisted of 3 levels, 3 samples and 3 replications. Parameters to be observed were plant height, stem base diameter, leaf number, root wet weight, root dry weight, plant wet weight, plant dry weight, root volume, root length, stomatal density and number of stomata.The results showed that the difference in giving A1 water (100%) was significantly different from A2 (60%) and A3 (20%) on the parameters of oil palm seedling growth especially for the parameters of plant height, root wet weight, root dry weight, plant wet weight, plant dry weight, root volume, and root length while the base diameter of the stem, number of leaves, stomatal density and number of stomata give no significant effect. Drought stress effected to reduce the growth of stem diameter.

Keragaan dan Keragaman Genetik Karakter Agronomi Galur Mutan Putatif Gandum Generasi M5 Eka Bobby Febrianto; Yudiwanti Wahyu; Desta Wirnas
Indonesian Journal of Agronomy Vol. 43 No. 1 (2015): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

The cultivation of wheat in Indonesia especially at medium-low altitude faces problems such as high temperatures whicheffect negativelyon the yield. The aims of this research was to obtain informations on performance, genetic variability and heritability of agronomic characters of wheat putative mutant lines on M5 generation. Genotypes evaluated in the study consisted of 98 putative mutant lines of M5 generation and six varieties as checks, namely Dewata, Selayar, Oasis, Rabe, Kasifbey, and Basribey. The research was conducted at Research Station of IOCRI (Indonesian Ornamental Crops Research Institute), Cipanas. Genotypes were arranged in an augmented, randomized block design. Result of the experiment showed that high heritability estimates were observed for plant height (83.03%), tiller number (61.75%), days to flowering (85.41%), days to maturity (67.45%), spike length (70.25%), spikelet number (65.08%), unfilled grain number (71.49%), seed number per spike (75.16%), seed weight per spike (81.69%), and seed weight per plant (74.21%). The estimated genotypic coefficient of variation (GCV) were high for unfilled grain number(26.35%) and seed weight per plant (18.35%). Based on seed weight per plant, 30 best putative mutant lines were selected.Keywords: Augmented design, heritability, Triticum aestivum

Pemanfaatan Tandan Kosong Kelapa Sawit Sebagai Media Tanam Pembibitan Batang Bawah Karet dengan Metode Root Trainer Atminingsih Atminingsih; Junaidi Junaidi; Mardiana Wahyuni; Eka Bobby Febrianto
Jurnal Agro Industri Perkebunan Volume 8 No. 2, Oktober 2020
Publisher : Politeknik Negeri Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jaip.v8i2.1620

Root trainer technology can be an alternative for rubber plant nursery that have ease in transportation and distribution. Organic materials which are lightweight, porous, and contain nutrients are considered suitable for root trainer growing media. This research was carried out at Sungei Putih Research Center Greenhouse, Deli Serdang from January - May 2019. The research was arranged based on a Randomized Block Design (RBD) with 4 media combination treatments namely: top soil (P0), empty bunches and manure (P1), empty bunches and rice husks (P2), and empty bunches and solid decanters (P3). The results showed that the planting media did not have a significant effect on plant growth including stem diameter, plant height, and number of leaves, as well as the percentage of successful grafting. The treatment of oil palm empty fruit bunches and solid decanter gave better growth than other organic materials. The availability of empty bunches and solid decanter in North Sumatra is relatively abundant so that it can support rubber nurseries throughout the year.

Pemetaan dan Evaluasi Kesesuaian Curah Hujan untuk Tanaman Kelapa Sawit di Kecamatan Bintang Bayu Kabupaten Serdang Bedagai Provinsi Sumatera Utara Sakiah Sakiah; Eka Bobby Febrianto; Ayi Sudrajat; Albert Kristian Siregar
Jurnal Agro Industri Perkebunan Volume 9 Nomor 1 Tahun 2021
Publisher : Politeknik Negeri Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jaip.v9i1.1706

Climate is one of the factors that influence the growth, and production of palm oil, one of the most important climate elements is rain. Rain is the main source of water in meeting the needs of palm oil trees. This research aimed to map the climate type of Bintang Bayu region and to determine the trend of rainfall in 10 years (2010-2019) in Bintang Bayu Sub-district, Serdang Bedagai District, Sumatera Utara Province. This research used Geographical Information Systems (GIS) and descriptive-analytical methods. Rainfall data derived from satellite imagery (Data Chips-2.0, UCSB) obtained from the Meteorology and Geophysics Agency (BMKG) Stasiun Klimatologi region of Deli Serdang which was used as the basis for determining dry and wet months based on Schmidt-Ferguson. Evaluation of rainfall suitability was carried out by comparing the annual rainfall observation data with the Palm Oil Land Suitability Criteria based on the Indonesian Center for Agricultural Land Resources Research and Development. The results showed that Bintang Bayu Sub-district had climate type A (tropical rain forest), in which, in the area with climate type A was suitable for palm oil plants. Based on the distribution of annual rainfall, there were two distributions of rain, that were 2,500-3,000 mm.year-1 and 3,000-3,500 mm.year-1, there were no areas with an annual rain distribution of 2,000-2,500 mm.year-1, thus the Bintang Bayu region is included in the S2 class. In ten years, there was an increase in rainfall in January, May, July, and October while in other months there was a decrease in rainfall.

