Pelita Perkebunan (a Coffee and Cocoa Research Journal)最新文献

{"title":"Rootstock, scion, and microbiome contributions to cadmium mitigation in five Indonesian cocoa cultivars.","authors":"Jennifer Elise Schmidt, Mikael Dorman, Andrew Ward, Alana Firl","doi":"10.22302/iccri.jur.pelitaperkebunan.v39i3.555","DOIUrl":"https://doi.org/10.22302/iccri.jur.pelitaperkebunan.v39i3.555","url":null,"abstract":"Reducing levels of heavy metals such as cadmium (Cd) in cacao beans has become an important priority for cacao production in Indonesia. Current mitigation strategies revolve around breeding and the use of soil ameliorants, and in the future, the soil microbiome may also have the potential to reduce Cd bioavailability and uptake by cacao trees. However, there remains a need for locally specific recommendations for low-Cd-accumulating cacao cultivars and knowledge of native beneficial bacteria and fungi. In a greenhouse study using field soil supplemented with Cd, five cacao clones (MCC02, M01, S1, S2, and ICCRI 9) were grafted in a fully factorial design to the same hybrid half sibling rootstocks, plant uptake was measured before and after the addition of cadmium nitrate, and rhizosphere microbial communities were characterized. Rootstock, scion, and graft combinations all significantly affected plant Cd levels, but the ranking of clones differed between low and high Cd soils. Twenty-six bacterial taxa and one fungal taxon were associated with Cd uptake. These results highlight the continued importance of breeding as a cadmium mitigation strategy and support the potential for the soil microbiome to contribute to reducing cadmium uptake in cacao.","PeriodicalId":428979,"journal":{"name":"Pelita Perkebunan (a Coffee and Cocoa Research Journal)","volume":" 21","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138960628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Callus formation of Coffea canephora induced with 2,4 dichlorophenoxyacetic acid and tomato extract supplements","authors":"Nurul Rifqah Fahira, A. I. Latunra, Eva Johannes","doi":"10.22302/iccri.jur.pelitaperkebunan.v39i3.565","DOIUrl":"https://doi.org/10.22302/iccri.jur.pelitaperkebunan.v39i3.565","url":null,"abstract":"Robusta coffee (Coffea canephora) is Indonesia's essential leading trade commodity. Robusta coffee is preferred for its bitter taste. However, robusta coffee productivity decreased due to bad agriculture practice. Tissue culture is an alternative to cultivation with various advantages. The plant growth regulators (PGRs) influence tissue culture’s success. Due to its stability, 2,4 dichlorophenoxyacetic acid has become a common synthetic PGRs. PGRs can be obtained from natural ingredients, such as tomatoes. This study aimed to analyze the effect of 2,4-dichlorophenoxyacetic acid and tomato extract addition and its appropriate concentration for callus induction of robusta coffee in vitro. This research was conducted at the Tissue Culture Laboratory, Department of Biology, Faculty of Mathematics and Natural Sciences, Hasanuddin University. This study used a Complete Randomized Design with two factors. The first factor was the concentration of tomato extract (0%; 7.5%; 10%; and 12.5%). Meanwhile, the second factor was the concentration of 2,4 dichlorophenoxyacetic acid (0 ppm; 1 ppm; 2 ppm; and 3 ppm). Observation parameters include the percentage of callus formation, callus growing time, callus fresh weight, callus color, and callus texture. The quantitative data were analyzed by the Kruskal-Wallis test followed by the Mann-Whitney Test to compare the effect of each treatment. The results showed that among other treatment combinations, treatment with the addition of 2 ppm 2,4-D and 10% tomato extract (T2D2) and treatment with the addition of 3 ppm 2,4-D and 10% tomato extract (T2D3) had the best effect in inducing the callus of robusta coffee.","PeriodicalId":428979,"journal":{"name":"Pelita Perkebunan (a Coffee and Cocoa Research Journal)","volume":" 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138961891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Various roasting characteristics against alteration of antioxidant activity, amino acids content, and flavor of Java Ijen-Raung coffee beans","authors":"Hasbi Mubarak Suud","doi":"10.22302/iccri.jur.pelitaperkebunan.v39i3.563","DOIUrl":"https://doi.org/10.22302/iccri.jur.pelitaperkebunan.v39i3.563","url":null,"abstract":"The coffee roasting keys are temperature and time. Coffee beans have many chemical and physical reactions while the roasting is running. These reactions are characterized by a pattern in the drying and development phases during coffee roasting. This study discussed how roasting affected the characteristics of coffee beans, particularly antioxidant activity and amino acids, and also tried to define the roasting process by describing each roasting phase. The study discussed these characteristics of Java Ijen arabica coffee, which has speciality coffee criteria. The roasting process can increase amino acids and antioxidant activity inside the coffee beans, but the excessive heat and longer duration of roasting can burn the amino acids. Based on this study, the highest antioxidant Activity was found in beans that had been roasted with a total roasting time under 13 minutes, started with charge temperature of 148oC, and released at 190.5oC. The beans that had been roasted with a total duration under 13 minutes, started with charge temperature of 149oC, and released at 184.8oC is the best roasting degree with the highest score