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INDONESIA
Pelita Perkebunan
Published by Pusat Penelitian Kopi dan Kakao Indonesia
ISSN : 02150212     EISSN : 24069574     DOI : https://doi.org/10.22302/iccri.jur.pelitaperkebuna
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Pelita Perkebunan, Coffee and Cocoa Research Journal (CCRJ): ISSN:0215-0212 Since its establishment in 1911, Indonesian Coffee and Cocoa Research Institute (ICCRI) formerly Besoekisch Proefstation, had published its research findings through a journal call Mededelingen van het Besoekisch Proefstation. Between 1948-1981 the research institute was under the supervision of Bogor Research Institute for Estate Crops, and published its research findings through De Bergcultures which was later changed to Menara Perkebunan. Since the institute held the national mandate for coffee and cocoa commodities, and due to rapid increase in the research findings, ICCRI published its first issue of Pelita Perkebunanjournal in April 1985. Pelita Perkebunanis an international journal providing rapid publication of peer-reviewed articles concerned with coffee and cocoa commodities based on the aspects of agronomy, plant breeding, soil science, crop protection, postharvest technology and social economy. Papers dealing with result of original research on the above aspects are welcome, with no page charge. Pelita Perkebunan is managed by Indonesian Coffee and Cocoa Research Institute (ICCRI), which publish the research findings not only for coffee and cocoa but also other commodities relevant with coffee and cocoa, i.e. shade trees, intercrops and wind breakers.
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Articles 7 Documents
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Search results for , issue "Vol 29 No 3 (2013)" : 7 Documents clear
Terpene Profile, Leaf Anatomy, and Enzyme Activity of Resistant and Susceptible Cocoa Clonesto Vascular Streak Dieback Disease Adi Prawoto; Teguh Iman Santoso; Marifah Marifah; Laurentius Hartanto Nugroho; Sutikno Slamet Sastroutomo
Pelita Perkebunan (a Coffee and Cocoa Research Journal) Vol 29 No 3 (2013)
Publisher : Indonesian Coffee and Cocoa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iccri.jur.pelitaperkebunan.v29i3.12

Abstract

Vascular-streak dieback (VSD, Oncobasidium theobromae) is the most prevalent disease of Theobroma cacao L. in Indonesia. This study aims to analyze resistance mechanism to VSD based on terpene profile, leaf anatomy, chitinase, and peroxidase study. Resistant clones of Sulawesi 1 and Sca 6 and susceptible clones of ICS 60 and TSH 858 were used for terpene profile, leaf anatomy analysis, chitinase, peroxides, polyphenol, lignin, and cellulose analysis. Those clones and KEE 2, KKM 22 and ICS 13 were used for peroxides analysis. For trichome study, the resistant clones of Sulawesi 1, Sca 6, KEE 2, and KKM 22, and susceptible clones of ICS 60 and TSH 858 were used. GCMS analysis showed that chromatogram pattern of resistant and susceptible groups were quite similar, but resistant clones contained 22% more components than the susceptible ones. Resistant clones contained groups of pinene, decane, myrcene, and octadecanoic acid, while those substances on usceptible clones were absent. Trichome was thicker on younger leaf, and its density on the basal was higher than that on the middle and tip leaf parts. Trichome density of resistant clone was not always thicker than that of susceptible ones. On resistant clones, stomatal density was lower and width of stomate pits was narrower, while thickness of epidermis layer and pallisade parenchym were higher. Polyphenol content of resistant clones were higher but lignin and cellulose of both groups were similar. Chitinase activity which has a role in hydrolysis of mycelia cell wall was higher on the resistant clones, but peroxides which has a role in polymeration of lignin biosynthesis was similar between both groups. It is concluded that groups of terpene pinene, decane, myrcene, and octadecanoic acid, thickness of leaf epidermis, density and width of stomata pit, and chitinase activity plays important role in cocoa resistance to VSD. Key words: Theobroma cacaoL., clone, vascular-streak dieback, resistance, leaf anatomy, chitinase, polyphenol
Analysis of Cutting Growth Characteristics in Robusta Coffee(Coffea canephora Pierre.) Ucu Sumirat; Fitria Yuliasmara; Priyono .
Pelita Perkebunan (a Coffee and Cocoa Research Journal) Vol 29 No 3 (2013)
Publisher : Indonesian Coffee and Cocoa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iccri.jur.pelitaperkebunan.v29i3.9

