Dominant Color Research Articles

Identification of a candidate gene for the I locus determining the dominant white bulb color in onion (Allium cepa L.).

Through a map-based cloning approach, a gene coding for an R2R3-MYB transcription factor was identified as a causal gene for the I locus controlling the dominant white bulb color in onion. White bulb colors in onion (Allium cepa L.) are determined by either the C or I loci. The causal gene for the C locus was previously isolated, but the gene responsible for the I locus has not been identified yet. To identify candidate genes for the I locus, an approximately 7-Mb genomic DNA region harboring the I locus was obtained from onion and bunching onion (A. fistulosum) whole genome sequences using two tightly linked molecular markers. Within this interval, the AcMYB1 gene, known as a positive regulator of anthocyanin production, was identified. No polymorphic sequences were found between white and red AcMYB1 alleles in the 4,860-bp full-length genomic DNA sequences. However, a 4,838-bp LTR-retrotransposon was identified in the white allele, in the 79-bp upstream coding region from the stop codon. The insertion of this LTR-retrotransposon created a premature stop codon, resulting in the replacement of 26 amino acids with seven different residues. A molecular marker was developed based on the insertion of this LTR-retrotransposon to genotype the I locus. A perfect linkage between bulb color phenotypes and marker genotypes was observed among 5,303 individuals of segregating populations. The transcription of AcMYB1 appeared to be normal in both red and white onions, but the transcription of CHS-A, which encodes chalcone synthase and is involved in the first step of the anthocyanin biosynthesis pathway, was inactivated in the white onions. Taken together, an aberrant AcMYB1 protein produced from the mutant allele might be responsible for the dominant white bulb color in onions.

Shadow Detection in Remote Sensing Images Based on Spectral Radiance Separability Enhancement.

Shadow detection is a basic task of remote sensing image analysis, but it is often seriously disturbed by vegetation, water bodies, and black objects. It is observed that vegetation and dark objects often show a dark look in visible bands but brighter in the near-infrared (NIR), and is also noticed that the reflection of inland water bodies in the green band is stronger than that in the blue band. Taking advantage of these physical properties and combining them with the bluish and dark appearance of shadows, we propose a simple but effective shadow detection method for multispectral remote sensing images. These physical properties are used to create transformation models that suppress features such as vegetation, water bodies, etc., but at the same time enhance shadows. Then, we transform the shadow representation into a color space to generate candidate shadows using dominant color components. To separate shadows from the others, we propose two indexes, the normalized Color Difference Composite Index (CDCI) and Color Purity Index (CPI), and fuse them to achieve shadows and their confidence. The experimental results indicate that the proposed method can effectively detect the shadows in multispectral images and outperforms the state-of-the-art approaches.

Social4Fashion: An intelligent expert system for forecasting fashion trends from social media contents

The fashion field is continually expanding and evolving, and social media play a significant role in shaping current fashion trends through the influence of online personalities, such as influencers. As a result, fashion designers often turn to social media to gain insights into the latest trends and draw inspiration, while in the past they used to physically visit fashion districts. To automate and speed up this process, an expert system is much needed; thus, Social4Fashion has been created, an end-to-end framework that leverages deep learning-based techniques in order to support creatives in their research and decision-making process, with the final goal of analyzing and predicting trends. This system employs several steps, starting with the automatic data collection from Instagram, using hashtags provided by domain experts. Next, retrieved images are filtered to remove non-fashion related pictures, leaving only those pertaining to the fashion area for further processing. Then, to obtain more specific information about the images, the handbags present (if any) are detected and classified, based on their type; finally, dominant colors of the handbags are retrieved through clustering on the images. All the data collected with this system are then stored and analyzed via user-friendly dashboards, created with the objective of highlighting relevant information, in order to perform analysis on current and future fashion trends. Results show the effectiveness of the proposed system, with an accuracy of 97% (95% confidence interval 0.95–1) for the fashion image classification and a mAP of 0.77 (95% confidence interval 0.73–0.82) for the handbag detection, which makes it suitable for fashion domain analysis. Also, as a result of this work, a novel fashion-related dataset has been made available to the research community. This system can greatly improve the way fashion trends are analyzed, and allow for more efficient and effective design processes in the future.

