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INDONESIA
JERAMI Indonesian Journal of Crop Science
Published by Universitas Andalas
ISSN : 26549395     EISSN : 26553023     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Indonesian Journal of Crop Science, Jerami (JIJCS) is an open acces e-journal, formerly was published in printed form by PERAGI (Indonesian Agronomy Association) and supported by theDepartment of Crop Science, Faculty of Agriculture-University of Andalas. The JIJCS publishes original work twice in year (February and August) involving: research articles, reviews and short communications in the field of crop sciences. Scope coverage of this journal includes: agronomy, crop physiology, seed science, conventional and non-conventional breeding, crop production system and management, crop modelling, agroclimatology, soil (environmental) science and pest control in cropping system. JERAMI is now accepting new submissions through our online submission system.
Arjuna Subject : -
Articles 53 Documents
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The Effect of Shallot Bulbs Storage Duration and Paclobutrazol Treatments to Disease Attacks on Shallot Plant in Karo Highlands Rasiska Tarigan; Fatiani Manik; Susilawati Barus
JERAMI Indonesian Journal of Crop Science Vol 1 No 2 (2019): JIJCS
Publisher : Department of Crop Science, Faculty of Agriculture, Andalas University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (372.772 KB) | DOI: 10.25077/jijcs.1.2.8-15.2019

Abstract

A major challenge in the development of shallot seeds is the limited availability of qualified seed due to pathogen infection during the vegetative phase. The study aims to determine the effect of storage duration and paclobutrazol (PBZ) treatment to the resistance of shallots crop. The study was conducted at the Berastagi Experimental Fields, Vegetable Crops Research Institute in February to May 2017. The experiment was arranged by randomized block design with two factors. The first factor is bulbs storage duration, which is without storage and stored for 2 months. The second factor is PBZ treatment with levels ie 0, 0.5. 1, 1.5 and 2 mL/L. The observation parameters are the diseases percentage, diseases intensity, roots number, and roots length. The results showed that the shallot bulbs that singly stored had a significant effect on the diseases caused by Peronospora destructor, Alternaria porri, and Fusarium wilt with low percentage category. The PBZ treatment had not significant effect on all observation variables, but the interaction with 2 months storage duration had effect on root length at 60 days after planting (DAP).
The Application Of PCR RAPD Technique In Determining Female Sex Of Kapulasan (Nepheleum Lapaceum Mutabile) Edi Wirman
JERAMI Indonesian Journal of Crop Science Vol 1 No 2 (2019): JIJCS
Publisher : Department of Crop Science, Faculty of Agriculture, Andalas University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (565.072 KB) | DOI: 10.25077/jijcs.1.2.1-7.2019

Abstract

Kapulasan is one of horticultural plants derived from tropical region that has significant economic value. One of the obstacles in cultivating the plant is that kapulasan has flowering type of androdioceus, i.e. the male and the female flowers are separated. Female flowers produce hermaphroditic flowers that can produce fruits while the male ones will not produce fruits. In the cultivation of the plant, it is very difficult to determine the female flowers if they are propagated by seeds. It takes up to 7 years to determine the nature of the flowering. One of the important steps that can be done is through a system of early detection using molecular marks. RAPD technique as a simple technique can be used to distinguish the characteristics. The results of the research show that of the 250 primers used, the OPM-09 primer produces female sex bands related to the controller of the female kapulasan plants of which the ribbon produced is 512 bp in size.
The Physiological Differential Response Of Sugar Cane (Saccharum Officinaruml.) On Water Deficit Condition Renfiyeni Renfiyeni; Rhenly Danis; Dila Febria; Ishak Manti
JERAMI Indonesian Journal of Crop Science Vol 2 No 1 (2019): JIJCS
Publisher : Department of Crop Science, Faculty of Agriculture, Andalas University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (286.205 KB) | DOI: 10.25077/jijcs.2.1.1-13.2019

