Diana Chalil

Universitas Sumatera Utara · Agribusiness

Palm oil is a commodity with a significant land area development. Thus, raises concerns about its impact on the landscape. This study uses a case study in South Tapanuli, a center of smallholder oil palm plantations with a high conservation value and an action plan for a sustainable palm oil program. This study uses a combination of a desk study of...

To implement physical distancing during the COVID-19 pandemic, many universities around the world have applied online and E-learning methods. Although faced with several obstacles, online and E-learning methods also provide many opportunities. One of them include the reduction of paper usage, which in 2019 totaled to 394 million tons worldwide. To...

This study was conducted in South Tapanuli District, which is one of the two oil palm centres implementing the landscape management project. Data collected from Regional Plan documents and 169 smallholder samples and analysed with Cross Tabulation and Compare Means Test. The results show that landscape management has been implemented through Region...

Smallholders are a group of oil palm growers in Indonesia, having a share of more than 40% of the Indonesian oil palm plantation area. There are a number of weaknesses that limit their inclusivity in the industry, posing a risk to their sustainability. This study analyses this hypothesis through 3 different types of smallholders representing the hi...

Citronella oil production has been developed by the Regional Government of the South Tapanuli District through the Forest Management Unit (KPH), the Agriculture Office and the Industry Office. For KPH, this program serves to gradually replace oil palm smallholdings in forest areas. For the Agriculture and Industry Offices, this program is intended...

With a total area of 16.3 million ha, oil palm plantations in Indonesia are crucial in realizing a sustainable landscape. South Tapanuli District was chosen for this study due to their high conservation value and the possession of a Sustainable Palm Oil Action Plan that is internalized in the Regional Plan document. The analysis was conducted descr...

Palm oil is one of the most demanded commodities globally, which has led to a significant increase in its production and raised issues regarding its environmental impact. However, many of these issues are not based on substantial evidence. To provide a proportional picture on the oil palm industry, Universitas Sumatera Utara (USU), the University o...

Ganoderma boninense is the most severe pathogen of Elaeis guineensis in Sumatra and Sulawesi, Indonesia, owing to the fact that it causes upper or basal stem rot disease. This study aimed to determine the genetic diversity, sequence and bioinformatics of E. guineensis, Borassus flabellifer, Hevea brasiliensis and Cocos nucifera. As many as 49 indiv...

Purba A, Hayati R, Putri LAP, Chalil D, Afandi D, Syahputra I, Basyuni M. 2020. Genetic diversity and structure of Ganoderma boninense isolates from oil palm and other plantation crops. Biodiversitas 21: 451-456. Oil palm is an economically important plant, which one of the most important sources of vegetable oil in the world. However, oil palm pla...

Oil palm smallholders have rapidly grown but their performance is relatively low compared to other producer groups. One of the programs that are expected to address this is certification. However, only a small percentage of smallholders received the certification in practice. This study was conducted to analyze the effectiveness of certification to...

In Indonesia, oil palm plantations have long affected income levels positively. Furthermore, Indonesia has developed oil palm smallholdings in 1980 to improve rural incomes. The success of this program has attracted other farmers and migrants to further developed oil palm plantations. Those who collaborated with companies were known as scheme small...

Sustainable palm oil certification is expected to lead to sustainable development and livelihood. This expectation is tested through 240 and 176 smallholders in Indonesia and Malaysia, respectively. The results show that certified smallholders have better perception and implementation of environment, economic and social aspects, enjoy higher produc...

Sustainable palm oil certification is expected to lead to sustainable development and livelihood. This study was conductedthrough 240 and 176 certified and non-certified oil palm smallholders in Indonesia and Malaysia, respectively. The data were collected using theclustered convenience sampling method and analyzed with compare means test. The resu...

Method of CTAB (cetyltrimethylethylammoniumbromide) is prevalent for low-cost DNA extraction with many published variations for other plants and tissues, including fungi Ganoderma. The quantity of DNA extracts from the Ganoderma spfungus from a coconut tree and rubber treewith concentrationextraction efficiency and the quality of purity wholeness v...

Ganoderma boninense now becomes a trending topic to researchers, and it spreads through the roots and usually the oil palm tree will basal stem rot cause harm the plantation. The National Center for Biotechnology Information (NCBI) online available overall suite of online resources can be accessed for biological information the data, including the...

Basal Stem Rot (BSR) is a prevalent oil palm disease caused by Ganoderma fungus. Many oil palm plantations suffered losses due to BSR disease, which caused deaths of oil palm crops. Ganoderma has host plants from the Palmae family such as oil palm, coconut, Nipah, aren, areca nut, papyrus, and also can be found in Industrial Plantation Forest (HTI)...

The current report examines the bioinformatics approaches to analyse 13 predicted Ganodermaboninense genes from Elaeis guineensisJacq. along with predicted the assembly, pattern, potential transit peptide, and subcellular localisation. The length of the genes was varied with the genes examined, from 209 to 222 bp. It is noteworthy the physicochemic...

Even though led to minor components, Elaeis guineensis is well known to contain vitamin E, carotenoids, fatty acid, triterpenoid, and phytosterols. Recently the occurrence and pattern of long-chain polyisoprenoids from oil palm has been reported. The current study assesses the bioinformatics approaches to assay four probably polyprenol reductase ge...

