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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 6 Documents
 1 
Search results for , issue "Vol 30 No 1 (2014)" : 6 Documents clear
Evaluation the resistance of cocoa clones (Theobroma cacaoL.) Agung Wahyu Susilo; Indah Anita Sari
Pelita Perkebunan (a Coffee and Cocoa Research Journal) Vol 30 No 1 (2014)
Publisher : Indonesian Coffee and Cocoa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iccri.jur.pelitaperkebunan.v30i1.192

Abstract

Acceleration on clonal selection of cocoa resistance to pod rot (Phytophthora palmivora)was carried out by early evaluation of the resistance using laboratory test. This research has objective to select the promising clone resistance to P. palmivora for field evaluation. Trials were carried out at the Laboratory of Plant Pathology at the Indonesian Coffee and Cocoa Research Institute using in-vitro inoculation. Isolate of P. palmivorawere collected from the infected pods at Jatirono Estate, Banyuwangi then inoculated to three mature pods of each tested clones. Trials were carried out in two steps to confirm the stability of performance of the resistance. A total of 41 clones were tested in these trials. However due to the availability of pod sample was limited then at 1st trial 31 clones were tested and at 2nd trial 37 clones were tested, both of the test using 27 same clones. The assessed variables were lesion size on pod surface due to Phytophthorainfection at 1st to 7th day after inoculation. The lesion sizes were significantly different among tested clones that performing any variability of the resistance. The variability were grouped into five groups as the resistant classification by which three clones were identified, namely Jano/IV/4/13 (TSH 858 x ICS 13), Jano next to I/7 and Kate/I/10/18 (Sulawesi 01 x TSH 858) consistently performing lowest size of the lesion compared to Sca 6 that could be selected as the resistant clones for field evaluation. Key words: cocoa clones, resistance, pod inoculation, Phytophthora palmivora
Effect of polyethylene glycol 6000 and storage period on seed quality of cocoa (Theobroma cacao L.) Astiti Rahayu; Triani Hardiyati; Ponendi Hidayat
Pelita Perkebunan (a Coffee and Cocoa Research Journal) Vol 30 No 1 (2014)
Publisher : Indonesian Coffee and Cocoa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iccri.jur.pelitaperkebunan.v30i1.193

Abstract

Increased productivity of cocoa needs high quality of cocoa seeds which are generally provided by certified seed gardens located far from smallholders farm, where seed delivery takes long time and may reduce physiological quality of seeds. One effort to maintain the seed quality is by treatment the seeds with polyethylene glycol6000 (PEG 6000). This study was aimed to study the interaction of PEG 6000 concentration and storage period on cocoa seed quality, and to determine the best concentration of PEG 6000 and storage period to maintain cocoa seed quality. The research was conducted in seed storage room, seed laboratory and green houseof PPPPTK, Cianjur. The experimental design used was a factorial completely randomized design and each combination treatment repeated three times. The first factor was concentration of PEG 6000 of 0%, 20%, 40%, and 60%, and the second factor was the storage period of 3 weeks, 6 weeks, 9 weeks, and 12 weeks. The results showed that concentration of PEG 60% with three weeks storage period was able to minimize the number of moldy seeds. The concentration of PEG 20%, 40%, and 60% were able to prevent seed germination in storage until six weeks. Concentration of PEG 6000 20% was able to maintain moisture content, seed germination, and germination rate.Key words:cocoa seed, storage, recalcitrant, PEG
Effect of Pollen Feed on Parasitization and Predatism of Cephalonomia stephanoderis onHypothenemus hampei Dwi Suci Rahayu; Endang Sulistyowati
Pelita Perkebunan (a Coffee and Cocoa Research Journal) Vol 30 No 1 (2014)
Publisher : Indonesian Coffee and Cocoa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iccri.jur.pelitaperkebunan.v30i1.194

Abstract

Biological control of the coffee berry borer (Hypothenemus hampei)using parasitoid Cephalonomia stephanoderishas been developed through the improvement of the parasitoid role may using pollens as feed source. The objective of this study was to investigate the effect of cover crop and weed pollens on parasitization and predatism of C. stephanoderis.The applied treatments were pollens of Turnera ulmifolia, Arachis pintoi, Ageratum conyzoidesadded in glass tube that consist of 10 CBB pupaes and a mated female of C. stephanoderis. Number of pupae parasitized and pupae preyed were observed. The result showed that addition of A. Pintoi pollen increased the number of pupae parasitized at 135% whereas addition of T. ulmifolia and A. conyzoides pollens did not affect parasitization of C. Stephanoderis. The predatismof C. stephanoderiswas higher than parasitization to pupae of H. hampei which showed that the behavior of C. stephanoderiswas parasitization. Addition of T. ulmifolia, A. pintoi, and A. conyzoidespollens increased the number of pupae predatism at 132%, 102%, and 225%, respectively. Key words: Ageratum conyzoides, Arachis pintoi, Cephalonomia stephanoderis, Hypothenemus hampei,parasitization, predatism, pollens, Turnera ulmifolia
The Effectiveness of Lemongrass, Garlic, and Tree Marigold as Botanical Insecticides in Controlling of Cocoa Mirid,Helopeltis antonii Endang Sulistyowati; Muhammad Ghorir; Suryo Wardani; Setyo Purwoko
Pelita Perkebunan (a Coffee and Cocoa Research Journal) Vol 30 No 1 (2014)
Publisher : Indonesian Coffee and Cocoa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iccri.jur.pelitaperkebunan.v30i1.195

