scholarly journals Similarity Analysis of Robusta Coffee Plant (Coffea robusta L.) at Three Altitudes in Merangin District, Jambi Province

Author(s):  
Acep Sopandi ◽  
Zulfadly Sayrif ◽  
Reni Mayerni
Agrikultura ◽  
2016 ◽  
Vol 27 (3) ◽  
Author(s):  
Heru Rizka Santosa ◽  
Cucu Cucu Suherman ◽  
Santi Rosniawaty

ABSTRACTResponse on plant growth of Robusta coffee (Coffea robusta L.) to aluminum stress in reclamation of coal mines vegetated sengon (El Nino period)Reclamation of coal mines commonly has low fertility rates with high aluminum saturation. Aluminum stress could be negative impact on plants that are not tolerant, can cause toxicity and inhibition of plant growth. This research in order to determine the effect of aluminum stress on plant growth of robusta coffee in reclamation of coal mines vegetated sengon. Stress aluminum effect on plant growth of Robusta coffee in reclamation is shown on parameter of plant height, stem diameter, leaf area, shoot dry weight, root length are lower than Robusta coffee plants in nurseries (control), and parameter of volume root, root dry weight are higher than the control. The content of aluminum (Al) in leaves of coffee plant in reclamation (117.7 ppm) is higher than control (26.1 ppm). Based on roots observation do not shown symptom of inhibition or toxicity of aluminum stress, and result of analysis of Al content in the roots is 25 ppm belongs to category is low( < 60 ppm), then the Robusta coffee plant belongs to the category tolerant to aluminum stress in reclamation of coal mines vegetated sengon.Keywords: Coffee, Stress, Aluminum (Al), Roots, ReclamationABSTRAKLahan reklamasi bekas tambang batubara umumnya memiliki tingkat kesuburan rendah dengan kejenuhan aluminium tinggi. Cekaman aluminium berdampak negatif bagi tanaman yang tidak toleran dan dapat menimbulkan toksisitas sehingga mengakibatkan penghambatan pertumbuhan tanaman. Penelitian ini bertujuan untuk mengetahui pengaruh cekaman aluminium terhadap pertumbuhan tanaman kopi robusta pada lahan reklamasi bekas tambang batubara bervegetasi sengon. Hasil penelitian memperlihatkan cekaman aluminium di lahan reklamasi bekas tambang batubara bervegetasi sengon berpengaruh terhadap pertumbuhan tanaman kopi Robusta, yang ditunjukkan pada parameter tinggi tanaman, diameter batang, luas daun, bobot kering pupus, panjang akar yang lebih rendah dibandingkan tanaman kopi Robusta di nurseri (kontrol), dan parameter volume akar, bobot kering akar yang lebih tinggi dibandingkan kontrol. Kandungan aluminium (Al) di daun pada lahan reklamasi lebih tinggi (117,7 ppm) dibandingkan kontrol (26,1 ppm). Berdasarkan pengamatan akar pada tanaman kopi di lahan reklamasi, tidak terlihat gejala penghambatan atau toksisitas akibat cekaman Al, dan hasil pengujian kandungan Al di akar adalah 25 ppm, termasuk kategori rendah (< 60 ppm), maka tanaman kopi Robusta termasuk kategori toleran terhadap cekaman aluminium yang terdapat di lahan reklamsi bekas tambang batubara bervegetasi sengon.Kata kunci : Kopi, Cekaman, Aluminium (Al), Akar, Lahan reklamasi


2021 ◽  
Vol 9 (Spl-2-ICOPMES_2020) ◽  
pp. S264-S268
Author(s):  
Herlina Rante ◽  
◽  
Subehan . ◽  
Retno Wulandari ◽  
Yayu Mulsiani Evary ◽  
...  

Now in these days infectious diseases seriously affect human health and sometimes these infections might become the cause of human mortality. Most of these infectious diseases are caused by bacteria, viruses, and fungi. Although large numbers of antibiotics are available increasing drug resistance in these microorganisms became a serious matter of concern in the scientific community. There is an urgent need for research on alternate natural products that can manage these pathogenic microorganisms without inducing any resistance. The purpose of this study was to determine the antibacterial activity of Robusta coffee (Coffea robusta L.) fruit peel extract against 5 human pathogenic bacteria i.e. Bacillus subtilis ATCC 6633, Staphylococcus aureus ATCC 25923, Escherichia coli ATCC 25922, Pseudomonas aeruginosa ATCC 27853, and Salmonella thypi NCTC 786. The sample was extracted using the maceration method with methanol as the solvent. The antibacterial activity of fruit peel extract was determined by using the agar diffusion method while the presence of active ingredients was determined by the using TLC-Bioautography assay performed using the mobile phase of n-hexane: ethyl acetate (1 : 3). The results of the study revealed significant antibacterial activity of coffee peel extract against E. coli and B. subtilis with an inhibition zone of 10.15 mm and 10.96 mm, respectively. Furthermore, results of the TLC-Bioautography revealed that the compounds at Rf 0.76 inhibit the growth of E. coli and the compounds at Rf 0.27 inhibit the growth of B. subtilis bacteria. These active spots were suspected to be flavonoid and phenolic compounds, respectively but further confirmation detail study is required in the future.