on the cup test.","PeriodicalId":428979,"journal":{"name":"Pelita Perkebunan (a Coffee and Cocoa Research Journal)","volume":" 841","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138960366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sensory and physicochemical attributes of chocolate soft candy with different gelling agents.","authors":"Taufik Rahman, Siti Khudaifanny Dasa Febrianti Asna Putri","doi":"10.22302/iccri.jur.pelitaperkebunan.v39i3.562","DOIUrl":"https://doi.org/10.22302/iccri.jur.pelitaperkebunan.v39i3.562","url":null,"abstract":"Indonesia is one of the cocoa-producing countries. One of the modifications of processed cocoa is chocolate soft candy. This study aimed to determine the effect of the type of gelling agent on the sensory and physicochemical characteristics of chocolate soft candy. This study used a completely randomized design with one factor using several gelling agents, namely gelatin, carrageenan, and konjac, with the control being soft candy without adding the gelling agent. The analyses included texture, moisture content, ash content, reducing sugar levels, and sensory evaluation. The results showed that adding several types of gelling agents significantly affected the soft candy produced. The highest moisture content of soft candy was the treatment with 12.26% gelatin. The minor ash content added gelatin of 0.71%, and the highest reducing sugar levels added carrageenan of 10.21%. The highest value of taste and texture parameters is obtained by adding konjac soft candy.","PeriodicalId":428979,"journal":{"name":"Pelita Perkebunan (a Coffee and Cocoa Research Journal)","volume":" 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138960963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluating the influence of economic aid and land ownership on the reduction in coffee yield and its socioeconomic consequences: A case study of the Akuapem North Municipality, Ghana.","authors":"Adams Latif Mohammed, Joseph Cobbinah, Frank Addai","doi":"10.22302/iccri.jur.pelitaperkebunan.v39i3.561","DOIUrl":"https://doi.org/10.22302/iccri.jur.pelitaperkebunan.v39i3.561","url":null,"abstract":"Coffee is a highly valuable tropical agricultural commodity and is the second most traded commodity in the international market after oil. Despite coffee being cultivated in Ghana since the late 18th century, around the same time as cocoa was introduced, cocoa has become the more dominant crop due to coffee's low yield in Ghana. As a result, many farmers have shifted their focus from coffee farming to other crops, particularly cocoa, as it has become the country's primary source of foreign exchange. The purpose of the research was to investigate the impact of the reduction in coffee production on the livelihoods of farmers in the Akuapem North Municipality in the Eastern Region. The study aimed to identify the reasons behind the decline in coffee production as perceived by the farmers, as well as to determine their views on potential solutions to the problem. The purposeful sampling method was used to select two (2) communities, namely Apirede and Tinkong, based on the intensive production of coffee in the municipality. The snowball sampling method was used to select 50 respondents from the two communities. The results showed that most (92%) respondents were males, while the remaining 8% were females, which means a lot of males are into coffee production in the district. The majority (24%) identified inadequate financial assistance from the government and other financial sources as the major cause of the decline in coffee production. The majority (26% each) chose financial assistance from the government and access to credit as a way to improve coffee production. The majority (94%) of the respondents indicated that the decline in coffee production has affected their income. The study established that the government, NGO's, and other financial institutions such as banks or credit institutions in Akuapem North Municipality must take responsibility for granting loans or credit to farmers to address problems of finance encountered in their search to maximize the economic returns of the coffee industry. In addition, the government could also help coffee farmers acquire vast arable lands through clearly defined tenure rights and agreements for land owners and coffee farmers in the Akuapem North Municipality.","PeriodicalId":428979,"journal":{"name":"Pelita Perkebunan (a Coffee and Cocoa Research Journal)","volume":" 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138963015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structure and labor use pattern among cocoa farmers in Ondo State, Nigeria","authors":"Y. Oladokun, K. Oluyole, Akinpelu Ayodele Oladipo","doi":"10.22302/iccri.jur.pelitaperkebunan.v39i3.548","DOIUrl":"https://doi.org/10.22302/iccri.jur.pelitaperkebunan.v39i3.548","url":null,"abstract":"Human labour is about the only main source of labour available to smallholder farmers in Nigeria. Smallholder farmers contribute over 85% of domestic agricultural output in Nigeria, hence, human labour accounts for the domestic food supply in Nigeria. Therefore, the need to continue supplying food for the ever-growing Nigerian population anchors on human labour productivity. In Nigerian agriculture, hired labour is predominantly used. Human labour plays a very significant role in agricultural development, especially in developing countries where technological development is still very low. In view of the importance of labour in agricultural production, this