Abstract

Abstract Sugarcane is the main sugar-producing plant in the world and also plays an important role as a raw material for bioethanol production. Productivity improvement of the plant is exposed to environmental stress ie: water shortage which is currently a serious problem associated with the global climate change phenomenon. Understanding of plant responses to environmental stress is one of the keys to be able to resolve the issue. In this regard, the fundamental studies related to the sugarcane plant responses to water stress is very important. This study consists of a combination of two factors, namely the type of clones consisting of PS.864, PSJT.941, and VMC.76-16, 851 as tolerant group clones, PS.862, PS.882 and PS.851as non tolerant clones group and lack of water stress treatment for 5 days. The data were analyzed further using DNMRT at 5% significance level. Observations showed that tolerant clones as well as non-tolerant clones PS.862 showed better resistance response than non tolerant groups. The indication was shown by the value of the Relative Water Content (RWC), Specific leaf area (SLA) and Water Deficit Value (WDV). Total protein profiling of sugarcane grown under water deficit and its counterpart differentially distinguished by suppression of protein expression of about 35 kDa in all clones. While in the water deficit condition expression of a protein with a size of 25 kDa is remarkable expressed.
Physiological Characteristics of Soybean Leaves with and without Shading at Palm Oil Plantation, West Papua Alce Ilona Noya; Nouke L. Mawikere; Purbo Kurniawan; Deasy Mayawati
JERAMI Indonesian Journal of Crop Science Vol 2 No 1 (2019): JIJCS
Publisher : Department of Crop Science, Faculty of Agriculture, Andalas University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (152.034 KB) | DOI: 10.25077/jijcs.2.1.14-20.2019

Abstract

The objective of this research was to identify several leaf physiological characteristics of three soybean varieties with and without shading f Oil Palm Plantation. The research was carried out in the oil palm plantation area of PT. Medcopapua Hijau Selaras, Prafi District, West Papua from June to August 2018. This study used a Randomized Complete Design with three replications on two environmental conditions (shade and without shade). The second factor is soybean varieties, consisting of Detam 1, Demas 1 and Dena 1. Leaf samples were collected at seven weeks after planting. The result indicated that no interaction between environmental conditions and varieties on the content of chlorophyll a, chlorophyll b, the ratio of chlorophyll a/b, chlorophyll total, anthocyanin and leaf carotenoid. Conditions without shade increase chlorophyll b by 0.1334 mg/g compared to shaded. The Dena 1 variety has the highest chlorophyll a,b and chlorophyll total (1.1039,0.5587 and 1.6627 mg/g). All soybean varieties were not shown differences of anthocyanin or carotene leaves.
Prediction of gene action content of Na, K, and Chlorophyll for Soybean Crop Adaptation to Salinity Fachrina Wibowo; Armaniar Armaniar
JERAMI Indonesian Journal of Crop Science Vol 2 No 1 (2019): JIJCS
Publisher : Department of Crop Science, Faculty of Agriculture, Andalas University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (288.128 KB) | DOI: 10.25077/jijcs.2.1.21-28.2019

Abstract

Salinity area experienced an expansion that is the caused contamination of irrigation water, seawater intrusion, drought stress and excessive uses of fertilizers.varieties is one of the plant breeding programs to resolve the salinity problem, before that, however, the breeder must know plant adaptation mechanisms in morphology, physiology and biochemical so that the plant can be categorized adapt and as having potential for the tolerant varieties. This writing aims to know the action of genes through skewness and kurtosis estimation pattern Na, K, and chlorophyll content, so it is known if plant-able to adapt with salinity. This research used a destructive analysis. (A) Anjasmoro varieties, (G) Grobogan varieties, (N) Grobogan varieties that have been through repeated selection as a comparison. Research result shows the tolerant varieties having high K + ions.
The BAP Responses to the Flowering and Production on variety of Red Onions Fatiani Manik; Endah Retno Palupi; Mohamad Rahmad Suhartanto
JERAMI Indonesian Journal of Crop Science Vol 2 No 1 (2019): JIJCS
Publisher : Department of Crop Science, Faculty of Agriculture, Andalas University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (415.829 KB) | DOI: 10.25077/jijcs.2.1.43-52.2019

Abstract

The use of quality seeds can increase the production of garlic. One indicator of increased yield can be seen from the size of cloves. The research aimed to know the growth and production of garlic from clove size and different seeds storage method. The experiment was conducted at Experimental farm Berastagi that began February-June 2018. The experiments was arranged in Randomized Complete Block Design with two factors. The first factor is the size of cloves, namely: 2.3 g / clove, 1.4 g / clove, 0.7 g / clove and the second factor is the storage method of separation of tubers and separation of cloves.. The observed variables include plant height, leaf number, leaf length, stem diameter, tuber weight, tuber diameter, number of cloves, and ability to grow. The results showed that storage method had significant effect on percentage of germination seed. Clove weight and storage method not significant effect on plant height, leaf number, leaf length, neck diamter, tuber weight, tuber diameter and number of cloves. Interaction occurs between treatments the neck diameter of garlic
The Viability And Vigor Of Rice Varieties (Oryza Sativa L. ) Under High Temperature Afrima Sari; Aswaldi Anwar; Nalwida Rozen
JERAMI Indonesian Journal of Crop Science Vol 2 No 1 (2019): JIJCS
Publisher : Department of Crop Science, Faculty of Agriculture, Andalas University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (452.706 KB) | DOI: 10.25077/jijcs.2.1.33-42.2019

