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All Journal JURNAL AGROTEKNOLOGI AGRIVITA, Journal of Agricultural Science JURNAL AGROHITA Gema Agro JERAMI Indonesian Journal of Crop Science International Journal of Agricultural Sciences Journal of Applied Agricultural Science and Technology Jagur: Jurnal Agroteknologi
Irawati Chaniago
Fakultas Pertanian, Universitas Andalas Padang
Agriculture, Biological Sciences & Forestry Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Environmental Science Industrial & Manufacturing Engineering Social Sciences Other

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SOME WEED SPECIES AFFECTING SOYBEAN NODULATION AND NODULE FUNCTION Chaniago, Irawati; Taji, Acram; Kristiansen, Paul; Jessop, Robin
AGRIVITA, Journal of Agricultural Science Vol 34, No 2 (2012)
Publisher : Faculty of Agriculture University of Brawijaya and Indonesian Agronomic Assossiation

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

Abstract

Experiments aimed at examining the effect of aqueous extracts of three weed species on nodulation and nodule function of soybean cv. Melrose have been carried out at the Laboratory of Plant Physiology and Biotechnology, Department of Agronomy and Soil Science, University of New England, Australia. Aqueous extracts of fresh weed material (Amaranthus powellii, Cyperus rotundus and Paspalum dilatatum) at the concentration of 10% (w/v) were added to a minus-nitrogen Hoagland’s nutrient solution in which the soybean plants were grown with 14 hours day length, day and night temperatures of 28 and 20°C, respectively, light intensity of 790 mmol/m2/s, and the relative humidity of 65%. The plants were kept for three weeks prior to the measurement of activity of nitrogenase enzyme and ammonium content of the root nodules. Results demonstrate that all weed extracts reduced the nodulation and nitrogenase activities (ARA) of soybean cv. Melrose. Amaranth was most inhibitory to nitrogenase enzyme activity. However, amaranth extract was less inhibitory than nutgrass extract in total ammonium content.
SOME WEED SPECIES AFFECTING SOYBEAN NODULATION AND NODULE FUNCTION Chaniago, Irawati; Taji, Acram; Kristiansen, Paul; Jessop, Robin
AGRIVITA, Journal of Agricultural Science Vol 34, No 2 (2012)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v34i2.118

Abstract

Experiments aimed at examining the effect of aqueous extracts of three weed species on nodulation and nodule function of soybean cv. Melrose have been carried out at the Laboratory of Plant Physiology and Biotechnology, Department of Agronomy and Soil Science, University of New England, Australia. Aqueous extracts of fresh weed material (Amaranthus powellii, Cyperus rotundus and Paspalum dilatatum) at the concentration of 10% (w/v) were added to a minus-nitrogen Hoagland’s nutrient solution in which the soybean plants were grown with 14 hours day length, day and night temperatures of 28 and 20°C, respectively, light intensity of 790 mmol/m2/s, and the relative humidity of 65%. The plants were kept for three weeks prior to the measurement of activity of nitrogenase enzyme and ammonium content of the root nodules. Results demonstrate that all weed extracts reduced the nodulation and nitrogenase activities (ARA) of soybean cv. Melrose. Amaranth was most inhibitory to nitrogenase enzyme activity. However, amaranth extract was less inhibitory than nutgrass extract in total ammonium content.
Pupuk Organik Cair Kulit Pisang untuk Meningkatkan Pertumbuhan dan Hasil Tanaman Stroberi (Fragaria vesca L.) Reza Puspita Sari; Irawati Chaniago; Zulfadly Syarif
GEMA AGRO Vol 25 No 1 (2020)
Publisher : Fakultas Pertanian, Universitas Warmadewa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (315.383 KB) | DOI: 10.22225/ga.25.1.1718.38-43

Abstract

An experiment has been set in a completely randomized design to determine the best concentration of liquid organic fertilizer of peels of ‘kepok’ banana to increase the growth and yield of strawberry. The experiment was conducted at Nagari Koto Baru Simalanggang, Payakumbuh, the Regency of Lima Puluh Kota, West Sumatra from April to August 2019. The place lies at elevation about 540 m above sea level. Treatments were concentrations of liquid organic fertilizer of banana peels (0; 5; 10; 15; and 20%) and replicated three times. Data were analysed with analysis of variance and mean separation of Duncan’s New Multiple Range Test at 5%. Results demonstrated that 10% of liquid organic fertilizer of banana peels increased the growth of strawberry plants and shortened the time to flowering
PENGARUH INTRODUKSI ISOLAT RIZOBAKTERIA INDIGENUS TERHADAP PERTUMBUHAN DAN HASIL TANAMAN KENTANG (Solanum tuberosum L.) DAN DINAMIKA POPULASI GULMA DI ALAHAN PANJANG, SUMATERA BARAT FRISKIA HANATUL QOLBY; IRAWATI CHANIAGO; INDRA DWIPA; ZURAI RESTI
Jurnal Agroteknologi Vol 11, No 1 (2020): Agustus 2020
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/ja.v11i1.9411