Abstract

Development of Robusta coffee clones needs special characteristics for rootstock. This research was aimed to study the characteristics of cutting growth of Robusta coffee as influenced by genetic factor. The research was conducted at Indonesian Coffee and Cocoa Research Institute using 269 progenies originated from reciprocal crossing populations among three parentals, namely BP 409, BP 961, and Q 121. BP 308 an easy cutting-propagated genotype was used as control. The research was arranged in three replications of randomized completely block design with 10 cuttings per replication. Each cutting was single planted in plastic polybag of 15 cm x 25 cm without any growth-regulator treatment. Cluster analysis procedure showed root growth characteristics which could be divided into three groups namely easy (85.3%, 3.82 and 6.68 cm), moderate (57.6%, 1.73 and 4.01 cm) and difficult (25.1%, 0.58 dan 1.44 cm) based on proportion of rooted cuttings, number of primary root and length of root, respectively. On the other side, growth of sprout showed good homogenous characteristic, mainly indicated by proportion of sprouted cuttings which generally achieved up to 98% in average. Study on shoot-root ratio of cuttings resulted in two groups of progenies, namely the first which tended to be dominant on sprout growth and the second which tended to balance their root and sprout growth. Based on proportion of sprouted cuttings which almost achieved up to 100% and various proportion of rooted cutting, it could be indicated that growth of cuttings was started and dominated by the growth of sprout. Key words: Coffee canephora, progeny, genetic variation, cutting, rooting, sprouting
Quality and Flavor Profiles of Arabica Coffee Processed by Some Fermentation Treatments: Temperature, Containers, and Fermentation Agents Addition Yusianto .; Sukrisno Widyotomo
Pelita Perkebunan (a Coffee and Cocoa Research Journal) Vol 29 No 3 (2013)
Publisher : Indonesian Coffee and Cocoa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iccri.jur.pelitaperkebunan.v29i3.14

Abstract

Coffee fermentation is a step of wet processing. In fact, some microorganisms naturally exist on the surface of coffee cherry. Using a starter culture of microorganisms may change equilibrium of microorganism population. Among some safe fermentation agents are present in “ragi tape” (yeast), “ragi tempe”, and fermented milk. A fermentor machine equipped with eating-control and stirrer had been designed, and tested before. Some treatments investigated were fermentation containers (fermentor machine and plastic sacks); fermentation agents (fresh cage-luwakcoffee, “ragi tape”, “ragi tempe”, and fermented milk); temperature of fermentation (room, 30 C, 35 C, and 40 C); and duration of fermentation (6, 12, and 18 hours). The experiment were replicated three times. Wet-coffee parchments were washed and sundried until moisture content reached 12%. The dried parchment was hulled and examined for the bean quality and flavors. The experiment indicated that 40 C fermentation in fermentor machine resulted in higher content of “full sour defect”. Fermentation agents significanly influenced bean size. Temperature treatment significanly influenced bulk density and bean size. The best flavor profile was obtained from fermentation in plastic sack at ambient temperature. Bacteria of fermented milk and “fresh luwak coffee” as fermentation agents resulted up to excellent flavor. Twelve hours fermentation produced best flavor of Arabica coffee compared to 6 and 18 hours. Key words: Arabica coffee, fermentation, flavour, fermentation agents
Development of Selection Criteria on Bean Weight Character of Cocoa (Theobroma cacaoL.) through Path Analysis Approach Indah Anita Sari; Agung Wahyu Susilo
Pelita Perkebunan (a Coffee and Cocoa Research Journal) Vol 29 No 3 (2013)
Publisher : Indonesian Coffee and Cocoa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iccri.jur.pelitaperkebunan.v29i3.10

Abstract

Path coefficient analysis is frequently used for development of selection criteria on various type of plants. Path analysis on this research was conducted to find the selection criteria of yield component which directly affect bean weight. In addition to the value of path analysis coefficient, genetic variation coefficient, heritability and the value of genetic progress were also studied. The study was conducted at the Indonesian Coffee and Cocoa Research Institute. The research used randomized complete block design consisting of 14 accession numbers and each consisting of three replications. Pod girth, pod length, pod weight, wet beans weight per pod, number of normal beans per pod, number of abnormal beans per pod, dry weight per normal bean, and shell content were observed. The results showed that the pod weight character had an important role in determining the dry weight of normal bean. The character had a positive genotype correlation coefficient values which was high and significantly different (r=0.46) for dry weight per normal bean, considerable direct influence (P=0.479), moderate of the genotype variation coefficient (9.6%), and high genetic progress (95.23). Character of wet bean weight per pod could also be used indirectly for the selection criteria for dry weight per normal bean based on genetic variation coefficient value (11.88%), genetic progress value (82.48), and direct effect on dry weight per normal bean had positive value (P=0.006). Key words: Selection criteria, dry weight per bean, path analysis,Theobroma cacaoL.
Effect of Price Determinants on World Cocoa Prices for Over the Last Three Decades: Error Correction Model (ECM) Approach Lya Aklimawati; Teguh Wahyudi
Pelita Perkebunan (a Coffee and Cocoa Research Journal) Vol 29 No 3 (2013)
Publisher : Indonesian Coffee and Cocoa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iccri.jur.pelitaperkebunan.v29i3.15

