Scientific Names Research Articles

An Inventory of Medicinal and Poisonous Plants of the National Veterinary Research Institute Vom, Plateau State, Nigeria

Traditional medicinal plants are still commonly used for primary healthcare in developing countries, and this study seeks to identify the types of medicinal plants present in our community and document the knowledge of poisonous plants. The study area was divided into four blocks, and the plants within each block were identified through a field survey using Android phones equipped with Google lens and GPS. Local and scientific names of the medicinal plants were identified using photographs, herbaria, and references. The study found a total of 98 medicinal plant species belonging to 41 plant families, with Fabaceae, Euphorbiaceae, and Lamiaceae families having the highest number of species. This study is significant for conserving traditional medicinal plants and adding to the inventory of medicinal plants in the area for conservation purposes. Furthermore, it is essential for public health and safety, as proper identification of medicinal plants is crucial to avoid poisoning

Sinomenine ameliorates fibroblast-like synoviocytes dysfunction by promoting phosphorylation and nuclear translocation of CRMP2

Ethnopharmacological relevanceRheumatoid arthritis (RA) is a chronic autoimmune disease characterized by synovial inflammation and arthritic pain. Sinomenine (SIN), derived from the rhizome of Chinese medical herb Qing Teng (scientific name: Sinomenium acutum (Thunb.) Rehd. Et Wils), has a longstanding use in Chinese traditional medicine for treating rheumatoid arthritis. It has been shown to possess anti-inflammatory, analgesic, and immunosuppressive effects with minimal side-effects clinically. However, the mechanisms governing its effects in treatment of joint pathology, especially on fibroblast-like synoviocytes (FLSs) dysfunction, and arthritic pain remains unclear. AimThis study aimed to investigate the effect and underlying mechanism of SIN on arthritic joint inflammation and joint FLSs dysfunctions. Materials and methodsCollagen-induced arthritis (CIA) was induced in rats and the therapeutic effects of SIN on joint pathology were evaluated histopathologically. Next, we conducted a series of experiments using LPS-induced FLSs, which were divided into five groups (Naïve, LPS, SIN 10, 20, 50 μg/ml). The expression of inflammatory factors was measured by qPCR and ELISA. The invasive ability of cells was detected by modified Transwell assay and qPCR. Transwell migration and cell scratch assays were used to assess the migration ability of cells. The distribution and content of relevant proteins were observed by immunofluorescence and laser confocal microscopy, as well as Western Blot and qPCR. FLSs were transfected with plasmids (CRMP2 T514A/D) to directly modulate the post-translational modification of CRMP2 protein and downstream effects on FLSs function was monitored. ResultsSIN alleviated joint inflammation in rats with CIA, as evidenced by improvement of synovial hyperplasia, inflammatory cell infiltration and cartilage damage, as well as inhibition of pro-inflammatory cytokines release from FLSs induced by LPS. In vitro studies revealed a concentration-dependent suppression of SIN on the invasion and migration of FLSs induced by LPS. In addition, SIN downregulated the expression of cellular CRMP2 that was induced by LPS in FLSs, but increased its phosphorylation at residue T514. Moreover, regulation of pCRMP2 T514 by plasmids transfection (CRMP2 T514A/D) significantly influenced the migration and invasion of FLSs. Finally, SIN promoted nuclear translocation of pCRMP2 T514 in FLSs. ConclusionsSIN may exert its anti-inflammatory and analgesic effects by modulating CRMP2 T514 phosphorylation and its nuclear translocation of FLSs, inhibiting pro-inflammatory cytokine release, and suppressing abnormal invasion and migration. Phosphorylation of CRMP2 at the T514 site in FLSs may present a new therapeutic target for treating inflammatory joint's destruction and arthritic pain in RA.

Examining the Role of Scientific Authority of Sports Management Journals in the Sports Policy-Making Process: Impact Analysis and Strategies

