Bright Red Color Research Articles

Advanced Thermochromic Ink System for Medical Blood Simulation.

Simulators for extracorporeal membrane oxygenation (ECMO) have problems of bulky devices and low-fidelity methodologies. Hence, ongoing efforts for optimizing modern solutions focus on minimizing expenses and blending training with the intensive care unit. This is particularly evident following the coronavirus pandemic, where economic resources have been extensively cut. In this paper, as a part of an ECMO simulator for training management, an advance thermochromic ink system for medical blood simulation is presented. The system was developed and enhanced as a prototype with successful and reversible transitions between dark and bright red blood color to simulate blood oxygenation and deoxygenation in ECMO training sessions.

Effect of excitation mode on the upconversion luminescence of β-NaYF4:Yb/Er nanocrystals

Upconversion nanoparticles (UCNPs) with multi-color emissions have been studied extensively owing to their potential applications in diverse research fields. The upconversion luminescence (UCL) of UCNPs is greatly affected by the excitation mode or intensity of NIR laser. Herein, the effect of excitation mode (continuous wave and pulsed excitation) on the UCL and modulation mechanism of β-NaYF4:Yb/Er nanocrystals were investigated. In this Yb3+-Er3+ co-doped nanocrystals, temporally red emission was dramatically realized by employing pulsed excitation mode. As a result, bright red color luminescence was output in β-NaYbF4:2%Er3+ nanocrystals. Besides, pulsed excitation can partially eliminate the concentration quenching effect, enhancing the optimal Yb3+ doping ratio from 20% to 50%. Excitation mode would change the dynamic balance of excitation energy transfer processes, which eventually leads to the variation of UCL of β-NaYF4:Yb/Er. These fantastic insights may open up new pathways to efficiently tailor upconversion luminescence performance in favor of further development of applications.

Capsanthin, a Plant-Derived Xanthophyll: a Review of Pharmacology and Delivery Strategies.

Capsanthin, a brightly orange-red-coloured pigment responsible for the peculiar red colour of paprika fruits (Capsicum annuum), belongs to xanthophylls, a class of oxygen-containing carotenoids. The characteristic chemical structure of capsanthin containing a keto group in conjunction with a long chain of 11 conjugated dienes is responsible for its strong radical scavenging and singlet oxygen quenching ability. Chemopreventive, antitumour, skin photo-protective, anti-inflammatory, and antidiabetic activities demonstrated by capsanthin are a consequence of its potent antioxidant action. Anti-obesity, anti-adipogenic, and antihyperlipidaemic activities are some of the more important features of capsanthin. With natural origin, bright red colour, and array of health benefits, capsanthin has a potential to be translated into a commercial cosmeceutical, nutraceutical, and/or pharmaceutical. However, the very low aqueous solubility of capsanthin is responsible for its highly variable and poor oral bioavailability. Moreover, its susceptibility to degradation due to heat, light, oxygen, and moisture poses challenges in the development of stable formulations for this otherwise meritorious compound. The current review presents various pharmacological activities of capsanthin and their underlying mechanisms. The review further discusses hitherto explored formulation strategies to improve solubility and stability of capsanthin. Graphical abstract.

Клинический случай проявлений заболеваний желудочно-кишечного тракта в полости рта

Very often in his practice, the dentist encounters diseases such as recurrent aphthous stomatitis and desquamative glossitis. The incidence of these diseases can vary from 5% to 50% depending on the population studied, diagnostic criteria and environmental factors. These diseases are closely related to diseases of the gastrointestinal tract and may be their first manifestations, which is an urgent problem and requires the joint work of specialists in various fields: dentists and gastroenterologists. Recurrent aphthous stomatitis is characterized by the appearance of aphthae on the oral mucosa and a prolonged course with periodic exacerbations of the process from 1 time in 2 years to an almost continuous course of the disease. Desquamative changes in the tongue appear as smooth, shiny spots of bright red color, surrounded by a gray-white rim of filiform papillae. Two clinical cases are presented, reflecting the need for joint work of doctors of different specialties (dentist, gastroenterologist) for the timely diagnosis and treatment of diseases of the gastrointestinal tract.

