Jurnal Agro Industri Perkebunan
ISSN / EISSN : 2337-9944 / 2548-9259
Current Publisher: Politeknik Negeri Lampung (10.25181)
Total articles ≅ 49
Latest articles in this journal
Jurnal Agro Industri Perkebunan pp 121-129; doi:10.25181/jaip.v8i2.1391
Penelitian ini dilaksanakan di Politeknik Negeri Lampung pada bulan Desember sampai Februari 2019. Rancangan penelitian yang digunakan adalah Rancangan Acak Kelompok (RAK) faktorial dengan 2 faktor. Faktor pertama adalah sumber bud chip yang berasal dari 3 bagian batang yaitu B1 (atas), B2 (tengah) dan B3 (bawah). Â Faktor kedua adalah konsentrasi ZPT IAA dengan 4 taraf yaitu A0 (0 mg ), A1 (150 mg ), A2 (300 mg ), A3 (450 mg ). Â Variabel yang diamati adalah kecepatan tumbuh mata tunas, persentase tumbuh tunas (%), tinggi tanaman (cm), jumlah daun (helai) dan diameter pelepah (mm). Hasil penelitian menunjukan asal bibit bud chip bagian tengah memiliki pertumbuhan terbaik terhadap variabel kecepatan tumbuh, persentase tumbuh, tinggi bibit, jumlah daun, dan diameter pelepah. Pemberian ZPT IAA pada konsentrasi 0-450 mg l-1Â yang telah diterapkan pada sumber bud chip bagian atas, tengah, dan bawah dengan perlakuan perendaman selama 20 menit tidak memberikan dampak yang nyata pada kecepatan tumbuh, persentase tumbuh, tinggi bibit, jumlah daun, diameter pelepah dan tidak terdapat interaksi antara perlakuan asal bibit bud chip (atas, tengah, bawah) dan konsentrasi ZPT IAA (0 mg l-1 ,150 mg l-1Â ,300 mg l-1 dan 450 mg l-1 ).
Jurnal Agro Industri Perkebunan pp 109-119; doi:10.25181/jaip.v8i2.1376
Patchouli (Pogostemon cablin Benth) is a plant that produces essential oils and important foreign exchange earner for Indonesia. Using superior clonesÂ with the right fertilizer application will increase the yield of patchouli oil. The research aims to obtain patchouli plants that have the best response of urea fertilization application and optimum dosage of urea for patchouli plant growth. The study was conducted at the Politeknik Negeri lampungâ€™s teaching farm in December 2018 until May 2019. The experiment was conducted using a factorial randomized block design (RBD), consisting of two treatment factors, namely the type of urea clone. The first factor is the type of clone consisting of 2 levels, namely NPL 9 clone and Lhokseumawe clone. The second factor is the treatment of urea doses consisting of 4 levels, namely control, 250 kg.ha-1, 300 kg.ha-1, and 350 kg.ha-1. Variables observed included plantâ€™s height, bough, diameter, number of leaves, stalk angle, chlorophyll content, wet weight of plant, wind dry weight of plant, and yield. The results of research showedÂ NPL 9 clone had a superior appearance and 350 kg.ha-1 of urea doseÂ was the optimal dose compared to other doses and could increase patchouli yield 2,3% compared to the control treatment.
Jurnal Agro Industri Perkebunan pp 99-108; doi:10.25181/jaip.v8i2.1620
Root trainer technology can be an alternative for rubber plant nursery that have ease in transportation and distribution. Organic materials which are lightweight, porous, and contain nutrients are considered suitable for root trainer growing media. This research was carried out at Sungei Putih Research Center Greenhouse, Deli Serdang from January - May 2019. The research was arranged based on a Randomized Block Design (RBD) with 4 media combination treatments namely: top soil (P0), empty bunches and manure (P1), empty bunches and rice husks (P2), and empty bunches and solid decanters (P3). The results showed that the planting media did not have a significant effect on plant growth including stem diameter, plant height, and number of leaves, as well as the percentage of successful grafting. The treatment of oil palm empty fruit bunches and solid decanter gave better growth than other organic materials. The availability of empty bunches and solid decanter in North Sumatra is relatively abundant so that it can support rubber nurseries throughout the year.