Abstract

Potato (Solanum tuberosum L.) is of important major crops for its carbohydrate and plays important roles to support food sovereignty along with rice, wheat, corn, and sorghum. Potato growth and yield at West Sumatra has not reached its maximum potential due to some factors including cultivation. One major important constraint in potato growing in West Sumatra is the fact that farmers use the 8th to 12th generation of potato seedlings which have a very low agronomic potential. Yet, weeds have caused another problem in the field and reduce potato yield. An experiment has been conducted at the Laboratory of Microbiology, Faculty of Agriculture, Universitas Andalas and Nagari Alahan Panjang, Subdistrict Lembah Gumanti, Solok Regency from November 2018 to March 2019. The experiment was aimed at determining the best indigenous rhizobactria isolates to increase the growth and yield of potato plants as well as weed population dynamics associated with potato plants. Six isolates of indigenous rhizobacteria and a control treatment group were tested in a completely randomised design with three replicates. The isolates were L1 S3.1, L1 S3.2, L1 S4.4, L2 S1.2, L2 S2.3, L2 S3. 2. Data were analyzed with analysis of variance and mean separation with Duncan's New Multiple Range Test (DNMRT) at 5%. Results showed that isolate L1 S4.4 was best in increasing the number of branches, number of tubers, and weight of potato yield. The isolates tested affected weed populations dynamics, prior to treatments there were 8 species of weeds found at the field i.e Bidens pilosa L., Leptochloa chinensis, Eleusine indica L., Agerathum conyzoides, Richardia sp, Galinsoga parviflora, and Sonchus arvensis. During potato growing at the field, weed species of Eleusine indica L. and Gynura divaricata dissappeared from the soil. In contrast,  Amaranthus spinosus emerged demonstrating that weed population dynamic has occurred.
PENGARUH PEMBERIAN BERBAGAI KONSENTRASI ETHEPON TERHADAP PERTUMBUHAN DAN PRODUKSI TANAMAN MENTIMUN VARIETAS LOKAL DAN ANTARA (Cucumis sativus L.) Novita Hera; Zulfadly Syarif; Irawati Chaniago
Jurnal Agroteknologi Vol 8, No 2 (2018): Februari 2018
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/ja.v8i2.4225

Abstract

Research on the effect of giving various concentration ethepon to growth and production of cucumber was conducted in Nagari Kacang Kecamatan X Koto Singkarak, Solok, West Sumatra, from June to August 2008. The objectives of the study were (1) get interaction between several concentrations of ethephon with cucumber varieties, (2) obtaining the best ethepon concentration, (3) and knowing cucumber varieties that have better production. Factorial-factored experiments in Randomized Block Design with 2 factors and 3 groups. The first factor of ethepon concentration consisted of five levels 0, 100, 200, 300, 400 ppm. The second factor is cucumber varieties of Local and  Antara varieties. Observed variables: plant length, number of branches, when first male flowers appear, when the first female flowers appear, the number of male flowers, the number of female flowers, the number of straight fruit, the number of fruit is not straight, the fruit weight is straight, fruit weight is not straight. Providing ethepon concentration with crop varieties has an effect on growth and production of cucumber , that is when the first male flowers appear (hst). Provision of ethepon concentration of 200 ppm showed a better effect on the number of female flowers, the number of straight fruit, and the weight of the fruit straight. Factor varieties, singularly different to plant length variables, when the first female flowers appear, the number of straight fruit, the number of crooked fruit, the weight of the fruit straight, and the weight of the bent fruit. Local varieties show better production than Antara varieties.
SELEKSI BEBERAPA GENOTIPE GANDUM BERDASARKAN KOMPONEN HASIL DI DAERAH CURAH HUJAN TINGGI Nurwanita Ekasari Putri; Irawati Chaniago; Irfan Suliansyah
Jurnal Agroteknologi Vol 4, No 1 (2013): Agustus 2013
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/ja.v4i1.56