Effects of gambir (Uncaria gambir) leaf extract as a feed additive on meat quality and cholesterol content in goats

The demand for high quality and healthy meat has been continuously increasing both in national and international markets. The objective of this study was to investigate the effect of gambir (Uncaria gambir) leaf extract as a feed additive on cholesterol content and consumer preference of goat meat. Eighteen Boerka goats aged 10-11 months with an average initial body weight of 20.5±2.79 kg were randomly distributed to three dietary treatments, namely: GE0 (fed basal diet without gambir extract supplementation, GE100 (gambir extract supplementation at levels of 100 mg/kg body weight, and GE200 (gambir extract supplementation at levels of 200 mg/kg body weight. Meat cholesterol content was measured using the Liebermann Buchard method. The meat quality preference was measured using the hedonic scale of the organoleptic method from 16 panelists. Results showed that addition of gambir leaf at 200 mg/kg BW resulted meat cholesterol content of 14.9%, numerically lower than that of control. The meat color, flavour, juiciness and taste were similar among the dietary treatments. The meat was classified as mild juicy meat with a bright red color and well accepted flavour and taste. Based on the hedonic scale, the tenderness level of goat meat fed with 200 mg/kg BW of gambir leaf extract increased from mild tender (in the control treatment) to tender. In conclusion, gambir leaf extract has the potential to reduce cholesterol content and increase meat tenderness without having a negative effect on consumers preference regarding the color, flavour, juiciness and taste of the goat meat.

Simple method for preparing elemental selenium nano- coating inside a silicone surface

Selenium nanoparticles (SeNPs) with a bright red colour have aroused worldwide attention due to their unique properties in selenium supplementation because of their low toxicity and favourable bioavailability. A simple method was developed for making a red selenium nanolayer on the inner surface of Polyvinyl chloride (PVC) and silicone tube. The selenium nanoparticles were produced by the reaction of sodium selenite and ascorbic acid. Red amorphous selenium nanoparticles have been successfully synthesized by the reaction of 500 mg dm-3 Se (sodium selenite) solution with 10 g dm-3 ascorbic acid solution at room temperature, and morphology was confirmed by X-ray diffraction analysis (XRD). The coating density was compared on PVC and silicone surfaces by using Scanning Electron Microscopy (SEM) and Energy-dispersive X-ray (EDS) analysis. The nanolayer with about 16 µm thickness on the silicone surface significantly evenly distributed compared to the PVC surface. The selenium coated silicone tube could be a good source of selenium for a continuous, low-level selenium supplementation of farm animals via drinking water.

1D resistivity inversion technique in the mapping of igneous intrusives; A step to sustainable quarry development

The use of trial pits as a first step in quarry site development causes land degradation and results in more failure than success for potential quarry investors in some parts of the world. In this paper, resistivity, depth and distance values derived from 26 Vertical Electric Soundings (VES) and 2 profiling inversion sections were successfully used to evaluate a quarry site prior to development. The target rock Diabase (Dolerite) was observed and it had a resistivity range of 3.0 × 104 –7. 8 × 106 Ω-m, and was clearly distinguishable from associated rocks with its bright red color code on the AGI 1D inversion software. This target rock was overlain by quartzite, indurate shale and mudstone as overburden materials. The quartzite, with its off-red colour, has a resistivity range of 2.0 × 103–2.9 × 105 Ω-m, while the indurate shale, with a yellowish-brown colour, showed resistivity values ranging from 6.1 × 102 – 2.8 × 105 Ω-m. Topsoil was clayey, with a resistivity range from 8 – 8.6 × 102u Ω-m and depths of 0.3–1.8 m, often weathered and replaced by associated rocks outcrops. The diabase rock, in the three prospective pits mapped, showed thicknesses of between 40 and 76 m across the site. The prospective pits were identified to accommodate an estimated 2,569,450 tonnes of diabase with an average quarry pit depth of 50 m. This figure was justified by physical observations made at a nearby quarry pit and from test holes. Communities were able to prepare a geophysical appraisal of the intrusive body in their domain for economic planning and sustainability of the natural resource.