Visual Communication of Festive Shop Window Displays with Customers

The object of the authors’ research was the festive Christmas window displays of brick-and-mortar retail stores. The main objective of the research was to identify the dominant colours, symbols and signage of Christmas festive displays of retail brick-and-mortar stores across different product categories and countries around the world. A total of 229 retail Christmas window displays, from 14 countries around the world, across 11 assortment categories, ready for the Christmas season in 2020, 2021 and 2022, were examined. The theme of Christmas resonates in retail store windows from the beginning of November until 24 December. After this date, the issue of sales dominates the window displays. The main method of the research was the content analysis used to analyse the documents in order to determine the frequency of occurrence of the pre-given categories. Given that our interpretation of Christmas is based on its Christian foundation, it is not surprising that the main universal colours and symbols of interpretation identified are rooted in Christianity, while other, complementary ones (e.g. Santa Claus with a reindeer sleigh, a snowy landscape, or a gingerbread house) and the signage are the result of changes in popular culture over time.

Spectral analysis of environmental microplastic polyethylene (PE) using average spectra

In this study, microplastic samples from surface seawater of Tokyo Bay were collected, polyethylene (PE) microplastics were used to calculate carbonyl index (CI), and average spectra of PE were analyzed and compared with a previous study applying agitation during chemical treatment. It was found that PE and polypropylene (PP) were the predominant polymer type in the samples. Among PE samples, fragments were the most commonly observed shape, with white being the dominant color. Deviations were found in the average spectra among different shapes and colors when compared to the standard PE spectrum. A comparison of the average spectra between the two datasets suggests that pronounced peaks related to oxidation are most likely resulted from agitation during the chemical treatment. Additionally, it was found a closer spectral resemblance between the sample spectra and the spectrum of standard sample of oxidized PE (PEOx) than with the standard PE spectrum, suggesting that using the oxidized PE as a reference spectrum might be more effective for identification. These findings highlight the complex factors affecting the spectral properties of microplastics and highlight the importance of understanding these variations to enhance the accuracy of microplastic identification workflows and understanding of environmental fate of microplastics.

Uncovering microplastics contamination in canned seafood

There is limited research on the occurrence of microplastics (MPs) in canned seafood. All types of canned seafood investigated in the present study were contaminated. After sample digestion in 30 % hydrogen peroxide, a total of 40 MPs were recovered. Fibers were the most common type, blue was the dominant colour, and Fourier Transform Infrared Spectroscopy (FTIR) identified polyester as the most common polymer. Considering all samples, an average of 3.5 ± 5.2 MPs/can was obtained, with octopus in tomato sauce and tuna in olive oil presenting the highest contamination (5.2 ± 7.5 MPs/can and 5.2 ± 5.1 MPs/can, respectively). Also, significant differences between the number of MPs in the seafood tissues and immersion liquids were verified. The present study demonstrates MPs occurrence in canned seafood, a potential contamination pathway for humans. More research on the different stages of the canning processing is vital for understanding MPs contamination in cans.

Cyto-swapping in maize by haploid induction with a cenh3 mutant.

Maize mutants of the centromeric histone H3 (CENP-A/CENH3) gene can form haploids that inherit only chromosomes of the pollinating parent but the cytoplasm from the female parent. We developed CENH3 haploid inducers carrying a dominant anthocyanin colour marker for efficient haploid identification and harbouring cytoplasmic male sterile cytoplasm, a type of cytoplasm that results in male sterility useful for efficient hybrid seed production. The resulting cytoplasmic male sterility cyto-swapping method provides a faster and cheaper way to convert commercial lines to cytoplasmic male sterile compared to conventional trait introgression.