Abstract

The growth and initial development of the plant greatly determines the survival of the plant at the next stage. This initial phase is also the most sensitive phase of abiotic stress. The level of viability and vigor to produce normal sprouts can explain the success of germination. The aim of this research is to study the temperature change to viabilily and vigor in four rice varieties. Research started from January to February 2018 at Seed Technology and Plant Physiology Laboratory Andalas University and Chemistry Laboratory University Of Padang. This research applies Factorial Experiment in Completely Random Design, where the first factor is four levels of rice varieties, Anak Daro, Batang Piaman, Cisokan and Inpari 30. The second factor is temperature level, 28 0C, 32 0C, 36 0C, 40 0C, 44 0C and 48 0C. Viability and vigor decrease when temperature increase. The optimum temperature for rice germination is 28-32 0 C for Anak Daro, 28-36 0 C for Cisokan, at 28 0 C for Batang Piaman and Inpari 30. Anak Daro and Inpari 30 can germinate until 40 0C. The highest vigor index value at 28 0 C in Cisokan and Inpari 30 (89,33 %). At 28-32 0C Cisokan, Batang Piaman and Inpari 30 has been able to germinate on the second day after planting, but Anak Daro can normal germinate on the third day after planting.
The Effect of Level Farmers' Knowledge In Some Active Chemical Insecticides Resistance to Control Plutella Xylostella Scale Laboratory Catur Hermanto; Rasiska Tarigan; Fatiani Manik
JERAMI Indonesian Journal of Crop Science Vol 2 No 1 (2019): JIJCS
Publisher : Department of Crop Science, Faculty of Agriculture, Andalas University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (416.69 KB) | DOI: 10.25077/jijcs.2.1.22-32.2019

Abstract

Pengaruh Tingkat Pengetahuan Petani Pada Resistensi Beberapa Bahan Aktif Insektisida Kimia Untuk Mengendalikan Ulat Plutella Xylostella Skala Laboratorium The Effect of Level Farmers' Knowledge In Some Active Chemical Insecticides Resistance to Control Plutella Xylostella Scale Laboratory Catur Hermanto, Rasiska Tarigan dan Fatiani Manik Balai Penelitian Tanaman Sayuran – Badan Penelitian dan Pengembangan Pertanian Jln Tangkuban Perahu No 517, Lembang, Bandung Barat 40391; e-mail: mirasiskatarigan@gmail.com ABSTRAK Petani dan pestisida merupakan dua sisi yang saling berkaitan dalam mengendalikan serangan hama penyakit tanaman dilapangan Penggunaan pestisida oleh petani semakin hari kian meningkat khususnya didataran tinggi, namun peningkatan ini tidak diimbangi dengan pemahaman dalam menggunakan pestisida. Penelitian ini bertujuan untuk mengetahui pengaruh tingkat pengetahuan dan resistensi insektisida yang digunakan petani kubis di kabupaten Karo. Penelitian dilaksanakan di laboratorium Kebun Percobaan Berastagi dengan ketinggian tempat 1.340 mdpl yang dilaksanakan dari bulan september sampai november 2015. Pelaksanaan dibagi 2(dua) tahap. Tahap Pertama mengumpulkan makalah melalui teknik diskusi kelompok petani dan pengencer dan wawancara menggunakan kuisioner. Total jumlah responden 10 orang per 4 kecamatana. Dari hasil kuisioner dipilih jenis insektisida yang sering digunakan petani untuk diuji kepekaan ulat plutella xylostella terhadap insektisida yang diuji pada skala dilaboratoium. Empat perlakuan dengan masing-masing terdiri atas 9 taraf konsentrasi menggunakan rancangan acak lengkap dan diulang 3 kali. Hasil penelitian menunjukkan petani kubis dikabupaten karo melakukan pencampuran fungi dan insektisida > 2jenis dengan frekwensi penyemprotan 2 x 1 minggum serta dosis yang digunakan tidak sesuai dengan KF yang dianjurkan. Nilai LC 50 insektisida kimia dari bahan aktif klorantranilipro, prefenofos, sipemetrin dan kloropinofos berturut-turut 1,87 ml, 1,5 ml, 1,5 ml dan 2 ml. Dan waktu Waktu yang dibutuhkan untuk mematikan 50 % plutella xylostella (LT 50) dari keempat insektisida kimia berbahan aktif klorantranilipro, prefenofos, sipemetrin dan Kloropinfos berturut-turut adalah 39.20, 19.43, 23.57 dan 30.15 jam Kata kunci : Pengetahuan, Resistensi, Insektisida Kimia, Plutella xylostella , Laboratorium ABSTRACT. The Farmers and pesticides are important aspects that interrelated tocontroll pests in the field of plant diseases as well as opportunities occur resistensi. The use of pesticides by farmers is constantly increasing, especially in the highlands, but this increase is not offset by an understanding in the use of pesticides. The aimed of the research to find the knowledge and the use of insecticide resistance cabbage farmers in Karo District. The research was conducted at the laboratory of Berastagi experimental farm with altitude of 1,340 meters above sea level implemented from the month of September to November 2015. The implementation of divided by 2 (two) stages. The first is to collect issues by discussion technique of farmers group and diluent and interview using a questionnaire. Total number of respondents is ten peoples each four districts. From the questionnaire result so the selected types of insecticides often used by famers for the testing of sensitivity plutella xylostella to insecticides test at laboratory scale with four treatment. each consisting of 9 degree of concentration using a completely randomized design and repeated 3 times. each consisting of 9 degree of concentration using a completely randomized design and repeated 3 times. The results showed cabbage farmers in the county karo mixing fungi and insecticides> 2 types with spraying frequency of 2 x 1 week as well as the doses used did not correspond to the recommended KF. LC 50 value of the chemical insecticide active ingredient klorantranilipro, prefenofos, sipemetrin and kloropinofos successively 1.87 ml, 1.5 ml, 1.5 ml and 2 ml. Time and time required to shut down 50% of Plutella xylostella (LT 50) of the four chemical insecticide active ingredient klorantranilipro, prefenofos, sipemetrin and Kloropinfos are respectively 39.20, 19:43, 23:57 and 30.15 hours
Growth Response Of SRI Rice In Suboptimal Land To Application Of Cattle Manure And Kieserite Nalwida Rozen; Musliar Kasim; Agustian Agustian; Indra Dwipa
JERAMI Indonesian Journal of Crop Science Vol 2 No 2 (2020): 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.2.2.60-64.2020