Abstract

This Research aimed to select wheat genotypes which potential to be developed in a high rainfall area. It was conducted at September 2012 to January 2013 in Alahan Panjang, Solok Regency, West Sumatera. Seventeen wheat genotypes were planted at Alahan Panjang, Solok, West Sumatera from September 2012 – January 2013, including local varieties (Nias, Selayar, Dewata). It used random design block with 3 replications and 10 samples each block. If genotypes were significant according to test f then continued by test duncan on standard 5 %. Observed variables were amount of spikelet per spike, amount grain of spikelet, amount of floret per spike, spikelet length and width, grain length and width, amount of full grain, amount of unfull grain and a thousand grain weight. The result showed that UAGDM 13 had a good amount of spikelet per spike. All genotypes had high amount of floret per spike except UAGDM16. A good spikelet length was belonged to all genotypes except UAGDM11 and UAGDM13. Grain length and width were not significant among all genotypes. Three genotypes which had a high amount of full grain were UAGDM5, UAGDM6 and UAGDM17. Genotype UAGDM1 was the best of a thousand grain weight.
Identification and selection of local carrot seeds (Daucus carota L) for seed sources Winda Purnama Sari; Meisilva Erona Sitepu; Irawati Chaniago
JERAMI Indonesian Journal of Crop Science Vol 4 No 1 (2021): JIJCS
Publisher : Department of Crop Science, Faculty of Agriculture, Andalas University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jijcs.4.1.23-28.2021

Abstract

Carrot (Daucus carota) is one of the most important root vegetables in Indonesia contains high levels of sugars, rich in β-carotene (pre-vitamin A), ethylene, and high levels of proteins. Carrot was reported as a medicinal plant in the gardens and an essensial part of the food coloring industry. In fact the seeds of carrot contain estrogen, and in some cultures are used as an effective method of contraception. Carrot have been promoted as a future ingredient in biofuels, the carrot seed oil has proved to be an excellent lubricant in industrial applications, appears in multitude of skin and hair care products and produced luteolin. Carrot grows vegetatively in the first season and produced seed in the second. The yield and quality of carrot grown is determined by the seed production technique which can flourish carrot seed production as well as to compensate high cost of carrot seed. The use of local varieties of carrot as seed source increase productivity through higt adaptability. The aim of research is to obtain the best possible tuber characteristic as a qualified seed source. Research was conducted by the exploration method of carrot tuber in Lembang Jaya area and study the morphological characters. The exploration result obtained 8 carrot tuber locations. The carrot tuber with a chantenay type had the best growth and yields of the seeds to develop.
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.
Responses of Growth and Grain Yield of IR50404 Rice to Temperature Stress Le Huu Phuoc; Irfan Suliansyah; Feri Arlius; Irawati Chaniago; Nguyen Thi Thanh Xuan; Pham Van Quan
International Journal of Agricultural Sciences Vol 6, No 1 (2022)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/ijasc.6.1.9-18.2022

Abstract

Climate changes, rising warmth, drought, and CO2, are now seriously influencing agriculture. In this study, four separate greenhouses (labeled GH1, GH2, GH3, and GH4) were built with plastic roofs and walls, except GH1, which had three walls with mesh to evaluate the impact of temperature stress on growth, biomass, and yield of rice variety IR50404 under different temperature regimes. The control treatment group was grown ambient, next to these greenhouses. GH1, GH2, GH3, and GH4’s temperatures were from 0.9 oC to 3.1 oC higher than the ambient (as control). Carbon dioxide concentrations in GH2, GH3, and GH4 were recorded higher than the ambient, from 34.1 ppm to 48.2 ppm. Total vegetative dry matter was reduced from 15.9% to 20.5%, while grain yield declined from 20.8% to 24.6% when the mean temperature increased from 2.9 oC to 3.1 oC. High temperature or a combination of high-temperature stress with elevated CO2 concentration reduced the grain yield and total vegetative dry matter.
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.).
Co-Authors Acram Taji Acram Taji Anwar Kasim Anwar, Aswaldi Edi Syafri Feri Arlius Feri Arlius Firman Ridwan Fransiska Angelina Rezekinta FRISKIA HANATUL QOLBY Indra Dwipa Irfan Suliansyah Le Huu Phuoc Le Huu Phuoc Meisilva Erona Sitepu Muhammad Nizar Hanafiah MUHSANATI MUHSANATI 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 Siska Hanifa Winda Purnama Sari Yusnita Wahyuni Silitonga Zulfadly Syarif Zurai Resti