Abstract

Control of cocoa mirid, Helopeltis antoniiso far uses chemicalinsecticides as the main alternative. Therefore, it is necessary to find out the environment friendly control techniques. Lemongrass, garlic, and tree marigold have been known as an efectiveness botanical insecticides for horticulture. A research with aim to study the effectiveness of lemongrass (Cymbopogon nardus), garlic (Allium sativum) and tree marigold (Tithonia diversifolia)for controlling H. antoniihave been carried out in cocoa plantation at Kaliwining experimental garden of Indonesian Coffee and Cocoa Research Institute. The research was arranged in split plot design in three replication, with the main plot infestation time of H. antoniiand sub-plot kind of botanical insecticides. Concentration of botanical insecticides used in this study was 5% and applied on 12 cm cocoa pod in length by using knapsack sprayer. Infestation of H. antonii nymphes were conducted before and after insecticide applications. Observation was conducted on the mortality and the lesion of H. antonii. The results of orthogonal contrast test on feeding activity based on the number of lesion and percentage of mortality of H. antoniishowed that there were significantly different between insecticide treatment and control, between chemical insecticide and botanical insecticides, but there was no significant different on kind of botanical insecticides. The lowest number of lesion due to H. antonii was shown by chemical insecticide with an average 34.0, followed by garlic and lemongrass botanical insecticide with number of lesion were 51.2 and 64.7 respectively, whereas the number of lesion in the control reached 84.2. The highest percentage mortality of H. antoniiwas shown by chemical insecticide with active ingredient teta-cypermethrin at 84.3%, followed by garlic, lemon grass and tree marigold botanical insecticide were 65.8%; 65.0%; and 63.8% respectively and significantly different with control by 8,3%. Based on no significantly different on the effect of time investation of H. antoniion their feeding activity and mortality, it can be concluded that the three botanical insecticides tested have a mode of action both as a repellent and contact poison. Key words: cocoa, Helopeltis antonii, botanical insecticide, lemongrass, garlic, marigold, teta-cypermethrin
Microbial Isolation Derived from Pineapple Extract and Its Application on Cocoa Pod Rot Disease, Phytophthora palmivora Sylvia Sjam; Ade Rosmana; Danial Rahim; Vien Sartika Dewi; Untung Surapati
Pelita Perkebunan (a Coffee and Cocoa Research Journal) Vol 30 No 1 (2014)
Publisher : Indonesian Coffee and Cocoa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iccri.jur.pelitaperkebunan.v30i1.196

Abstract

Cocoa pod rot, caused by Phytophthora palmivora,is one of the most important diseases in cocoa farm of Indonesia. Yield losses due to the disease were estimated in the range of 33–99%. Pod rot disease could be controlled using antagonistic fungi, Trichodermasp. and Gliocladiumsp., isolated from pineapple extract. The objective of this study was to evaluate the effectiveness of the two microbes derived from pineapple extract in suppressing the cocoa pod rot disease. The research was conducted at the Plant Pathology Laboratory, Faculty of Agriculture, Hasanuddin University and Cocoa Plantation of Pattalassang II Farmers Group, Pattalassang Village, District of Bantaeng, South Sulawesi from May to September 2012. The results indicated that two species of antagonistic fungi, Trichodermasp. and Gliocladiumsp. were dominant in pineapples extract. The mixture of both of microbes showed the ability to suppress the development of pod rot disease on cocoa plantation. Key worlds: cocoa pod rod, Phytophthora palmivora, Trichoderma sp., Gliocladium sp.
Reduction of Microbe Contamination through Steaming Process to Cocoa Beans Using Steaming Chamber Hendy Firmanto
Pelita Perkebunan (a Coffee and Cocoa Research Journal) Vol 30 No 1 (2014)
Publisher : Indonesian Coffee and Cocoa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iccri.jur.pelitaperkebunan.v30i1.197

Abstract

Dry cocoa bean quality is also determined by its microbe contamination level. Steaming process for dried cocoa beans as a pretreatment process was selected because of less effect on organic compound inside the dried cocoa bean. This experiment aim was to study microbial contamination level of cocoa beans using steaming process, determining its microbial population and evaluate its chemical changes. Experiment was carried out in Postharvest Laboratory of Indonesian Coffee and Cocoa Research Institute. Cocoa beans for the experiment were lots collected from four farms in Jayapura, Papua with different microbial contamination level for each lot. Results of this experiment showed that optimum steaming process was 15 minutes at 100 O C with 10 minutes preheating time. Microbial analysis result of the four lots after complete steaming process by total plate count method showed the same result (<3.0 x 103 cfu). Most of the decrease in microbial contaminant appeared in the plate was 73.5% of Staphylococcus aureusand 0.058% of Penicilliumsp. Bean acidity (pH) after steaming increased (4.76 to 4.80) and free fatty acid increased (1.81% to 1.96%) while carbohydrate content decreased (17.5% to 15.9%) and as well as protein content (12.6% into 11.7%). Key words: cocoa bean, steaming process, microbe reduction, nutrient changes

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