Abstract

Population growth rates cause an increase in food demand, but the planting area is decreasing due to land-use change. The land available to be utilized by farmers is mostly suboptimal land. The disadvantages of suboptimal land are low pH values ​​(4.7) and a small number of nutrients (Nitrogen = 0.11%, Phosphorus = 0.45 ppm, very low Carbon, very high Aluminum, and medium Cation exchange capacity) and for increasing the value of suboptimal land can be given organic fertilizer such as cattle manure and kieserite. This study aims to determine the effect of cattle manure and kieserite on rice growth with the SRI planting system in suboptimal land. The study was carried out in farmers' paddy fields at Ambacang Market, Kuranji District, Padang from June to October 2019. This experiment uses a completely randomized design (CRD). Data were analyzed by the F test at a 5% significance level. If it is significantly different, it is continued with the Honestly Significant Difference test (HSD) at the 5% significance level. The results showed that the application of cattle manure and kieserite can increase the height of rice plants and the number of tillers.
The Role of Self-Supporting Extension Agent in Institutional Development of Farmers in Sijunjung Regency and West Pasaman Regency Hery Bachrizal Tanjung
JERAMI Indonesian Journal of Crop Science Vol 2 No 2 (2020): 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.2.2.79-85.2020

Abstract

The advancement of agriculture sector in one region cannot be separated from the role of agricultural extension in the region. To cover the deficiency of agricultural extension agents, self-supporting extension agents are recruited from farmers or private parties. This study aims to analyze the role of self-supporting instructors in improving farmer institutions and analyze factors related to the role of self-supporting extension agents in improving farmer institutions. This research was a qualitative descriptive study, and it was conducted in West Pasaman and Sijunjung Regency with a sample of 38 people. The results showed that self-supporting instructors play a significant role in improving farmer institutions; this is seen from 78% of self-supporting extension agents have a role in increasing farmer institutions. Factors related to the role of self-supporting extension agents in improving farmer institutions are (1) the age of agents, (2) the number of partners from farmer groups, and (3) the frequency of training attended by self-supporting extension agents. To increase the role of self-extension extension agents in the institutional development of farmers, it is recommended that institutions who manage the agricultural extension recruit self-supporting extension agents from the millennial generation and facilitate self-supporting extension agents to be able to participate in training related to farming in the agent's area of work.

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