Occasional words with colorative semantics in the poetry of Igor Severyanin

INTRODUCTION. One of the famous poets of the 20th century is the founder of egofuturism, Igor Severyanin, whose work is distinguished by its outrageousness and tendency to novelty. Igor Severyanin’s colorful vocabulary immerses you in an atmosphere of enigma and mystery. The purpose of the study is to describe and interpret the semantic field of color vocabulary as a special component that forms the specifics of the author’s color vision reflected in the poetic picture of the world by Igor Severyanin. It seems advisable to comprehend corporate occasionalisms in the poet’s lyrics, which is insufficiently represented in the scientific literature.MATERIALS AND METHODS. The method of linguistic description, continuous sampling, the method of the author’s card file is used, methods of classification and systematization of colorative lexemes are used.RESULTS AND DISCUSSION. It is established that the vocabulary with the meaning of color in the work of Igor Severyanin is not episodic, but is one of the characteristic features of his poetics and reflects the author’s worldview, the concept of being and emotional connotations using occasional adjectives.CONCLUSION. The dominant colors (purple and lilac) and the specificity of the meanings of the author’s own characteristics of the color vocabulary, representing the poetic color vision and handwriting of the Russian poet, are revealed; partial color meanings (adjective, noun, verb, adverb), among which complex adjectives occupy a special place. The occasional color lexemes of Igor Severyanin form special semantic fields objectifying the idiosyncrasy of the Russian poet.

K-MEANS AND AGGLOMERATIVE HIERARCHY CLUSTERING ANALYSIS ON THE STAINLESS STEEL CORROSION PROBLEM

Stainless Steel (SS) is a material that is widely used in various fields because it is resistant to corrosion. However, if SS is exposed to heat at high temperatures for a long period of time, a sigma phase, namely the Fe-Cr compound, will form, which indicates that corrosion has begun. The appearance of this corrosion can be detected through color changes on the SS surface, ranging from light brown to dark blue. Corrosion events will be observed through the distribution of color on the sample surface at the location selected through the SS microstructure image. Cluster analysis will be used to group the colors on the surface of the SS sample through the images used. The results of cluster analysis can be used to identify SS color which indicates the appearance of corrosion in the sample. In this research, we will examine the determination of many clusters for K-Means and Agglomerative Hierarchy with Ward's Criterion, Single, Average, and Complete Linkages. In addition, the model quality measure was tested with Silhouette Coeficient. Single linkage gives the worst results because it gives the impression that only one dominant color appears so it can be said that it is unable to distribute each color to the specified cluster. Likewise with Average because the number of clusters cannot be determined with certainty. On the other hand, the K-Means results are similar to Ward's results, this is reasonable because the basic idea of both is to find the minimum distance between each object and its center, in this case the average is used as the measure of the center, while the results that are most similar to the original image are clustering uses complete linkage. These results can be used as recommendations for academics and practitioners in the fields of Statistics, Mathematics and Materials Engineering in the subsequent analysis process to solve SS corrosion problems.

Accumulation, tissue distribution, health hazard of microplastics in a commercially important cat fish, Silonia silondia from a tropical large-scale estuary