Abstract

High  volatility  cocoa  price  movement  is  consequenced  by  imbalancing between power demand and power supply in commodity market. World economy expectation and market  liberalization would lead to instability on cocoa prices in  the  international  commerce.  Dynamic  prices  moving  erratically  influence the benefit  of market players, particularly  producers. The aim of this research is  (1)  to  estimate  the  empirical  cocoa  prices  model  for  responding  market dynamics and (2) analyze short-term and long-term effect of price determinants variables  on cocoa prices.  This research  was  carried out by  analyzing  annualdata from 1980 to 2011, based on secondary data. Error correction mechanism (ECM)  approach was  used  to  estimate the  econometric  model  of  cocoa  price.The  estimation  results  indicated  that  cocoa  price  was  significantly  affected  by exchange rate IDR-USD, world gross domestic product,  world inflation, worldcocoa production, world cocoa consumption, world cocoa stock and Robusta prices at varied significance level from 1 - 10%. All of these variables have a long run equilibrium relationship. In long run effect, world gross domestic product, world  cocoa  consumption  and  world  cocoa  stock  were  elastic  (E  >1),  while other  variables  were  inelastic  (E  <1).  Variables  that  affecting  cocoa  pricesin  short  run  equilibrium  were  exchange  rate  IDR-USD,  world  gross  domestic product,  world  inflation,  world  cocoa  consumption  and  world  cocoa  stock. The  analysis  results  showed  that  world  gross  domestic  product,  world  cocoa consumption  and  world  cocoa  stock  were  elastic  (E  >1)  to  cocoa  prices  in short-term.  Whereas,  the  response  of  cocoa  prices  was  inelastic  to  change  of exchange rate IDR-USD and world inflation.Key words: Price determinants, cocoa, Error Correction Model, demand, supply, stock
Response of Arabica Coffee Cultivated on Andisols on Organic Matter Applications Pujiyanto .
Pelita Perkebunan (a Coffee and Cocoa Research Journal) Vol 29 No 3 (2013)
Publisher : Indonesian Coffee and Cocoa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iccri.jur.pelitaperkebunan.v29i3.11

Abstract

Andisols  are characterized  by  dominance  of  amorphous  minerals  which form strong and stable bonding with organic matter, therefore Andisols always contain high organic matter. For that reason, organic fertilizer is generally not applied  on  Andisols,  because  it  is  assumed  that  it  will  not  give   any  positive effect  on  growth  or  yield.  The  experiment  was  aimed  to  evaluate  response  of mature Kartika 1  Arabica coffee variety (seven years old) cultivated on  Andisols applied with organic matter derived from cow dung manure. The experiment was carried out at Andungsari  Experimental Station located in Bondowoso District, East  Java. Elevation of the site was 1,150 m asl., with rainfall type of C (Schmidt &  Fergusson).  The  experiment  was    arranged  according  to  completely randomized  block  design  with  four  replications  to  evaluate  effect  of  ninecombination  treatments  of  application  rates  at   application  depths  of  50,  100, and 150 cm. The  range of organic fertilizers rates were  0 - 13.5 kg/tree/year. The experiment revealed that cow dung manure applications on Arabica coffee cultivated  on  Andisols  significantly  increased  yield  at  the  average  of  33% compared  to  the  untreated  crop.  No  significant  effect  of  the  treatment  onvariables of leaf water deficit and soil moisture content during dry season and root  density.  At  range  of  application  depths  of  50  -  150  cm,  the  deeper  the organic matter applications, the higher the yield will be.Key words: Andisols, Arabica coffee, organic matter, cow dung manure
Identification of a Disease on Cocoa Caused by Fusariumin Sulawesi Ade Rosmana; Hikmawati Hikmawati; Asman Asman
Pelita Perkebunan (a Coffee and Cocoa Research Journal) Vol 29 No 3 (2013)
Publisher : Indonesian Coffee and Cocoa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iccri.jur.pelitaperkebunan.v29i3.13

Abstract

A disease presumed to be caused by Fusarium was observed in cocoa open fields with few or without shade trees. Within the population of cocoa trees in the field, some trees had died, some had yellowing leaves and dieback, and the others were apparently healthy. In order to demonstrate Fusarium species as the causal pathogen and to obtain information concerning the incidence of the disease, its distribution and its impact on sustainability of cocoa, isolation of the pathogen, inoculation of cocoa seedlings with isolates and a survey of disease has been conducted. Fusarium was isolated from roots and branches, and inoculated onto cocoa seedlings (one month old) via soil. Symptoms appeared within 3-4 weeks after infection. These symptoms consisted of yellowing of leaves beginning from the bottom until the leaves falldown, and browning internal of vascular tissue. Darkened vascular traces in the petiole characteristic of vascularstreak dieback infection were absent. The occurrence of Fusarium in the field was characterized by the absence of obvious signs of fungal infestation on root of infected trees, yellowing of leaves on twigs, dieback, and tree mortality in severe infestations. Disease incidence could reach 77% and in this situation it was difficult for trees recover from heavy infections or to be regenerated in the farm. The study proves that Fusarium is a pathogen causing dieback and the disease is called as Fusarium vascular dieback (FVD). Its development is apparently enhanced by dry conditions in the field. Key words: Fusarium sp., vascular disease, dieback, FVD, Theobroma cacao L.

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