Low-temperature combustion synthesis method to prepare Na+-doped ultrafine micron-sized γ-Ce2S3 bright red pigments

In this study, the preparation of Na+-doped γ-Ce2S3 bright red pigments by low-temperature combustion synthesis method (abbreviated as LCS) was reported. The effects of different molar ratios for complexing agent and Ce salt (abbreviated as n(EDTA:Ce)) on the particle size and morphology of the precursors as well as the particle size and chromaticity of the pigments obtained after sulfidation were systematically investigated. The results showed that when n(EDTA:Ce) ​= ​2.0, the obtained precursor particles were fluffy, and the average particle size of the pigments obtained by sulfidation was only 1.14 ​μm. At same sulfidation condition, the average particle size of the pigments prepared by conventional gas-solid phase method (abbreviated as GS) reached 5.42 ​μm. The pigments chromaticity was greatly improved from L∗ ​= ​29.36, a∗ ​= ​30.45, and b∗ ​= ​24.38 (GS method) to L∗ ​= ​33.43, a∗ ​= ​38.32, and b∗ ​= ​32.34 (LCS method), which indicates that the pigments prepared by LCS method have smaller particle size and brighter red color.

Evaluation of chemical composition and antioxidant activity of Himalayan Red chilli varieties

Three varieties of Himalayan Red chilli of North India (Kashmiri Local, Kupwari Local and Shalimar Long) were evaluated for their proximate composition, mineral content, carotenoid and capsaicinoid composition, total phenolics and flavonoids including phenolic acids and antioxidant activity. Magnesium was found to be a major mineral present in all the varieties. A total of 6 major carotenoids and 3 major capsaicinoids were found by HPLC, out of which capsanthin and capsaicin were dominant components primarily responsible for the attractive bright red colour and pungency (hotness) respectively. The total carotenoids and capsaicinoids of three chilli varieties ranged from 1005 to 1162 mg/kg and 1046–1231 mg/kg respectively. The total phenolics and flavonoids were of the order of 7438–11930 mg GAE/kg and 3778–6116 mg RU/kg. Among all the phenolic acids analysed, gallic acid was found to be dominant in all the varieties of red chilli. Shalimar Long variety was found to exhibit significantly (p ≤ 0.05) higher capsaicinoids, total phenolics, flavonoids and phenolic acids. Kupwari Local variety was found to possess significantly (p ≤ 0.05) higher carotenoids, thereby contributing to bright red colour. The highest antioxidant potential with low EC50 value was contributed from Shalimar Long variety for all antioxidant assays.

Sediment colour as recorder of climate and tectonics: Cenozoic continental red beds of the Himalayan foreland basin in NW India

The Cenozoic Himalayan foreland basin sedimentary facies are widely studied by researchers as they preserve record of complex interplay between tectonics, sedimentation and climate. Palaeoclimate reconstructions from these sediments have been done using various proxy tools. Colour of sedimentary facies is considered as one of the diagnostic palaeoclimate/climate indicator and the red colour is commonly associated to be with hot, arid climate. The Himalayan foreland basin (HFB) sediments from the oldest to the youngest, comprise almost all red and grey shades and the bright red facies greatly fascinate Earth Scientists. These red to grey coloured Himalayan foreland basin sediments preserve a record of global to regional climatic cycles and tectonic pulses. Studies pertaining to red colour and climate, specifically its association with hot, arid climate, are overwhelming. In general, studies focusing on continental red beds with specific climate are contradictory and confusing till date. Paradoxically, we now know more about red colour and climate than about red color and tectonics. Therefore, representative Himalayan foreland basin red beds of different times in the NW Himalaya have been selected for the present study. The HFB red beds of Oligocene, middle Miocene and upper Pliocene age have been investigated to find out any specific relationship of tectonics and/or particular climate cycles with red colour of these sediments on the basis of compilation of morphological, micromorphological, sub-microscopic and geochemical studies. It has been found that the bright red and grey colour shades are reliably shown by finer facies, particularly palaeosols, and coarser facies of the HFB sediments respectively, whether formed in cool, humid conditions or warm, arid conditions. This suggests greater role of tectonics during foreland basin sedimentation for preservation of sediment colour. Also, the purpose of this study is to highlight the need for more such investigations at various temporal and spatial scales in foreland basin sediments so that the colour of sediment can be appropriately used in future investigations dealing with sediment colour as an indicator of specific climate.