2021 ◽  
Vol 306 ◽  
pp. 01025
Author(s):  
I Wayan Sunanjaya ◽  
Ni Made Delly Resiani ◽  
I Made Rai Yasa

Coffee is one of the leading commodities traded in the world and is a mainstay commodity for farmers in mountainous areas. The research objective is to increase the added value of the part of the coffee plant to increase income and food security for farmer families. The research was conducted in the Pupuan-Tabanan Bali robusta coffee agroforestry area, Januari 2017 to December 2020. Methods of data collection using the method of observation and discussion with the main actors who produce coffee in addition to seed study activities with the use of pruned water shoots from clone maintenance BP 308. Data analysis was carried out quantitatively and qualitatively. The results showed that the added value besides dry beans was obtained from water shoots, remaining productive pruning, unproductive old coffee, branches and twigs, and shade pruning. The yields of economic value are in the form of super cuttings, activated charcoal, exotic pots, and quality organic fertilizers from coffee skins, each of IDR 7,500,000; 120,000; 792,000; and 150,000.


Author(s):  
Syahruni Thamrin ◽  
Junaedi Junaedi ◽  
Irmayana Irmayana

The study aims to determine the effect of various doses of NPK fertilizer on the growth of Robusta coffee plant seeds.  The study was conducted at the screen house of the Department of Plantation Plant Cultivation at the Pangkep State Polytechnic of Agricultural.  The study uses a simple statistical analysis with a Randomized Group Design (RBD) pattern, which is to calculate the mean (average) of each experiment, which consists of 3 levels of treatment, namely: without applying NPK fertilizer (P0), NPK fertilizer application with a dose of 14 grams (P1), application of NPK fertilizer at a dose of 18 grams (P2), and application of NPK fertilizer at a dose of 22 grams (P3). The results showed that NPK fertilizer application had no significant effect on plant height, number of leaves and stem diameter of coffee plant seedlings.    But visually, the best treatment for plant height is NPK fertilizer with a dose of 18 grams (P2), for the number of leaves is NPK fertilizer with a dose of 22 grams (P3), and for the stem diameter all treatments are the same except for the smallest P1.


2018 ◽  
Vol 8 (1) ◽  
pp. 678-680
Author(s):  
Ayu Rahmawati Sulistyaningtyas ◽  
Erma Prihastanti ◽  
Endah Dwi Hastuti

2020 ◽  
Vol 21 (10) ◽  
Author(s):  
Iis Nur Asyiah ◽  
Imam Mudakir ◽  
Mohammad Hoesain ◽  
Ankardiansyah Pandu Pradana ◽  
Achmad Djunaidy ◽  
...  

Abstract. Asyiah IN, Mudakir I, Hoesain M, Pradana AP, Djunaidy A, Sari RF. 2020. Consortium of endophytic bacteria and rhizobacteria effectively suppresses the population of Pratylenchus coffeae and promotes the growth of Robusta coffee. Biodiversitas 21: 4702-4708. Pratylenchus coffeae as the coffee-parasitic nematode can cause a yield loss from 28.7% to 78.4% on Robusta coffee (Coffea canephora A. Froehner). Environmentally friendly and sustainable efforts can be made to control this nematode by applying the antagonistic agents from the bacterial group. The application of antagonistic agents in a consortium has a better effectivity than a single application. This study was aimed to identify the effectivity of the consortium of endophytic bacteria and rhizobacteria formulated on a cost-effective molasse medium against the P. coffeae population and growth of Robusta coffee in a greenhouse. A total of nine bacterial isolates of genus Bacillus and Pseudomonas were used during experiment. The formulation was prepared by mixing the bacterial suspension and 2% molasses with a ratio of 1:1 (v/v). The greenhouse assay was performed following the completely randomized block design pattern with five treatments and five replications. Robusta coffee plant clone BP 936 was treated with a 10 mL (109 CFU mL-1) bacterial consortium mixture while control was treated with 10 mL sterilized water. Each plant was inoculated with P. coffeae 50 J2 after a week of bacterial consortium application. The result showed that all bacterial consortiums were effective in suppressing the population of P. coffeae in soil and root of Robusta coffee. All consortiums gave a better result than control in suppressing the population of P. coffeae. The best suppression of nematodes was shown by the Cst 02 consortium with the suppression value of 62.5% in the root and 76.1% in the coffee plant rhizosphere. The application of bacterial consortium increases the plant height (28.02-44.51%), number of leaves (127.27-168.18%), and leaf area (278.8-425.57%). In this study, suppression of P. coffeae population by bacterial consortium showed a positive correlation with plant growth. This study presents the information of endophytic bacteria and rhizobacteria consortium from Bacillus and Pseudomonas group that is effective in suppressing the population P. coffeae and improves the growth of Robusta coffee.