Jurnal Agro Industri Perkebunan pp 85-98; doi:10.25181/jaip.v8i2.1480
Coffee is one of the plantation products with significant importance in the economy of Kerinci Regency, and several obstacles have been reported in agroindustry development. This study is focused on designing a strategy to develop the industry in the region. The study was conducted in Kerinci Regency from January 2017 until October 2017. The data was collected by observation, questionnaires, and in-depth interviews through Focus Group Discussion (FGD). In addition, research analysis used internal and external factor methods, internal and external matrices (IE Matrix), and SWOT matrices. The result show the value of the internal and external factors obtained to be 2,759 and 2,888, respectively. When mapped, the IE matrix value is in cell V (five). However, the suitable strategies are the growth and stability strategy, essential for market penetration and product development. Based on AHP analysis, the three main strategic priorities to be applied are land expansion (0,230), guidance and facilitation of the market information (0,178), and infrastructure improvement (0,124)
Jurnal Agro Industri Perkebunan pp 69-83; doi:10.25181/jaip.v8i2.1319
Â Non-conformance to products is produced due to unavoidable production processes. However, it can be minimized in terms of potential occurrences as well as providing a solution to achieve a minimum level of mismatch.Â This study aims to identify the percentages and types of discrepancy experienced by the company, analyzing process capabilities and identify underlying factors in discrepancy. The research has been done in May 2018. The reseach was implemented in lab and department of process at PT Sugar Labinta, Tanjung Sari, Lampung Selatan. The use of the six sigma method with a structured DMAIC approach is definie, measure, analyze, improve, and control. The tools used inÂ six sigma program on this research consisted of check sheet, caused diagram, p-control chart, and Pareto diagram. Itâ€™s processed through the software Minitab 18. The results showed the level sigma process in PT Sugar Labinta 5.04 and has a value DPMO 238.32 based on the table of achievement Sigma defined that the company is at the average level of the USA industri, then to be able to reach the level of Sigma 6 , the discrepancy in respect of the product does not exceed 8 tonnes per month.
Jurnal Agro Industri Perkebunan pp 61-68; doi:10.25181/jaip.v8i2.1377
Â The oil palm male flowers post anthesis is one of the solid wasted of oil palm which has not been much utilized.Â It can be used by processing into biofuel or bioethanol and to be alternative for fossil fuels whose availability is increasingly scarce.Â The purpose of this study were to determine the effect of several cycles of thermal delignification on the levels of lignin, holocellulose, and cellulose and to determine the best levels of lignin, holocellulose, and cellulose from the treatment of several thermal delignification cycles.Â This study used a one factor completely randomized design method with 3 treatments; one, two, and three cycle thermal delignification. Each treatments were three replications. Data were analized with analysis of variance with Î± 5 %, if there was a significant treatment effect, the further analysis using Tukey test.Â The results showed that the treatment of thermal delignification with several cycles had a significant effect on the levels of lignin, holocellulose, and cellulose. The best levels of lignin, holocellulose and cellulose were shown in the treatment of three cycles of thermal delignification.Keywords: bioethanol, cellulose, hemicellulose, holocellulose, lignin
Jurnal Agro Industri Perkebunan, Volume 8, pp 21-32; doi:10.25181/jaip.v8i1.1285
Coffee leaf rust (Hemileia vastatrix) caused large damage on Arabica coffee in Asia, Africa, and America. The resistant genotypes released to farmers in Brazil were developed from the existing cultivars. However, the cultivars of Arabica coffee existing in North Sumatra Province of Indonesia is not yet researched to find resistant genotypes. The goal of this reseach was to determine variability of coffee leaf rust and leaf morphology. In total of 84 genotypes growing in this Province were selected using nested design. Data was analyzed using nested design, correlation, stepwise regression, and hierarchical cluster analysis. This research revealed leaf rust severity had high genotypic variation, low heritability, and high genetic adveance. Ratios of leaf morhology showed moderate to high genotypic variation and heritabilities. Leaf rust severity (y) significantly correlated with both ratio of leaf length with leaf area (x1) and ratio of leaf length with leaf width (x2) with equation y = 2,04 + 62,48x1 3,95x2 with coefficient of multiple correlation R = 0,470**. By using leaf rust severity and these two ratios in cluster analysis, one cluster comprised 18 genotypes with medium leaf rust severity. It could be concluded that resistant genotypes of Arabica coffee might be possible to develop from the existing cultivars. Leaf rust severity might not be used as selection parameter in breeding for leaf rust resistance.