RESULTS OF STEP CROSSES IN SELECTION OF PEAR DWARFISM DONORS

The article presents the results of 20 years of research on the implementation of a project to create pear varieties and complex donors of monogenously determined dwarfism (gene D) with high winter hardiness, group resistance to fungal diseases — scab (Venturia pirina Aderh., brownish (Entomosporium maculatum Lev.) and Septoria (Septoria piricola Desm.) and bright red color of fruits (gene C). The research was conducted according to generally accepted methods in the pear breeding gardens of Russian Research Institute for Fruit Crop Breeding in 2000-2019. The study objects were populations of hybrid pear seedlings obtained from targeted crosses of highly adaptive forms and hybrids of pears with descendants of the 4th generation of the Karlikovaya Zelyonaya variety (Nain Vert), heterozygous for the dwarfism gene (Dd) in the first stage, and hybrid seedlings from crossing a DK-2 donor with sources of good fruit taste in the second stage. The aim of the research was to identify winter-hardy complex donors of dwarfism for further use in breeding programs for the creation of intensive pear varieties. Seedlings were grown using conventional technology in a breeding garden on a plot with dark gray forest soil. As a result of research for further use in breeding as complex donors of dwarfism, winter hardiness, group resistance to fungal diseases and red color of fruits, 3 forms were selected in the second stage of crosses (DK-1-6-57, DK-1-674, DK-1-4-38). Their use in long-term innovative breeding programs for the creation of intensive pear varieties will allow to conduct rejections at the early stages of ontogenesis and thereby to reduce the volume of hybrid families by 2-4 times. These complex donors are briefly characterized.

In situ construction of pomegranate-like γ-[Li]-Ce2S3@ c-SiO2 as high-temperature and acid tolerant red pigment

Development of non-toxic, high-temperature and acid tolerant red pigment is of significance for ceramic decoration. Here, we report a microemulsion and controlled calcination route to prepare pomegranate-like microscale particles consisting of inlaid Li-doped γ-Ce2S3 red pigment in cristobalite (c-SiO2) subunits (pomegranate-like γ-[Li]-Ce2S3@c-SiO2) with greatly improved high-temperature stability and acid corrosion resistance. The key of this method is to synthesize the precursors of γ-[Li]-Ce2S3@c-SiO2 during microemulsion process, which is particularly sensitive to synthesis conditions. The optimum parameters in terms of orthogonal experiment are the Ce/Si mole ratio of 1:9, 45 °C of reaction temperature, and 4.5 ml of ammonia (25.0 wt%). When the precursor above is treated by sulfurization and calcination, the obtained pomegranate-like γ-[Li]-Ce2S3@c-SiO2 exhibits outstanding properties. After soaking in concentrated hydrochloric acid (12.0 mol/L) for 24 h followed by calcining at 900 °C in air, the pomegranate-like γ-[Li]-Ce2S3@c-SiO2 still shows a bright red color. These excellent performances are primarily attributed to the outer dense c-SiO2 coating, which plays a key role in successfully preventing the inner γ-[Li]-Ce2S3 from acid and thermal corrosion. The high-temperature stability and anti-acid corrosion highlight the promise of its potential for commercial red ceramic pigments.

Determination of banned adulterants in turmeric and chilli powders using ultra-high-performance liquid chromatography

Sudan I and metanil yellow are azo dyes, illegally used to impart bright red and yellow color to foods respectively. It is assumed that these appearances are due to adulteration. Regulations must be able to detect the substances in a cost-effective, efficient, and sensitive manner. A simple and precise ultra-high-performance liquid chromatography with photodiode array detector based analytical method is developed for detection and quantification of metanil yellow and Sudan 1 from turmeric and chili powders. The method necessitated no sample clean up from matrix components and the separation of the analytes was performed on a reversed-phase C18 column with an optimized solvent system consisting of 0.6305 g of ammonium formate + 100 µL of formic acid in HPLC grade water-methanol: acetonitrile (70:30 V/V) for metanil yellow at 413 nm and 0.2% formic acid in water-acetonitrile (30:70, V/V) for curcumin at 425 nm. Depending on the metanil yellow and Sudan I dye involved, LOD and LOQ were in the range of 0.05–0.12 μg/Kg and 0.3–0.5 μg/Kg in the turmeric and red chili powders respectively. The recovery, repeatability and reproducibility varied from 80.6 to 112.60% from 0.3 to 0.83%, and less than 20% RSD. Linearity obtained for metanil yellow and Sudan I was all r2 > 0.9999 and in the range of 0.5–1.0 mg/L and 0.05–5 mg/L respectively. The proposed method was applied to determine the concentration of curcumin and metanil yellow in 11 market samples, 24 rhizome powder samples and Sudan1 from 9 chili powder samples. This method has the potential to be used for illegal Sudan dyes and metanil yellow in turmeric and red chili powders due to its reliable, rapid and excellent precision.