The objective of this study is to examine the role of the scientific authority of sports management journals in the sports policy-making process in Iran. The study aims to identify the impact of reputable academic journals on sports policy, the challenges and obstacles in the communication between these journals and policymakers, and to propose strategies to improve the policy-making process. This research was conducted using a descriptive-analytical approach with a literature review methodology. Data were collected through the examination of credible scientific sources, articles published in national and international journals, and analysis of related research findings. The study aimed to explore the role of scientific authority in sports policy-making in Iran by analyzing content and reviewing relevant literature. The findings indicate that reputable scientific journals can significantly influence sports policy-making. However, in Iran, several barriers, including ineffective communication between scientific journals and policymakers, cultural and managerial obstacles, and insufficient use of scientific knowledge in policy formulation, have reduced the impact of these journals. The results also show that strengthening the interaction between universities and governmental bodies, developing scientific networks, and enhancing international collaborations can help improve the sports policy-making process in Iran. The scientific authority of sports management journals plays a crucial role in enhancing the quality and efficiency of sports policy-making in Iran. However, to better utilize these academic resources, existing barriers must be addressed, and communication between researchers and policymakers must be strengthened. It is recommended that further research be conducted on the challenges of sports policy-making in Iran to provide suitable strategies for improving these processes.

An ethnobotanical investigation of medicinal and aromatic plants used in Al Hoceima National Park

In the northern region of Morocco, specifically in the Province of Al Hoceima, the establishment of the Al Hoceima National Park (ANP) serves as a designated protected area. The primary purpose of this park is to promote the conservation, protection, and sustainable development of the diverse natural resources present. The ANP boasts a significant variety of flora, particularly medicinal and aromatic plants (AMP). This research aimed to identify and highlight the AMP the local rural population utilizes. Conducted between August 2020 and March 2021, an ethnobotanical survey engaged herbalists, traditional healers, and rural residents through structured questionnaires. These surveys elicited specific information about the informants and details regarding the plants in use. This survey revealed the identification of 47 taxa based on vernacular names, which were subsequently matched with their scientific names according to available literature. These taxa are distributed among 29 botanical families, with notable prevalence in Lamiaceae, comprising 8 species, followed by Asteraceae, Fabaceae, Rosaceae, and Solanaceae, each with 3 species. The study further indicates that the most utilized parts of these plants are the foliage and leafy stems, with decoctions being the predominant method of preparation for remedies. The investigation into the diseases treated revealed that digestive infections rank highest, followed by respiratory infections. Sociodemographic characteristics analysis indicated a slightly higher usage of medicinal plants by women than men. The insights gleaned from this research offer valuable information for the studied region and contribute to the broader understanding of the national medicinal flora.

Antiasthmatic Medicinal Plants of Tanzania: An Ethnomedicinal and Ethnopharmacological Review.

Traditional medicinal plants (TMPs) are a significant part of people's quality of life, offering a natural substitute for modern drugs with numerous side effects. In Tanzania, data on antiasthmatic TMPs are highly fragmented. This review, a comprehensive compilation of ethnobotanical research evidence, aimed to provide a thorough understanding of TMPs used by the locals for asthma management and identify species that have already been investigated in preclinical studies. The review was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. To gather relevant literature on antiasthmatic TMPs used by Tanzanians, a web search using electronic databases (Scopus, PubMed, ProQuest, Academic Library, Web of Science, SciFinder, Wiley Online Library, Google Scholar, ScienceDirect, and African Journals Online) was conducted. The scientific names were verified through the Plants of the World Online database, and the collected information was analysed for descriptive statistics using Microsoft Excel software. The ethnomedicinal information was obtained from 24 different articles. Microsoft Excel software was used to analyse the data using descriptive statistics. A total of 62 TMPs belonging to 33 families were identified. Species of the Fabaceae (14.5%) and Rubiaceae families (8.1%) are the most utilized. The analysis revealed that trees (42.0%) and leaves (40.0%) are the most utilized life forms and plant parts, respectively. Most plant materials (59.7%) used to make remedies were collected from the wild environment. Decoction (55.0%) is the dominant preparation method of remedies, and the majority (69.0%) were orally administered. Of the recorded TMPs, 22.6% had their in vivo antiasthmatic activity reported in the literature. The review also highlighted the strategic significance of preparations of remedies made from TMPs for discovering and developing new antiasthmatic drugs. However, the need to identify the molecular targets of action and toxicological aspects of the TMPs should be considered.

A taxonomic backbone for the Plumbaginaceae (Caryophyllales).