study was designed to investigate the structure and use pattern of farm labour in the study area. The study was carried out in Ondo state, Nigeria. A multistage sampling technique was used to collect data from 160 farmers. After sorting for missing data, 144 cocoa farmers’ data were used for analysis in this study. Seventy-five percent of the total \u0000respondents were above 50 years of age and about 25.01% of the total respondents were 50 years and below. The majority (79.17%) of the farmers were men. Also, 75.07% of the respondents had a formal level of education. In the study contract type of labour is majorly used for most activities in cocoa farming while cooperative labour was seldom used. Activities such as land clearing (75.0%), planting (83.32%), weeding (95.83%), application of chemicals (91.67%), removal of mistletoes (87.50%), harvesting of cocoa pods (87.50%), conveyance of cocoa pods to the pod breaking point (95.83%), breaking of cocoa pods (100%) and conveyance of cocoa beans to the point of fermentation (88.33%) were majorly carried out by contract labour. Male labour was mostly utilized for all the activities as indicated by most farmers. Female labour was sparingly utilized for some activities such as land clearing (8.33%), planting (0%), application of chemicals (8.33%), spraying of chemicals (4.17%), removal of mistletoes (0%) and harvesting of cocoa pods (12.5%). The study recommended that funds should be made available to farmers to engage in contract labour and also there should be the need to use equipment and machinery to reduce drudgery.","PeriodicalId":428979,"journal":{"name":"Pelita Perkebunan (a Coffee and Cocoa Research Journal)","volume":"114 42","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138959609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Identification of cocoa (Theobroma cacao L.) genetic uniformity through RAPD molecular markers.","authors":"Sulistyani Pancaningtyas, Nur Afni Helia Dewi, Mukhamad Su’udi","doi":"10.22302/iccri.jur.pelitaperkebunan.v39i3.566","DOIUrl":"https://doi.org/10.22302/iccri.jur.pelitaperkebunan.v39i3.566","url":null,"abstract":"Theobroma cacao L. has been propagated through either generative or vegetative techniques. One of the vegetative methods of propagating cocoa is somatic embryogenesis. Somatic embryogenesis has been employed by the Indonesian Coffee and Cocoa Research Institute for producing cocoa seedlings. Plant breeding activities are hampered by the significant level of plant heterogeneity among their progeny. Mislabelling of genetic impurities can be an issue. Molecular markers can be used to detect genetic variation at an early stage. The most common marker is the RAPD molecular marker. The study aims to determine the polymorphic RAPD primers in the analysis of genetic uniformity between mother plants and the seedlings derived from somatic embryogenesis (SE). The analyzed samples consisted of twelve individuals: six mother plants and six seedlings derived from SE. The results revealed that the percentage of polymorphic bands was 100% with band sizes ranging from 295-2785 bp for primer GY169 while for primer GY107 percentage of polymorphic bands was 80% with band sizes ranging from 345-1678 bp. Primer GY169 and primer GY107 can be amplified and used for cocoa similarity and heterogeneity.","PeriodicalId":428979,"journal":{"name":"Pelita Perkebunan (a Coffee and Cocoa Research Journal)","volume":"120 44","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138959358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Variability of factors influencing coffee export performance in Indonesia.","authors":"Rizky Yanuarti, Dani Widjaya","doi":"10.22302/iccri.jur.pelitaperkebunan.v39i3.556","DOIUrl":"https://doi.org/10.22302/iccri.jur.pelitaperkebunan.v39i3.556","url":null,"abstract":"Abstract \u0000Empirical evidence is lacking on the nexus between coffee commodity output and commodity price volatility of developing countries especially during pandemic era. The most visible impact from an economic perspective is the change of price expectation on people's basic needs which are in line with the decline of economic growth in Indonesia. This has significant implications, particularly considering the important role of coffee in supporting the country's economy.  The aim of this study is to examine the factors that influence the performance of coffee exports in Indonesia. The novelty of this study lay on the used national dataset within the range of 20 years (2000-2020) and including the pandemic effect on coffee sector performance. We examines the relationship between variables and coffee exports in Indonesia using unit root tests, cointegration analysis, and an Error Correction Model (ECM). The results show that coffee exports, total area, coffee production, coffee price, gross national income, and coffee imports have significant influences on coffee exports. The variables of total area and coffee production impact coffee exports negatively in the long term, while coffee price, gross national income, and coffee imports have mixed effects. In the short term, total area and coffee production significantly affect coffee exports, while coffee prices and gross national income show no significant impact. Coffee imports have a significant negative influence on coffee exports in the short term. These findings contribute to understanding the dynamics of the coffee industry in Indonesia.","PeriodicalId":428979,"journal":{"name":"Pelita Perkebunan (a Coffee and Cocoa Research