Jurnal Agro Industri Perkebunan, Volume 8, pp 33-41; doi:10.25181/jaip.v8i1.1371
One effort to improve quality of cocoa seedlings is application of bio fertilizer during the nursery. Nutrient supply is essential for growth and development of cocoa seedlings at nursery and field after transplanting. The aim of this research is to determine effect of bio fertilizer application to growth of cocoa seedlings. The study used a completetly randomized design with 4 treatments and 15 replications. The treatments were no fertilization (P1), chemical fertilization (P2), bio fertilizer every 2 weeks (P3) and bio fertilizer every 1 month (P4). The result showed that application of bio fertilizer every 2 weeks and 1 month can increase height, diameter and dry weight of cocoa seedlings on first until fourth months after fertilization. The Mycorrhizal Dependency (MD) of cocoa seedlings was classified as moderately dependent (27,0445,86%). The highest colonization of arbuscular mycorrhizal fungi on roots cocoa resulted by P4 treatment about 33,92%.
Jurnal Agro Industri Perkebunan, Volume 8, pp 49-59; doi:10.25181/jaip.v8i1.1392
West Lampung Regency still survives as the central area of coffee production in Lampung Province while production of other districts so far are declining. This research aims to study the ethno-agronomy of coffee cultivation in West Lampung which is tolerant to rainfall variability. This research was a survey located in Sumberjaya District and Sekincau District, West Lampung Regency, Lampung Province, Indonesia year 20182019 which from each subdistrict two villages was selected purposively and from each village one farmer group was chosen. Primary data were collected through interview, Focused Group Discussion (FGD), and observation of coffee farm. Secondary data were obtained from the BPS Lampung and rainfall data from Radin Intan Climate Station. The results showed that the area of coffee plantations in West Lampung in the last decade has decreased by 0,64% per year but productivity has increased by 1,42% per year, and in West Lampung, which is a mountainous region, the number of rainy days was negatively correlated with coffee yield while the number of dry months was positively correlated. Whereas in North Lampung, which is a medium elevation area, coffee productivity correlated with sufficient rainfall and productivity was negatively correlated with the number of dry months of the previous year. Coffee farmers in West Lampung have perception the need for various adaptation measures of coffee farm maintenance, which grafting adult coffee tree with superior local robusta clones is a typical ethno-agronomy practiced by coffee farmers in West Lampung to obtain high coffee yield.
Jurnal Agro Industri Perkebunan, Volume 8, pp 43-48; doi:10.25181/jaip.v8i1.1373
At this time there is the development of coconut plantations in the community, so that the need for coconut seeds continues to increase, to meet these needs it needs to be supported by the provision of good quality coconut seeds, worth planting in the field and have the criteria for simultaneous sprouts and high viability. Results seedling seed growers by famer have an average of 80% germination with a seed age of 11 and 12 months. This study aims to determine the ideal age of seeds to be used as seeds that have germination speed and high viability. The research was conducted using two treatments consisting of coconut seeds aged 11 months and coconut seeds aged 12 months. Each treatment contained 100 plants so that 200 coconut seeds were used. The difference in age of coconut seeds gives significantly different results when they appear germination, the fastest results obtained on 12-month-old seeds. At the sprout power the highest yield was obtained for coconut seeds aged 12 months.