The current knowledge regarding the presence of microplastics (MPs) in the digestive tracts of fish, particularly the non-edible parts, provides limited assistance in assessing the risk to human health and establishing guideline values for policy-making purposes. Therefore, we conducted the first investigation into MPs within the commercially significant catfish species S. silondia, form a major tropical estuary assessing their accumulation, characteristics, and associated risks in various tissues, particularly the consumable muscle. A sum of 132 MPs were identified, and the mean abundance of MPs were 7.40 ± 4.12 item/DT, 3.20 ± 1.69 item/gill and 2.60 ± 1.65 item/muscle found in digestive tract (DT), gill and muscle of the fish, respectively. The strong relationships of MPs among three different tissues (y = 0.6069x - 22.69, R2 = 0.7589) indicated the pathways and how MPs were influenced by the physiology of organisms. The prevalence of MPs in fish muscle demonstrated their trophic transmission to humans. Moreover, fishes with higher weight had higher MPs in their gill, and DT. The dominant type, color and size of MPs were fibrous (89.67%), violet (41%) and < 0.5 mm sized (94%), respectively. The high percentage of fibers suggests that they might have come from ropes, fishing nets or sewage. FTIR chemical composition analyses of microplastics (MPs) identified three primary polymer types: PET (44.5%), PE (33.3%), and PP (22.2%) in fish. These polymers are commonly associated with packaging materials, household wastes and plastic pipes. Contamination level assessment by CF (CF = 2.76) and PLI (PLI > 1) indicated moderately to highly contaminated fish with MPs ingestion. While the complete understanding of the direct negative effects of microplastics (MPs) on human health remains elusive, their presence in estuarine fish raises concerns for both human and ecosystem health. The findings will be useful for assessing the hazards to human health from exposure to MPs and for creating effective risk management plans to reduce those risks.

Study on Rachis Characters of Different Cultivars of Banana

Banana is one of the most important staple food around tropics. Bananas can be eaten as green when it is starchy. These crops are the most important components for food security around world by providing income to the farming community through local trade. This experiment was conducted to study the rachis behaviour and male bud characteristics of ABB genomic group and AAB genomic group banana cultivars. Here 5 cultivars under ABB genomic group (Behula, Bara Beglo, Bluggoe, Green Bombay, Pantharaj) and 5 cultivars of AAB genomic group (Dudhsagar, Martaman, Manohar, Desi Malbhog, Kalibhog) were observed. All of these 10 cultivars showed different characteristics in case of male bud, like male bud shape, male bud size, colour of the bract (external face), male bract lifting, wax on the bract, male flower behaviour, compound tepal basic colour, anther colour, stigma colour, ovary shape and dominant colour of male flower, all these were explained in details in this study.

A case report on the use of Ayurveda in the treatment of Iron Deficiency Anaemia

Among pregnant women and young children, nutritional iron deficiency anaemia is a worldwide public health concern and the leading cause of anaemia. Iron deficiency anaemia is often caused by blood loss or mal-absorption. Iron deficiency anaemia and Pandu Roga are very similar clinical entities. Pitta Pradhan Vyadhi is Pandu Roga. The vitiated Doshas in Pandu Roga cause a disruption in tissue metabolism, which results in Dhatu-Shathilya in all of Dhatu. Paleness is the dominant colour across the body. The Rasavaha and Raktavaha Srotasas play a significant role in the development of Pandu. In this case study, we see a 22-year-old female patient with iron deficiency anaemia who, after a month of treatment with Ayurvedic formulations in the Pandu Roga line of treatment and iron-rich dietary supplements, experienced a dramatic improvement in her symptoms (less swelling, no pallor, increased energy, decreased palpitation, and hair loss of 10 strands per day) and an increase in her haemoglobin level (from 8.6g/dl to 12.7g/dl) at a very rapid pace. The Samprapti of Pandu Roga may be broken with the aid of the formulas. Iron deficiency anaemia (Pandu) may be effectively treated with Ayurvedic medication.

