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All Journal JURNAL AGROTEKNOLOGI AGRIVITA, Journal of Agricultural Science Indonesian Journal of Biotechnology Jurnal Agro Kultivasi JURNAL AGROHITA Gema Agro JERAMI Indonesian Journal of Crop Science Jurnal Teknologi Pertanian Andalas International Journal of Agricultural Sciences Bioscientist : Jurnal Ilmiah Biologi Journal of Applied Agricultural Science and Technology Jagur: Jurnal Agroteknologi
Irawati Chaniago
Andalas University
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Social Sciences Other

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Journal : Journal of Applied Agricultural Science and Technology

 1 
Identification of Local Rice Genotypes from Deli Serdang, North Sumatera, Indonesia to Drought Stress Condition Irawati Chaniago; Noverina Chaniago; Irfan Suliansyah; Nalwida Rozen
Journal of Applied Agricultural Science and Technology Vol. 5 No. 1 (2021): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1298.514 KB) | DOI: 10.32530/jaast.v5i1.4

Abstract

Regency of Deli Serdang in the Province of Sumatera Utara has high diversity of landrace rice that has adapted to various climatic and edaphic condition including drought. Studies on various local rice genotypes tolerant to drought is of important to be carried out. This will help plant breeders with germplasms for future breeding program. Polyethylene glycol (PEG) is a water-soluble compound with high osmotic pressure and unlikely to have specific interaction with biological chemicals. With these properties, PEG is often be used in studies of plant response to drought stress. The experiment reported here was aimed at determining rice genotypes, local to Regency of Deli Serdang, tolerant to drought. The experiment was carried out at Laboratory of Physiology and Glass House of Faculty of Agriculture, Universitas Islam Sumatera Utara, Medan from February to April 2020. A two-way factorial experiment was assigned in a completely randomized design (CRD) with 3 replicates. The first factor was 23 local rice genotypes plus 4 genotypes tolerant to drought and the second factor was the concentration of PEG 6000 i. e 0 and 20% (w/v). Observations included percent of germination, plant height, length and number of roots protruding from paraffin-wax layer, leaf chlorophyll content, seedling fresh and dry weight, index of tolerance, probability of resistance, and proline content. Data were analyzed with analysis of variance and mean separation of DNMRT at 5%. Results demonstrated that 6 local rice genotypes, Gemuruh, Ramos Merah, Arias, Sialus, Silayur, and Sirabut were resistant to drought stress under the experimental condition.
Soil Tillage Affected Weed Community and The Growth and Yield of Soybean for Edamame Production Irawati Chaniago; Aswaldi Anwar; Rahmi Azhari
Journal of Applied Agricultural Science and Technology Vol. 7 No. 1 (2023): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/jaast.v7i1.131

Abstract

Edamame has been known as a vegetable soybean that is highly nutritious and has become popular in Indonesia. As for other crops, soybean cannot avoid the presence of weedy plants in the field. The study reported here aimed at determining the effect of tillage on weed and the growth and yield of soybean for edamame production. A randomized completely block design (RCBD) with three repetitions was used for the three tillage systems (zero, reduced, and conventional tillage). Data of soybean growth and yield component were collected and analysed with analysis of variance and mean separation of DNMRT at 5% level. Results show that most growth and yield parameter components (plant height, number of primary branches, number of leaves, number of pods per plant, pod weight per plant, number of seeds per plant, and yield) were highest in favor of reduced tillage system. The highest yield of edamame soybean (13.50 ton ha-1) was observed in the treatment group of reduced tillage and the effect was similar to that of conventional tillage (13.29 ton ha-1). Reduced and conventional tillage resulted in the emergence of new weed species such as Digitaria sanguinalis and Synedrella nodiflora with the total SDR value for all treatment groups of 54.38% and 37.74%, respectively. In contrast, the application of herbicide glyphosate prior to land cultivation has completely controlled Napier grass (Pennisetum purpureum Schumach.) and rough Mexican clover (Richardia scabra L.).
Literature Review Crop Modeling and Introduction a Simple Crop Model Le Huu Phuoc; Irfan Suliansyah; Feri Arlius; Irawati Chaniago; Nguyen Thi Thanh Xuan; Pham Van Quang
Journal of Applied Agricultural Science and Technology Vol. 7 No. 3 (2023): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/jaast.v7i3.123