KERAGAAN PERTUMBUHAN BIBIT KELAPA VARIETAS DxP LANGKAT PADA STRES KEKERINGAN DI PEMBIBITAN UTAMA Wagino Wagino; Sri Murti Tarigan; Eka Bobby Febrianto
Jurnal Agro Estate Vol 2 No 2 (2018): Desember 2018
Publisher : Institut Teknologi Sawit Indonesia

This research was conducted on September 2017 – March 2018, in the greenhouse and laboratory of STIPAP Medan. This study used a factorial randomized block design with three repetitions, with total sample was 27 samples. Parameters observed were plant height, stem base diameter, leaf number, leaf area, root number, root length, root dry weight, shoot dry weight, root volume and number of stomata. The data obtained were analyzed statistically by analysis of variance (ANOVA) with Duncan's advanced test of 5%. The results showed that the di erence in the provision of water in the Main Nursery nursery a ected to the growth of oil palm seedlings significantly a ected plant height, canopy dry weight, leaf chlorophyll and root volume except stem diameter, leaf number, leaf area, number of roots, root length, weight dry root and number of stomata. Oil palm is a plant that has shallow roots (root fibers), so it is easy to experience drought stress. Water availability is one of the main limiting factors for the growth and production of oil palm plants. In the vegetative phase lack of water availability can cause damage to plant tissue, while in the generative phase can reduce the production of oil palm plants.

ANALISA JUMLAH KLOROFIL DAUN TERHADAP PRODUKSI BUAH KELAPA SAWIT (Elaeis guineensis Jacq.) PADA DATARAN TINGGI DI KEBUN BAH BIRUNG ULU PTPN IV SUMATERA UTARA Aulia Juanda Djs; Eka Bobby Febrianto; Binsar Mangatur Tua Sinambela
Jurnal Agro Estate Vol 4 No 1 (2020): Juni 2020
Publisher : Institut Teknologi Sawit Indonesia

The height of one of the external factors that affect production. Chlorophyll is one of the factors that can affect palm oil production. There are several other factors that affect the productivity of oil palm plants, namely climate, territorial shape, soil conditions, planting material, and cultivation techniques. Altitude (altitude) is one of the outside factors that affect production. Differences in altitude cause differences in productivity so that production data need to be analyzed and compared. Height differences cause differences in productivity so production data need to be analyzed and compared. This research was conducted in the Bah Birung Ulu PTPN IV in April-June 2018. This study aims to determine the effect of altitude in the highlands area the effect of the amount of leaf chlorophyll on the production of oil palm fruit (Elaeis guineensis Jacq.). The method used is descriptive analytic method by processing secondary data (LM 76) and take leaf samples and measure chlorophyll content using chlorophyll meters. The results showed that in the highlands (Kebuna Bah Birung Ulu) had the highest production in 2006, amounting to 22,976 Ton / ha / year. The highest amount of chlorophyll of palm oil was found in the 2005 planting year, which was 80.5 CCI. The largest production of oil palm is in the 2006 planting year of 22,976 Ton / ha / year with 3,148 mm / year of rainfall.

UJI RESISTENSI KLON-KLON INTRODUKSI TERHADAP PENYAKIT GUGUR DAUN Pestalotiopsis sp. DI LABORATORIUM Sayurandi Sayurandi; Didi Kusnedy Kusnedy; Eka Bobby Febrianto; Cici Indriani Dalimunthe
Jurnal Agro Estate Vol 5 No 2 (2021): Desember 2021
Publisher : Institut Teknologi Sawit Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47199/jae.v5i2.211

The rubber plant (Hevea brasiliensis) comes from Brazil. The first rubber tree grew only in South America. Rubber plantations in Indonesia were introduced in 1864, since Hofland established a rubber plantation company in Tanah Panunukan and Ciasem, West Java. Attacks caused by Pestalotiopsis sp. showed brown spots on rubber leaves and a clear boundary between the spots and the healthy leaves. Infected leaves fall prematurely. Generally, those that are heavily attacked are rubber plants that have produced and are not maintained. The aim of the study was to determine the resistance level of introduced clones (PB 217, PB 260, PB 330, PB 340, RRIC 100, IRR 220 and GT 1) to leaf fall disease, namely Pestalotiopsis sp. The research was conducted at the Plant Protection Laboratory of the Sungai Putih Research Institute, using a non-factorial Completely Randomized Design (CRD). The observation result showed that clones PB 217 and GT 1 had the highest attack intensity after 8 days of inoculation namely 89.96% and 89.96%. The lowest attack intensity was found on clone IRR 220 namely 81.64%.