Anthropogenic debris in three sympatric seal species of the Western Antarctic Peninsula

Litter pollution is a growing concern, including for Antarctica and the species that inhabit this ecosystem. In this study, we investigated the microplastic contamination in three seal species that inhabit the Western Antarctic Peninsula: crabeater (Lobodon carcinophaga), leopard (Hydrurga leptonyx) and Weddell (Leptonychotes weddellii) seals. Given the worldwide ubiquity of this type of contaminant, including the Southern Ocean, we hypothesized that the three seal species would present anthropogenic debris in their feces. We examined 29 scat samples of crabeater (n = 5), leopard (n = 13) and Weddell (n = 11) seals. The chemical composition of the items found were identified using micro-Raman and micro-FTIR spectroscopies. All the samples of the three species presented anthropic particles (frequency of occurrence - %FO – 100 %). Fibers were the predominant debris, but fragments and filaments were also present. Particles smaller than 5 mm (micro debris) were predominant in all the samples. Leopard seals ingested significantly larger micro-debris in comparison with the other seal species. The dominant color was black followed by blue and white. Micro-Raman and micro-FTIR Spectroscopies revealed the presence of different anthropogenic pigments such as reactive blue 238, Indigo 3600 and copper phthalocyanine (blue and green). Carbon black was also detected in the samples, as well as plastic polymers such as polystyrene, polyester and polyethylene terephthalate (PET), polyamide, polypropylene and polyurethane These results confirm the presence of anthropogenic contamination in Antarctic seals and highlight the need for actions to mitigate the effects and reduce the contribution of debris in the Antarctic ecosystem.

Phenotypic and morphometric characterization of domestic geese raised in northern Benin

Documentation on the domestic geese (Anser anser) in Benin is scarce, making it objectively difficult to exploit. Its production depends on small flocks raised by livestock farmers in different areas. The aim of the study was to describe the phenotypic and morphometric characteristics of geese encountered in northern Benin. To this end, a total of 576 adult geese (353 males and 223 females) from 102 farms in 4 agro-ecological zones of northern Benin were evaluated for 11 quantitative and 5 qualitative body traits. There are 6 plumage colors with white (42.01%), white-brown magpie (24.65%) and white-grey magpie (17.19%) as dominant colors. The proportions of white-grey (75%) and multicolored (51.85%) in Far northern zone of Benin (FNZB) were higher (p<0.05) than those in the cotton zone of northern Benin (CZNB), Food-producing zone of southern Borgou (FZSB) and West-Atacora Zone (WAZ). The red coloring of the tarsi was more dominant in the FZSB (63.09%) and the FZSB (61.79%) (p<0.05). Orange (57.47%) and yellow (28.82%) colored beaks were dominant but did not vary (p>0.05) from one agro-ecological zone to another. Quantitative traits such as body length, tarsus length, wing span and thoracic circumference of geese varied (p<0.05) between 71.34 to73.22 cm, 10.08 to 10.6 cm, 131.95 to 135.42 cm and between 42.07 to 43.86 cm respectively. Males differed significantly from females (p<0.05) for all morphometric traits. The live weight of geese in the FNZB showed higher values than those of other agro-ecological zones (p˂0.05). In addition, white phenotype geese (3.76 kg) were heavier (p˂0.05) than other phenotypes. All correlations between weight and body measurements of domestic geese were positive, but the correlations between live weight and wing span (r = 0.68) were the strongest. These correlations could be used to assess the live weight of the geese population studied and for selection based on live weight. This study provides a reference for morpho-biometric traits and will be complemented by molecular characterization.

Pengaruh Jenis Mordan Dan Lama Waktu Pencelupan Terhadap Kualitas Warna Kain Batik Dengan Pewarnaan Alam Kulit Bawang Merah Menggunakan Proses Post-Mordanting

Red onion skin is one of the wastes that can be used as a natural dye because it contains anthocyanins which are one of the natural color pigments. The availability of red onion skin waste is very abundant, especially from household waste and industrial waste which has not been optimally utilized. The purpose of this study was to determine the effect of fixation type with different dyeing times on the color quality of batik fabric. This research method is an experiment by varying the fabric treatment in the pre-mordanting process, time variations of 30 and 60 minutes, and fixation variations, namely alum, arbor, and quicklime. The results of the study obtained that red onion skin extract is very good as a natural dye for dyeing batik fabric, the value of the color fastness test at 40 ℃ soap washing and cloth rubbing (wet) shows good quality with an average value of 4 and 4 - 5. The value of the L *, a *, b * color difference test and the results of visual observations on the pantone color produce an orange-red color that contains dominant color elements towards reddish and yellowish.