Journal)","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138966863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessing the demand and current status of agricultural mechanization in major coffee-production areas of Ethiopia","authors":"Dessye Belay Tikuneh, M. M. Issa, Yared D Tefera","doi":"10.22302/iccri.jur.pelitaperkebunan.v39i2.547","DOIUrl":"https://doi.org/10.22302/iccri.jur.pelitaperkebunan.v39i2.547","url":null,"abstract":"Ethiopia, the primary coffee producer in Africa and the fifth in the world is facing challenges in agricultural mechanization. The research aims to assess the status, constraints, preferences, and demand of mechanization in Ethiopia, focusing on strategies to improve smallholder access to capital-intensive inputs and bridgethe gap between mechanization and farmers’ needs. A household survey and focus group discussions were conducted on 136 random samples using a multistage procedure, with semi-structured questionnaires used to interview 81 households of small-scale and 19 households of large-scale coffee farmers. The studyfound that preferences for each operation during coffee production are based on difficulties in work drudgery, with 42.45% believing that the first energy-consuming operation is hole digging for coffee plantation and cultivation. Coffee harvesting is a highly time-sensitive operation for 49.4% of smallholder farmers, with handtools being the main implement dominantly used for weeding. Poor harvesting practices reduce the quality of coffee during processing, and some unions have two or more wet mills using old machinery. The main challenges for low mechanization in Ethiopia include difficult topography, fragmented land, a lack of manpower,lack of awareness of technology, weak linkages of coffee mechanization channels, high technology costs, a shortage of running budgets, and a weak support system of cooperatives and unions. Experts suggest that capacity building on extension systems is the best way to facilitate the extension system of coffee mechanization technology. Assessments of technology manufacturers, machine assemblers, maintenance service providers, and importers were conducted in Harar, Hawassa, Jimma, Bonga, and Addis Ababa cities. Challenges include a lack of enabling laws and incentives to facilitate business start-ups. Importation of small-scale enginedriven equipment is an additional means to meet demand in some cooperativesand may provide farmers with an alternative source of cheaper machinery. Ethiopian academics and higher education institutions are essential players in exploring mechanization options, and public and private sectors, including cooperatives and farmer organizations, need to have a clear understanding of their respectiveresponsibilities and areas for collaboration. ","PeriodicalId":428979,"journal":{"name":"Pelita Perkebunan (a Coffee and Cocoa Research Journal)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123693165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Stability analysis of fat and polyphenol content of five cocoa clones grown in different environment in Indonesia.","authors":"M. Al-Afandi, Indah Anita Sari, Agung Wahyu Susilo, Arya Widura Ritonga, B. Setyawan, Abdul Malik","doi":"10.22302/iccri.jur.pelitaperkebunan.v39i2.576","DOIUrl":"https://doi.org/10.22302/iccri.jur.pelitaperkebunan.v39i2.576","url":null,"abstract":"Fat and polyphenols are functional compounds in cocoa beans that determine product quality and are highly influenced by environmental factors. Informationregarding the stability of the character of the polyphenol and fat content of the cocoa plant is still limited, therefore it needs further study. This study aimed todetermine the stability of fat and polyphenol content in several cocoa clones at three different growing locations. The study used a nested design with a randomized block design with field design consisting of five cocoa clones, three different growing locations and each combnation treatment was repeated three times. The cocoa clones used were ICCRI 09, MCC 02, Sulawesi 1, KW 516, and KW 562, planted in three different growing locations namely, Kaliwining Experimental Station, Jember, East Java; Sekampung Udik, East Lampung, Lampung; and Harapan Jaya, Pesawaran, Lampung. The combined analysis of variance indicated that there was a genetic interaction with the environment for the character of fat and polyphenol content. Based on the stability analysis, it is known that all cocoa clones fall into the stable category according to the concept of static stability. Furthermore, based on addtive main effect and multiplicative interaction (AMMI) analysis, the clones that can be recommended for Jember, East Lampung and Pesawaran locations for the character of fat content are clone KW 516, while for the characters of high and stable polyphenol levels at the three locations are clones MCC 02, KW 516, and KW 562. In addition, the most recommended clone based on fat content at Jember was the MCC 02 clone, KW 562 at East Lampung, and KW 516 clone at Pesawaran. The existence of the phenomenon of genetic interaction and the growing environment for the characters of fat and polyphenols in cocoa plants provides important information, especially in considering the development of cocoa for specific purposes, namely parameters of fat and polyphenols.","PeriodicalId":428979,"journal":{"name":"Pelita Perkebunan (a Coffee and Cocoa Research Journal)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129935615","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}