2020 ◽  
Vol 9 (2) ◽  
pp. 22-25
Author(s):  
Mahdalena ◽  
Anis Munandar

The effects of various growing media and liquid organic fertilizers on the growth of robusta coffee (Coffea robusta L.) seedlings. The research was conducted for 12 weeks (3 months) from March to June 2020. The research was conducted at the Agrotechnology Experimental Garden, Widya Gama Mahakam University, Samarinda. This study aims to determine: 1. The right planting media for the growth of robusta coffee (Coffea robusta L.) seedlings 2. Liquid organic fertilizer (POC) is appropriate for the growth of robusta coffee plant seedlings (Coffea robusta L.). 3. The interaction between planting media and liquid organic fertilizer (POC) on the growth of robusta coffee (Coffea robusta L.) seedlings. This study used a factorial randomized block design (RBD) with 2 factors and repeated 3 times. The first factor is the Planting Media (M) which consists of 4 levels, namely, M1 = Soil, M2 = Soil + Rice Husk (2: 1), M3 = Soil + Sawdust (2: 1), M4 = Soil + Coconut Coir ( 2: 1). The second factor is Liquid Organic Fertilizer (P) consisting of 3 levels, namely: P0 = Topsoil (control), P1 = POC 50% Fragrant Lemongrass Tofu Wastewater (ALTSW) (500 ml ALTSW + 500 ml water), P2 = POC Extract Gamal leaf (EDG) (500 ml EDG + 500 ml water). Based on the research results, the following conclusions can be drawn: 1. There is a significant effect of the application of growing media on the increase in height, stem diameter, and the number of leaves. Soil media with rice husks gave the best response to the growth of robusta coffee (Coffea robusta L.) seedlings. 2. There was a significant effect of POC application on height increase, stem diameter, and the number of leaves. The liquid organic fertilizer of Gamal leaves gave the best response to the growth of robusta coffee (Coffea robusta L.) seedlings. 3. There is a media interaction with liquid organic fertilizer (POC) which has a significant effect on the increase in height, stem diameter, and number. The combination of soil growing media treatment with rice husks and Gamal leaf POC gave the best response to the growth of robusta coffee (Coffea robusta L.) seedlings. The expected output is to provide information about the best planting media for the growth of Robusta coffee seeds for the community. Providing information about the best liquid organic fertilizers for the growth of Robusta coffee seeds for the community. Keyword : Gamal Leaves, Tofu Dregs Waste, Wood Powder


2020 ◽  
Vol 7 (3) ◽  
pp. 182
Author(s):  
Ginanjar Hidayatullah ◽  
Herniyati Herniyati ◽  
Leliana Sandra Deviade Putri

Malocclusion is an occlusion that deviates from the normal state, so it needs to be treated using an orthodontic device. The formation of new alveolar bone after obtaining an orthodontic force will be surrounded by osteoid bones are not stable enough (relapse). Robusta coffee (Coffea robusta) has flavonoids which can increase lymphocyte proliferation. The purpose of this study was to analyze the effect of robusta coffee on the number of lymphocyte cells in the tension area of marmot’s (Cavia cobaya) periodontal ligament which induced by mechanical orthodontic forces. This type of research is laboratory experimental with the Post Test Only Control Group Design. The average number of lymphocyte cells in group A = 0.75, B = 1.45, C = 1.26, D = 1.54. One-way Anova test results showed that the number of lymphocyte cells in all groups showed a significant difference (p <0.05). The results of the post hoc LSD test showed that group A had significant differences with group B and group D (p <0.05). While group C did not have a significant difference with group A (p> 0.05). The conclusion obtained is that the provision of robusta coffee brew for 2 weeks can increase the number of lymphocyte cells in the tension area of marmot’s (Cavia cobaya) periodontal ligament which induced by orthodontic mechanical forces compared to without robusta coffee brew.