How can contamination be prevented during laboratory analysis of atmospheric samples for microplastics?

Microplastics (MPs) in the air and indoor environments are of growing concern and have led to increased testing for MPs. This study draws attention to the quality and quantitative measures of MP studies by conducting laboratory experiments (on solutions, filters, and blank samples) that were rarely or were not adopted in the airborne and indoor MP literature. Experiments have been conducted to identify contaminations that may come from experimental procedures while determining MPs in the air samples. MPs in different matrices during experiments were counted and categorized by their shapes. Chemical characterization was performed by Raman Spectroscopy. Results showed that laminar flow is the best option over a fume hood or standard laboratory environment for detecting air MPs to reduce blank levels. Blue-green and Black-Grey were the dominant colors; fiber was the predominant type of MPs seen, and most of them fall under the size range from (1-1000µm) in different indoor environments and blanks. Common MPs seen were PP, PVA, PTFE, PVC, and HDPE. Thermal treatment of fresh unused filters at 450°C for 4h was effective as it reduced the MP count by 50%. Working solutions are mainly contaminated, and their pre-filtration is essential. The average deposition of MPs in blank samples during seven days was around 55 MPs. There is an urgent need for studies on developing quality control and quality assurance of airborne and indoor MPs. Hence, a standard protocol needs to be accepted; by harmonizing procedures, comparable results can be found, uncovering the correct levels of MP contamination, as required for risk assessment.

Struktur Pertunjukan Tari Tor Tor Naposo Nauli Bulung dalam Acara Pesta Perkawinan di Sawah Mudik Kabupaten Pasaman Barat

The purpose of this study is to reveal and describe the structure of Tor Tor Naposo Nauli Bulung dance performance at a wedding ceremony in Sawah Mudik, West Pasaman Regency. This type of research is qualitative research with descriptive methods. The researcher's own research instruments and aids such as pens and cameras. Primary data and secondary data were used in this research material. Data were collected through literature study, observation, interviews and documentation. The stages of data analysis are data collection, data presentation and conclusions. The results proved that the structure of the Tor Tor Naposo Nauli Bulung Dance performance at the wedding party in Sawah Mudik consisted of movement, floor patterns, music, clothing, makeup and performance venues. Tor Tor dance consists of four movements, namely: Pangurdot movement, Pangegal movement, Pangeal movement and Pangurdot movement. The floor pattern of the Tor Tor Dance is round and straight. Musical instruments use traditional musical instruments such as gondang, flute and trumpet. Tor-tor dance clothes with the head facing outward, the outside is a typical and traditional fabric of the Batak tribe. The dominant colors of the outer fabric are red, black and white, decorated with various gold or silver threads. Tor-tor dance makeup wears beautiful makeup. The place where the tor-tor marriage contract dance performance takes place in front of the bride's house, where a special tent has been set up for the performance of the tor-tor dance, The use of Tor-tor dance in the Jorong Sawah Mudik community is as a means of entertainment, a sign of respect for elders, so that all people know that the bride and groom have been released and are not on the members of naposo nauli bulung (young men), bow down and beg for affection to the person who is le.