A taxonomic backbone of the Plumbaginaceae is presented and the current state of knowledge on phylogenetic relationships and taxon limits is reviewed as a basis for the accepted taxon concepts. In total, 4,476 scientific names and designations are treated of which 30 are not in the family Plumbaginaceae. The Plumbaginaceae are subdivided in three tribes with 26 genera and 1,179 accepted species. Two subgenera, 17 sections, two subsections and 187 infraspecific taxa are accepted. At the species and infraspecific level 2,782 synonyms were assigned to accepted taxa, whereas 194 names were excluded from the core checklist (i.e., unplaced taxa, infrageneric subdivisions with still uncertain application, names of verified uncertain application, invalid horticultural names, excluded names from other families, other excluded designations, and unresolved names). The EDIT Platform for Cybertaxonomy was utilized as the tool to compile and manage the names and further taxonomic data under explicit taxon concepts. Secundum references are given in case taxon concepts were taken from the literature, whereas this study serves as reference for newly circumscribed taxa. The family's division into the tribes Aegialitideae, Limonieae, and Plumbagineae departs from earlier two-subfamily classifications, prompted by recent phylogenetic findings that challenge the subfamilial affinity of Aegialitis. The genus Acantholimon was extended to include Gladiolimon, as currently available phylogenetic and morphological data support this merger. In Limonium, all accepted species could be assigned to sections and subsections or the "Mediterranean lineage", respectively, making use of the phylogenetic distribution of their morphological characters and states. A new combination and/or status is proposed for Dyerophytumsocotranum, Limoniumthymoides, Limonium×fraternum, Limonium×rossmaessleri, and Limoniumsect.Jovibarba. Special attention is given to nomenclatural issues, particularly for Staticenomenambiguum to resolve the names under accepted names. The use of artificial groupings like "aggregates", "complexes" and "species groups" in alpha-taxonomic treatments is discussed. The taxonomic backbone will receive continued updates and through the Caryophyllales Taxonomic Expert Network, it contributes the treatment of the Plumbaginaceae for the World Flora Online.

Estudos anatômicos, cariotípicos e de conteúdo de DNA nuclear em quatro morfotipos de alface silvestre

ABSTRACT Wild lettuce (Lactuca aff. canadensis L.), belonging to the Asteraceae family, occurs subspontaneously in Brazil and may originate from Africa, Asia, Europe and North America. Popularly known as Canada lettuce, it is an unconventional leafy vegetable. Studies on this species are scarce in Brazil, and its scientific name is debated among experts. It has high morphological variability and controversial botanical classification. This study characterized the stomata, organized the karyotype, and determined the nuclear DNA content of four morphotypes of wild lettuce to facilitate correct classification. The genetic material used was acquired from the non-conventional vegetable germplasm in UFLA. The leaves of wild lettuce morphotypes are hypoamphiestomatic with a greater number of stomata in the abaxial epidermis. There were similarities between the morphotypes (green and purple) and between the smooth purple types (narrow leaf and broad leaf) for the number and size of stomata. No variation was found in the number of chromosomes (2n = 18) or DNA content among the four morphotypes. The separation of the morphotypes of wild lettuce did not match the morphological classification or the karyological data. The four morphotypes evaluated were placed under the same species, and the results obtained when compared to other studies led us to infer that the four morphotypes of wild Lactuca belonged to the species L. indica and not L. canadensis as previously assumed. Further investigation may provide insights into the evolutionary history of this species.

Why is Milton ‘Milto’? Giovanni Salzilli, John Milton, and Aelian

In 1638 the Italian scholar Giovanni Salzilli sent the young John Milton who had recently arrived in Italy a short Latin poem in which Salzilli addressed Milton as ‘Milto.’ He did not use the more commonly found form of Milton’s Latin name, Miltonus and Miltonius. Using archival and print materials as evidence this paper examines this apparent hapax legomenon and suggests that its source can be found in Aelian’s Varia Historia.

Stanley Milgram’s Obedience Studies: A Critical Review of the Most Influential Explanatory Accounts

In 1960 Stanley Milgram wondered if ordinary people would, as many Germans did during the Holocaust, obey higher orders to harm innocent people. Soon after, he ran the New Baseline experiment: at the behest of a scientific authority, 65 percent of subjects inflicted what appeared to be potentially lethal shocks on another person with a mild heart condition. Although, to date, there is no widely accepted explanation that can account for this finding, three theories continue to attract a disproportionate amount of attention: the Incredulity Hypothesis, Agentic State, and Engaged Followership. The aim of this paper is to present an overview of how Milgram invented his basic procedure and then use the insights gained from his journey of discovery as a foundation from which to critically review these three explanatory accounts. Succeeding this critical review, a lesser well-known theory will be presented; one that is supported by Milgram’s original results.