Abstract

Modeling science has been applied by many advanced countries in many fields, such as geology, meteorology, climate change, crop productivity, environment, erosion, and landslide. The crop model simulates the processes of agriculture. The writing of this article is descriptive qualitative using the Systematic Literature Review (SLR) method. So far, each model has its advantages and disadvantages but generally is based on the physiology of the growth and development of crops in relationship with soil, climate, solar radiation energy, and limiting factors to plant growth. There have been many models for rice that can forecast yield and biomass or predict future climate change dynamics. Meanwhile, many models such as DSSAT, AquaCrop, Oryza, APSIM, EPIC need more data to operate their modeling, which in many cases, data is not readily available. In this review, we would like to introduce the model “SIMPLE” which includes only thirteen parameters and four of which describe cultivar characteristics. Another advantage of “SIMPLE” is that it can be adapted for many crop species and added variable modules such as nutrient dynamics, water stress, temperature stress, or pests. It is entirely open source based on R programming, but limitations still exist that have been mentioned in the review.
Lignin Degradation of Kapok Fiber (Ceiba pentandra, L) with Different Times of Pulping Fransiska Angelina Rezekinta; Anwar Kasim; Edi Syafri; Irawati Chaniago; Firman Ridwan
Journal of Applied Agricultural Science and Technology Vol. 7 No. 3 (2023): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/jaast.v7i3.186

Abstract

Lignin reduced the adhesion between the polymeric matrix and natural reinforcement in composite materials by its hydrophobic characteristic. Removal of lignin can be a solution to improve fiber function in composite use. This study aimed to determine the degradation of lignin at different times of pulping. The soda process was conducted at 60, 70, 80, 90, and 100 minutes of pulping using heat in a room atmosphere. Yields, lignin content, and lignin spectrum (FT-IR analysis) were measured.  The result showed the highest degradation of lignin was in 100 minutes of pulping with 80.34% lignin degradation and 3.57% lignin left in fibers. However, the yield of fibers decreased with increasing pulping time due to lignin removal. 100 minutes of pulping time showed the highest loss of fiber yield. This study showed the best pulping time for kapok fiber is 100 minutes with 3.57 % lignin remaining in the pulp.
Co-Authors Acram Taji Acram Taji Adi Purnama Angelina Rezekinta Anwar Kasim Anwar Kasim Anwar, Aswaldi Ardi Ardi Ardi Ardi Djong Hon Tjong Doni Hariandi Edi Syafri Edi Syafri Feri Arlius Firman Ridwan Firman Ridwan Fransiska Angelina Rezekinta FRISKIA HANATUL QOLBY Indra Dwipa Irfan Suliansyah Jamsari Jamsari Le Huu Phuoc Le Huu Phuoc Liza Aulia Yusfi Meisilva Erona Sitepu Muhamad Irsyad Muhammad Nizar Hanafiah MUHSANATI MUHSANATI Musliar Kasim Nalwida Rozen Nguyen Thi Thanh Xuan Nguyen Thi Thanh Xuan Noverina Chaniago Noverina Chaniago Novita Hera Novita Hera Paul Kristiansen Pham Van Quan Pham Van Quang Rahmi Azhari Reza Puspita Sari Robin Jessop Ronauli Fernandes Simanjuntak Ryan Budi Setiawan Sari, Winda Purnama Silitonga, Yusnita Wahyuni Siska Hanifa Winda Purnama Sari Winda Purnama Sari Yourga, Anze Zulfadly Syarif Zurai Resti