2019 ◽  
Vol 2 (2) ◽  
pp. 76
Author(s):  
Annisa Marchantia Pratiwi ◽  
Hari Kaskoyo ◽  
Susni Herwanti ◽  
Rommy Qurniati

Agroforestry systems, with products in the form of robusta coffee, can increase income and environmental sustainability. The research objective is to find out the robusta coffee marketing channel. Retrieval of data through interviews with actors or institutions involved, observation, and documentation studies. The data obtained were analyzed descriptively qualitatively about the structure, behavior, and market channels. The results of the study indicate that there are several marketing institutions, namely: farmers, collectors, wholesalers, retailers, and cooperatives. In addition, there are three channels of robusta coffee marketing, namely: (1) farmers to collectors, then wholesalers and retailers, (2) farmers to cooperatives, then retailers, and (3) farmers to cooperatives. The most efficient channel is the third channel, but most farmers choose to sell their coffee to the first channel. This is because of the closer distance to the collecting traders, the lending of money given to farmers by collecting traders, and the absence of special treatment for coffee sold. The market structure formed in coffee marketing is the oligopsonist market, where the price of coffee is determined by large traders. The capacity of cooperatives should be improved by the government in order to compete with collectors, wholesalers, and retailers.


2019 ◽  
Vol 4 (1) ◽  
pp. 1
Author(s):  
Rahma Yulia ◽  
Adek Zamrud Adnan ◽  
Deddi Prima Putra

<p><span>The influence of different species of civet on caffeine content of Robusta civet coffee ( Coffea Robusta) had been done. The Civet species used are </span><em>Paradoxurus Hermophroditus </em><span>(Pandan civet) and </span><em>Arctictis Binturong</em><span> ( Bulan civet). The Coffee used is Robusta varieties ( Coffea Robusta). Caffeine’s level of robusta civet coffee has been given to two species of civet and after that they are analyzed using TLC Scanner Method quantitatively. The process of robusta civet coffee extraction was done by using Dichloromethane solvent and sonicated for 15 minutes on  themperature 40 º C, then the filtrate obtained was filtered with whatmant filter paper, then concentrated by using rotary evaporator. The quantitative analysis measured from the caffeine was measured using Thin Layer Chromatograpy ( TLC ) then Scanned by Densitometry ( TLC Scanner ) to obtain the content of caffeine from the civet coffee. Robusta coffee beans given to the civet Bulan (</span><em>Arctictis Binturong)</em><span> species have 1,91 % caffeine content where the caffeine content is higher when compared to robusta  coffee given to Pandan civet (</span><em>Paradoxurus Hermophroditus)</em><span> which has only 1,30 % caffeine. Based on the SPSS 21 anne-ment using anava Three Roads, it is known that differences in civet species affect the levels of robusta civet coffee caffeine.</span></p><p>Telah dilakukan Penelitian Pengaruh Perbedaan Spesies Luwak Terhadap Kadar Kofein dari Kopi Luwak Jenis Robusta (<em>Coffea Robusta</em>). Spesies Luwak yang digunakan adalah <em>Paradoxurus Hermophroditus</em> ( Luwak Pandan) dan <em>Arctictis Binturong</em> ( Luwak Bulan). Kopi yang dipakai adalah spesies Robusta ( <em>Coffea Robusta</em>). Kadar kofein kopi luwak robusta yang diberikan kepada dua spesies luwak tersebut kemudian dianalisis menggunakan metode TLC Scanner secara kuantitatif. Proses Ekstraksi Kopi luwak robusta dilakukan dengan  menggunakan pelarut diklorometan dan disonikasi selama 15 menit kemudian filtrate yang diperoleh disaring dengan kertas saring Whatman kemudian dipekatkan dengan rotary evaporator. Analisis kuantitatif dari kofein di ukur dengan menggunakan Kromatografi Lapis Tipis ( KLT ) kemudian di Scanning dengan alat  Densitometri (TLC Scanner) sehingga diperoleh kadar kofein dari kopi luwak tersebut. Biji Kopi Robusta yang diberikan pada Spesies luwak Bulan ( Arctictis Binturong ) mempunyai kadar kofein 1, 91 % dimana kadar kofein ini lebih tinggi jika dibandingkan dengan kopi robusta yang diberikan kepada luwak pandan (<em>Paradoxurus Hermophroditus)</em> yang hanya memiliki kadar kofein 1, 30 %. Berdasarkan analisis SPSS 21 menggunakan Anava tiga Jalan diketahui bahwa perbedaan spesies luwak mempengaruhi kadar kofein kopi luwak robusta.</p>


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