ANALISA PERTUMBUHAN Mucuna bracteata ASAL BIJI DENGAN BEBERAPA JENIS MEDIA TANAM Sri Murti Tarigan; Eka Bobby Febrianto; Prayogi Sunanda
Jurnal AGROHITA: Jurnal Agroteknologi Fakultas Pertanian Universitas Muhammadiyah Tapanuli Selatan Vol 5, No 1 (2020): Jurnal Agrohita
Publisher : Fakultas Pertanian Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jap.v5i1.1727

Mucuna bracteata merupakan tanaman penutup tanah yang banyak dipergunakan oleh perkebunan kelapa sawit dan karet. Keunggulan Mucuna bracteata adalah pertumbuhannya cepat. Berdasarkan hal ini maka dilakukan penelitian analisa pertumbuhan Mucuna bracteata asal biji dengan beberapa jenis media tanam. Penelitian dilaksanakan di areal kebun praktek Sekolah Tinggi Ilmu Pertanian Agrobisnis Perkebunan (STIPAP) Medan. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) non faktorial dengan perlakuan Jenis Media Tanaman yang terdiri dari 5 taraf dan 4 ulangan. Hasil penelitian menunjukkan bahwa perlakuan media tanam M1 (tanah top soil dicampur solid) merupakan media terbaik untuk parameter panjang sulur dengan hasil 148,75 cm, pertambahan jumlah daun dengan hasil 12 daun trifoliat, jumlah ruas dengan hasil 12 ruas dan panjang akar dengan hasil 37,11 cm.

RESPON DAN KERAGAMAN GENETIK GALUR PUTATIF MUTAN M6 GANDUM (Triticum aestivum L.) DI DUA AGROEKOSISTEM Eka Bobby Febrianto
Bernas : Jurnal Penelitian Pertanian Vol 12, No 3 (2016): Bernas Oktober 2016
Publisher : Bernas : Jurnal Penelitian Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (238.49 KB)

Penelitian ini bertujuan untuk mendapatkan genotipe gandum yang mampu beradaptasi dengan baik pada elevasi menengah dan mendapatkan informasi nilai keragaman genetik dari populasi mutan M6 di dua ekosistem yang berbeda. Penelitian dilakukan pada bulan Januari hingga April 2013 di dua lokasi dengan elvasi yang berbeda yaitu kebun percobaan Balai Penelitian Tanaman Hias, Cipanas dan Cisarua. Materi genetik yang digunakan pada penelitian ini adalah benih-benih generasi M6 yang terdiri dari 30genotipe (5 genotipe M5-Dewata,3 genotipe M5-Selayar, 11 genotipe M5-Oasis, 4 genotipe M5-Rabe, 5 genotipeM5-Kasifbey, 2 genotipe M5-Basribey) dan enam varietas pembanding yaitu Dewata, Selayar, Oasis, Rabe, Kasifbey, dan Basribey. Hasil percobaan menunjukkan bahwa perbedaan agroekosistem berpengaruh untuk budidaya gandum berpengaruh pada beberapa karakter yang diuji. Genotipe yang menunjukkan toleransi suhu tinggi yaitu M6- Dewata-1 dan M6-Oasis-11; genotipe yang medium toleran yaitu M6-Basribey-4, M6-Basribey-5, M6-Dewata-7, M6-Dewata-15, M6-Kasifbey-11, M6-Kasifbey-12, M6-Kasifbey-15, M6-Oasis-9, M6-Oasis-10, M6-Oasis-14, M6-Oasis-16, M6-Oasis-24 dan M6-Rabe-4; genotipe peka suhu tingggi yaitu M6-Dewata-12, M6-Dewata-16, M6-Kasifbey-6, M6- Kasifbey-14, M6-Oasis-4, M6-Oasis-5, M6-Oasis-6, M6-Oasis-8, M6-Oasis-22, M6-Rabe-3, M6-Rabe-16, M6-Rabe-20, M6-Selayar-1, M6-Selayar-2 dan M6-Selayar-3.

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