Microplastics in Qinghai-Tibet Plateau and Yunnan-Guizhou Plateau lakes, China

As an emerging environmental pollutant, microplastics (MPs) have received widespread attention. Recently, studies examining microplastic pollution in plateau lakes have been increasing, but few have examined the distributions, sources, and fates of MPs in different plateau areas. In this work, the abundances and characteristics of MPs in surface waters and sediments in lakes of the Qinghai-Tibet Plateau (QTP) and Yunnan-Guizhou Plateau (YGP) were systematically investigated. The abundances of MPs in the lakes of the QTP ranges within 0.05–1.8 n/L in surface waters and 10–2643.7 n/kg in sediments. In the lakes of the YGP, the abundances of MPs ranged within 1.3–10.1 n/L in surface waters and 171.7–4260 n/kg in sediments. The dominant shape, color, and size class of MPs were fiber, transparent, and 0–0.5 mm in plateau lakes, respectively. MPs were mainly composed of polypropylene, polyethylene, and polyethylene terephthalate polymers. The different sources of MPs in the QTP and YGP lakes were mainly due to differences in human activities. The primary sources of microplastic pollution in the lakes of the QTP were tourism and atmospheric transport, while sewage discharge, agriculture, and fishing activities were the main sources of MPs in urban lakes of the YGP. Although the level of microplastic pollution in plateau lakes was relatively low, the sources should be identified and monitored so that the effects and extent of microplastic pollution in these fragile environments can be fully understood. This study provides a valuable dataset and theoretical basis for subsequent research on microplastic pollution in plateau lakes.

Synaesthesia of Sergei Parajanov’s Works (a Director’s Musical and Artistic Consciousness)

The article focuses on the possibilities of examining the works of Soviet director Sergei Parajanov in the aspect of synaesthesia — a phenomenon studied by musical psychology, the re-expression of information received through one perceptual channel (such as, for instance, the visual) into information actualized through another channel (such as, for instance, the auditory). Making use of a methodology that incorporates biographical and comparative analysis, interpretation and intertextuality, the author aims at drawing the attention of synaesthesia analysts of different types of art towards Parajanov’s most representative works: the feature films The Flower on the Stone, The Color of Pomegranates, Shadows of the Forgotten Ancestors, The Legend of the Suram Fortress, and Ashik Kerib. The system of argumentation of the article is founded on statements by of the director himself as well as materials presented in, Kora Tsereteli’s monographic study, Parajanov’s scripts for feature and documentary films that have never been released (Miracle in Odense based on Hans Christian Andersen’s fairy tales, Intermezzo based on the short story of the same name by Mykhailo Kotsiubynsky, Pectoral, and The Demon based on Mikhail Lermontov’s poem), as well as the libretto for the unrealized ballet The Mother. The author’s special focus is on Parajanov’s short story Swan Lake and the film with the same name by Yuri Ilyenko, based on it. A comparative analysis of the verbal source and its film adaptation reveals how the creators work with the dominant colors — white and black — for both the story and the film. The author of the present study discerns in these particular objects of verbal discourse and screen art a kind of reverberation of the ballet Swan Lake by Pyotr Tchaikovsky.

Morphological Characterization of Purple Yam (Dioscorea alata) in Purwodadi Botanic Garden

Dioscorea spp. (Yam) is an edible tuber plant from the Dioscoreaceae family. There are around 600 species of Dioscorea spp., one of them is Dioscorea alata. D. alata has a wide range of morphological characteristics, including shape, size, skin color, flesh, and tuber texture. This research focused on D. alata with purple tuber flesh. This study aims to reveal the diversity of D. alata in Purwodadi Botanical Garden based on its morphological characteristics. Characterization is an important aspect of identifying D. alata diversity. Characterization was performed on six D. alata accessions from the Purwodadi Botanical Garden, DA 28, DA 36, DA 57, DA 86, DA-SB, and DA-Tr. Morphological characterization can be divided into qualitative and quantitative stem and leaf properties. The morphological feature data were processed using NTSys 2.11a software. The observation results showed that D. alata from different accessions had diverse morphological characteristics such as stem color, wing color, leaf margin color, leaf vein color, petiole color, and petiole wings color. The dendrogram results showed that DA 36 and DA SB accessions had a very close level of similarity. Meanwhile, the DA-Tr accession exhibited the most distinct character from the other accessions with the dominant color being purple covering stems, stem wings, leaf veins, leaf margins, petioles, and petiole wings.