Oil palm plantation is well known as a profitable business. In general, oil palm smallholders have a higher income than farmers of other commodities. However, most smallholdings have land sizes that do not reach the economic scale. Together with the lack of managerial skills, smallholdings are likely to be more vulnerable to production and price fl...

The significant increase in oil palm areas has resulted in more concerns to the environmental issues - as majority of farming activities were not conducted in sustainable ways. To address the environmental issues, the Roundtable Sustainable Palm Oil (RSPO) organization has formulated principles and criterias (PnC) for sustainable practices of the o...

Afandi D, Basyuni M, Putri LAP, Chalil D, Syahputra I. 2019. Expression of oil palm (Elaeis guineensis) polyisoprenoids in response to Ganoderma boninense infection. Biodiversitas 20: 68-76. Currently, oil palm is an important economic crop and has become one of the world's major vegetable oils as well as a potential source of biodiesel. Unfortunat...

Currently, oil palm is an important economic crop and has become one of the world's major vegetable oils as well as a potential source of biodiesel. Unfortunately, oil palm plantations in Asia, particularly in Indonesia and Malaysia face the threat of basal stem root diseases caused by Ganoderma sp. Various methods and approaches have been made to...

Talenta is not the talent, but it has been declared the abbreviation of: Tropical science and medicine, Agroindustry, Local wisdom, Energy, Natural resources, Technology and Arts. They directly involve science, technology and arts, and so it becomes a talent. However, there is no specific explanation so that science, technology and art to focus on...

Oil palm plantations in Asia, particularly in Indonesia and Malaysia face the threat of basal stem root diseases caused by Ganoderma sp. Various methods and approaches have been made to select the oil palm tolerant to Ganoderma, among others with genes selection. The purpose of this research is to analyze the molecular performance of some oil palm...

With high consumption and low production rates, Pakistan appears as one of the main palm oil importers in the world. Among all vegetable oils, palm oil price appears to be the lowest, thus dominating the vegetable oil import market. Indonesia and Malaysia are the two main exporters, in which Pakistan alternately imports palm oil. Within such condit...

Climate change is one of serious threats to the agricultural sector. In North Sumatra Province, climate change is characterized by shorter rainy season with higher rainfall. To overcome such climate change, it is necessary to provide irrigation that can accommodate excessive rain water and distribute it in times of shortage. Therefore, changes in r...

This study was conducted to analyze internal and external factors in increasing Barangan Banana production in Kabupaten Deli Serdang. Samples were determined by snowball sampling technique and purposive sampling method. Using SWOT analysis method, this study found that there were 6 internal strategic factors and 9 external strategic factors. Among...

Sustainable palm oil has been widely debated. Consuming countries insist certified sustainable produces palm oil, but in fact the absorption of the certified palm oil is still less than 60%. This raise questions about the sustainable palm oil demand. In this study, such a condition will be analysed in French-Indonesia supply chain case. Using month...

In 2018, around 4 million ha of oil palm smallholdings need to be replanted. Indonesia could utilize this moment to improve smallholdings’ productivity by ensuring the usage of good quality seeds. For the industry, Dura is considered as bad seeds as its thick shells can damage the machine and the oil content is low. Therefore, most mills do not wan...

Rice is the staple food grain for Indonesians. With the increasing population, Indonesia has tried to improve its rice production by using high yielding varieties (HYV) and more chemical fertilizers and pesticides. Initially the program was quite successful, but later production began to stagnate with subsequent environmental and health issues. As...

Crude Palm Oil (CPO) is the biggest consumed vegetable oil in the world. The increase in CPO production raises concern on the environmental impact even outside the producing countries. As a response to this matter, the EU has made a requirement to only import certified CPO (CSPO). India and China, the two biggest importers in the world, are less re...

Rice is the staple food grain for Indonesians. With the increasing population, Indonesia has tried to improve its rice production by using high yielding varieties (HYV) and more chemical fertilizers and pesticides. Initially the program was quite successful, but later production began to stagnate with subsequent environmental and health issues. As...

The significant increase in oil palm areas has led to concerns about the sustainability of the associated farming practices. To address these issues, the Roundtable Sustainable Palm Oil (RSPO) organization formulated principles and criteria (P&C) for sustainable practices for members of the oil palm industry. Initially, only big companies applied f...

Cooking oil is known as an essential commodity in Indonesia. Having such an important role, the Indonesian government often interfered the cooking oil market to assure its price remain low. To do so, the government uses a subsidy policy as one of its instruments. A dynamic duopoly model is applied to evaluate the impact of subsidies given the struc...

Since it was first established as a large-scale operation in 1911, the Indonesian palm oil industry has undergone a number of structural changes. There have been allegations that some of these changes have led to a significant market power exertion in this industry. However, empirical evidence to support the allegation appears lacking. This paper s...

The objective of this study is to investigate the direct and indirect impact of marquisa agribusiness on North Sumatra economic sectors, its income effect, its backward and forward linkages to other sectors and its contribution to the Gross Regional Domestic Product (GRDP) of North Sumatra. The reason to choose it as the topic of this study is that...