Una lista comentada de virus de plantas descritos en Paraguay (1920–2023)

Abstract Despite an economy based mostly on agriculture, literature on viral diseases of plants is scarce in Paraguay. Only recently, researches on plant viruses took an impulse resulting in a precise identification of many of them affecting plants either cultivated or not. To provide reliable information regarding plant viruses present in Paraguay, an annotated list of them was prepared, covering descriptions from 1920 to present day. There have been some important outbreaks with severe yield losses in crops as cucurbits, citrus, sesame, bean, maize, peanuts and tomato. Many of older descriptions are included for their historical significance, but most identifications made require confirmation. On the other hand, recent descriptions have been completed, based on several assays, especially molecular characterization. This list is organized alphabetically following scientific names of the plant species found naturally infected by viruses, with comments about symptoms, geographical distribution, incidence, identification procedures, and other information, with due literature references. It is based on a compilation of publications made on plant virus diseases in Paraguay. Described virus species, in a total of 38 recognized by ICTV, belonging to 17 different genera (Alphaendornavirus, Ampelovirus, Begomovirus, Benyvirus, Carlavirus, Cilevirus, Closterovirus, Comovirus, Cucumovirus, Dichorhavirus, Fabavirus, Luteovirus, Ophiovirus, Orthotospovirus, Potexvirus, Potyvirus and Tobamovirus), besides two unclassified, and four unidentified. There is also a case of viroid described in Citrus spp. Infections caused by potyviruses are the most numerous. These viruses were described in more than 40 plant species, belonging to 18 botanical families. Because of crop diversity and richness in native flora, many more viruses must be present in Paraguay, which future works will certainly reveal, especially with the increase in manpower involving researches, especially cooperative with foreign centers, on plant viruses, which has been very limited until now. Also, knowledge on existing viruses may have relevance in understanding their epidemiology and provide the basis for their control strategies and quarantine measures, to avoid new variants of existing viruses or new viruses being introduced.

Spirulina, a marine plant? A response to Ochoa and Moyano. Spirulina applications - marine plant: panoramic review

In response to the article “Spirulina applications - marine plant: panoramic review” by Ochoa and Moyano (2022), we would like to point that the word "plant" in the title of the article (since it is a Cyanobacterium or, in more general terms, an alga) might not be appropriate. Additionally, we would like to suggest some formatting observations regarding the nomenclature (italics are not used) and an update on the scientific name of Spirulina (genus Limnospira)

Two surgical instruments.

The only instruments for opening the cranium considered in this chapter are drills, and in some cases facilitated with a special chisel called a lenticular. There were two kinds of trepan. The modiolus was the Latin name for a crown trepan which had a circular base with teeth which sawed a hole. Then there were the non-penetrating trepans which had a bit shaped to prevent unwanted penetration. They made small openings which could be joined by chisels to remove altogether larger areas of bone than were accessible to modioli. They were the favored instrument from the ancient world up to the Renaissance. At the beginning of the Renaissance, there was a move toward greater use of crown trepans and various methods were applied to stop them sinking too far inward. These included wings in the outer wall and changing the shape of the bit from cylindrical to conic. In time preferences returned to the cylindrical shape and larger diameters. There was also two instruments called lenticulars, the illustrations of which have been confused in the literature. It is now clear that the Roman instrument was shaped to cut the cranium and minimize the need for trepanation. The Renaissance instrument had a different shape and was used to smooth rough bone edges and excise spicules penetrating the meninges. They were simply two different instruments to which the same name was applied.

Etnoictiología de los grupos étnicos Piapoco, Piaroa, Puinave y Sikuani que habitan La Selva de Matavén (Vichada, Colombia)

ABSTRACT Since prehistoric times, indigenous communities have relied on fish as a staple source of protein for their subsistence. In most cases, fish is the sole source of income and of animal protein for the communities. Nevertheless, the documentation of fish from an ethnological perspective is rare, and biological research alone might not provide sufficient information required to manage fisheries resources. We discuss the traditional ichthyological knowledge of the Piapoco, Piaroa, Puinave, and Sikuani ethnic groups inhabiting the Matavén Forest (Vichada, Colombia). Each group has its perception regarding knowledge, at times detailed, of fish groups, their distribution, and uses. To obtain information regarding traditional ichthyological knowledge, fish were collected over one month at 31 sampling sites in different habitats along the lower Matavén River basin. The fish were identified by formal taxonomy and the informal classification by experienced fishermen of the four ethnic groups. There was consistency among the names given by the ethnic groups and formal taxonomy. The indigenous collaborators used binomial classification systems in which the organisms are grouped at family and genus levels and, to some extent, categorization depends on distribution within the aquatic habitats (i.e., rivers, streams and lagoons). The indigenous collaborators did not provide sociocultural or mythological information related to the fishes. Our findings contribute to the development of conservation and rural development projects in the Colombian Amazon.

Alien Language: Reflections on the Rhetoric of Invasion Biology

Communicating about invasive species is a complicated task, and word choice matters. Along with technical terms, metaphors and illustrative language fundamentally underpin effective science communication. The figurative language we use to discuss invasive species can be as important as the technical jargon—in many ways, it shapes stakeholder perceptions as much as scientific fact. Species naming conventions are likewise complex. Some species’ common names reinforce xenophobic concepts or contain racial slurs, complicating attempts at diverse, equitable, and inclusive science communication. Despite these issues, there have been limited national efforts to develop better, more inclusive guidelines for invasive species communication. In this article, we introduce ongoing developments in the rhetoric surrounding invasive species—and how Sea Grant can help change language and public opinion when communicating about biological invasions.

Evaluation of Street Tree Inventories in a neighborhood in Rio Claro/SP - Brazil

Street trees impact the quality of life of human populations, providing aesthetic, social, ecological, and environmental benefits. Knowing and identifying urban tree species is important for good planning and management. The objective of this study was to assess street trees in the residential neighborhood Jardim das Palmeiras, in Rio Claro, SP, Brazil, through a quantitative and qualitative inventory. The following parameters were considered: scientific name, botanical family, common name, origin, typology, physiological condition, phytosanitary condition, location of the tree component on the sidewalk, permeable area, sidewalk condition, sidewalk survey, and interference with the power grid. Data on the species were also compared for the years 2011 and 2022. A total of 618 individuals were found, of which 588 could be identified by family and species. Murraya paniculata represented 27.7% of the total, and the Rutaceae family was most prominent, with 163 individuals. The inventory showed that 43% were shrubs/herbaceous, 76.94% were adult individuals, and 89.5% had a healthy phytosanitary condition. Due to the large number of shrubs, the percentage of conflicts with the power grid and the like was not significant. Although 58.8% of the sidewalk area was classified as poor for the species, that did not show correlation with the sidewalk survey. Comparison of the years 2011 and 2022 revealed a decline of 82 individuals. The street trees in the residential neighborhood Jardim das Palmeiras had low variability in family classification, irregular species frequency, and excessive planting of a single species, which is not recommended.

Assessment of traditional ethnomedicinal plants species in Coimbatore region – a short review

Since ancient times, medicinal plants have been widely employed worldwide to treat medical conditions in humans. Knowledge of ethnobotany can provide a great deal of information about plants and their traditional uses. This study discusses the ethnobotanical survey of plants undertaken in the Coimbatore district. For this study, information on plants was gathered, including their scientific name, family name, habit, parts used and medicinal characteristics. 402 plant species from 93 families and 282 genera were studied during the review. Euphorbiaceae and Fabaceae are the families with the most species, each having twenty. Asclepdiaceae is next with seventeen species, followed by Poaceae and Leguminaceae with sixteen each, Asteraceae with fourteen species and Rubiaceae with thirteen species. With 140 species, herbs constitute the largest portion of the habit, followed by shrubs (111 species), trees (98 species) and climbers (50 species), in that order. For sustainable development, it is crucial to record traditional knowledge. It also makes it easier for researchers to obtain plant samples for additional study. Adopting appropriate conservation tactics, including managed grazing and community replanting, can support the long-term usage of medicinal plants.

ENHANCED PEST INFORMATICS SYSTEM

Pest Management System (PMS) is a computer application in Integrated Pest Management. The term encompasses computer-based storage, retrieval, sharing, and optimal use of pest management data, information, and knowledge for problem solving and decision-making. The pest control industry is continuously experiencing novel technologies and products that will improve the way to manage and prevent pests. The development of an intensive electronic crop pest informatics is highly essential to help bridge these gaps. The aim of this research is to design and develop a voice enhanced Pest Informatics System(PIS). Pest Informatics System was designed and implemented using VModel an extension of the Waterfall model, which offers a means of making the development process more feasible. The tools used for the development of the voice enhanced web-based pest management system are PHP/Laravel, Java Script, HTML and CSS. Result shows that PIS consists of over one hundred pests with their scientific names, descriptions and control measures. It is voice enhanced, therefore can assist visually impaired individuals and aid decision support on farm through listening and not necessarily reading. It is web based which makes it easily accessible, compact, educative and enhance decision making. Conclusively, The need to deliver a first hand information to farmers as at when due is critical to good yield. Access to compact information about pests is of great significance to farmers. Enhanced pest informatics system is a smart tool that creates mobile extension services to farmers using a stress free and friendly approach. User’s evaluation result confirmed that the tool is flexible, user friendly, reliable, efficient and robust.

2017–2020年广东南岭典型植被类型木本植物物种组成数据集

Plant species composition is a vital indicator for studying the structure and functioning of forest ecosystems. It constitutes an important component of the China Ecosystem Research Network (CERN) and the long-term monitoring of terrestrial ecosystem biological elements. It can be utilized to assess and monitor biodiversity levels, environmental changes, and ecosystem responses. It holds utmost significance for natural resource management and land-use planning, providing crucial foundations for scientific research, policy-making, and ecological conservation. Nanling, as a significant ecological barrier in China, harbors the largest area of forests at the same latitude. It encompasses various vegetation types, including subtropical evergreen broad-leaved forests, subtropical mixed coniferous and broad-leaved forests, and subtropical dwarf evergreen broad-leaved forests. Following the monitoring specifications for terrestrial ecosystem biological elements, this paper presents the original data of all woody plant individuals with a diameter at breast height (DBH) ≥ 1 cm, including their species names, DBH, height, and other relevant information. These data were obtained through two consecutive census surveys conducted by the Guangdong Nanling Forest Ecosystem National Field Scientific Observation Research Station from 2017 to 2020. After meticulous data organization, quality control, and evaluation, the dataset provides detailed information on typical forest communities in Nanling, including plot numbers, vegetation types, species names, Latin names, abundance, relative abundance, relative dominance, relative frequency, importance value, and year of survey. This dataset serves as local data for in-depth investigation into biodiversity, community structure, and functions of forest communities in Nanling. Moreover, it aims to provide fundamental support for forest management, environmental protection, natural resource management, and sustainable development in the region.

Complications of arterial hypertension

Complications of arterial hypertension (AH), beginning to show a direct relationship with the level of blood pressure 145/95 mm Hg. Art., for many decades are the leading cause of death among all causes of death. Arterial hypertension, without a doubt, is the leading medical and social problem of our time, the role of which in mortality and disability of people continues to grow, despite the great attention paid to this problem by the scientific community, practitioners and authorities. Against the backdrop of growing knowledge and progress in the field of pharmacology and therapy of hypertension, the frequency of achieving target blood pressure today in the United States and European countries has stabilized by 25-34%, in Russia in the 1990s. was - in men 5.7%, in women - 17.5%, decreasing with age[2]. According to the National Guidelines for the Prevention, Diagnosis and Treatment of Arterial Hypertension (draft) in Russia in 2006, this indicator slightly improved (21.5%)[2, 4]. Apparently, it is within these limits that one can speak of the limit of population possibilities of the unconditionally dominant drug therapy of hypertensive conditions today.

Determination of physical properties of siamese oranges (Citrus nobilis var. Microcarpa): sphericity, roundness, volume, and density

Siamese oranges are a member of the tangerines which have the scientific name Citrus nobilis var.Microcarpa. It is called Siamese orange because it comes from Siam (Muangthai). The quality of Siamese oranges is determined by their physical properties. These physical properties include size, weight, volume and diameter. Post-harvest technology for Siamese oranges can be done by grading to obtain quality Siamese oranges according to standards. This research aims to determine the physical properties of Siamese oranges used in the grading process. Determination of sphericity and roundness is measured using a caliper. Determination of volume and density is measured using a beaker. Analysis of research data used a one-way z-test normal distribution to the left. The results of data analysis show that the z-count value of roundness, roundness, volume and density is 1.05; 0.79; 0.55; 0.53 and -ztable of -1.645. This means zcount ≥ -ztable, where the average value of the physical properties of Siamese oranges is greater than or equal to the research object, roundness is 0.92, roundness is 0.93, volume is 87 cm3 and density is 1.02 g/ cm3. Thus, the results of these physical properties can be used as a reference when grading Siamese oranges code size 2.