The effect of high CO2 treatment on targeted metabolites of ‘Seolhyang’ strawberry (Fragaria × ananassa) fruits during cold storage

‘Seolhyang’ strawberries are popular in Asian markets owing to their bright-red color and desirable flavor. However, Seolhyang strawberries have a fragile outer layer and a short shelf-life. Therefore, ‘Seolhyang’ strawberries are often treated with CO2 to prolong their shelf-life. However, the effects of high CO2 treatment on the quality of Seolhyang strawberries are unclear. Herein, the effects of a short-term high CO2 treatment on the decay rate, firmness, color, targeted metabolite profile, and antioxidant activity of Seolhyang strawberries in two ripening stages (i.e., half-red and bright-red) were investigated during a 9-day cold storage period. Targeted metabolites (i.e., sugars, organic acids, and anthocyanins) were investigated using HPLC and/or UHPLC-qTOF. CO2-treated strawberries exhibited lower (although not significantly) decay rates than untreated strawberry samples. The bright-red samples contained higher levels of anthocyanins than the half-red samples, regardless of CO2 treatment, during storage. High CO2-treated half-red and bright-red strawberries exhibited firmness, color, and metabolite profiles similar to those of their controls at the final storage time. Interestingly, CO2-treated half-red strawberry samples showed higher antioxidant activity than the control. Thus, CO2 treatment may prolong the shelf-life of Seolhyang strawberries without loss of quality based on improving their targeted metabolite profiles and antioxidant activity.

High ZnPP-forming food-grade lactic acid bacteria as a potential substitute for nitrite/nitrate to improve the color of meat products

Zinc protoporphyrin IX (ZnPP)-forming food-grade lactic acid bacteria (LAB) were screened from various sources for their ability to improve the color of meat products. The effects of salt and nitrite on the ZnPP-forming ability of these bacteria were also investigated. Finally, these bacteria were applied in salt-added minced meat to assess their ability to improve the color. Twenty-five LAB were screened for their ZnPP-forming ability in pork. Most of the strains exhibited maximum growth anaerobically in 3% salt at 30 °C and grew well at pH 5.5 and 6.5. Moreover, 3% salt slightly retarded ZnPP formation; however, nitrite completely inhibited ZnPP formation in all the ZnPP-forming LAB. Thirteen LAB (avoiding duplication and non-food-grade) could form ZnPP in salt-added minced meat, resulting in improvement of the bright red color, high ZnPP autofluorescence, and increased fluorescence intensity. Finally, considering the safety, Lactobacillus plantarum, Lactococcus lactis subsp. cremoris, and Leuconostoc lactis were suggested as promising candidates to improve the color of meat products.

Tracing fault‐related fluids using in situ trace elements: A case study in Upper Cambrian dolostone in Gucheng area, Tarim Basin, NW China

The Gucheng area, located in the east of the Tarim Basin, is one of the important gas exploration targets, and the Upper Cambrian dolostone is the main pay layer. The dolostone is considered to be altered by hydrothermal fluids, but the hydrothermal altering degrees are still unclear. In this study we report the petrography and in situ trace elemental data, and try to discuss the hydrothermal fluids and their impact on the Upper Cambrian dolostones. Based on the petrography and CL properties, five types of dolomites are identified. MD1 and MD2 are the matrix dolomites. The crystal size of MD1 range from approximately 30 to 100 μm, while the MD2 is larger than 200 μm. Cement dolomite (CD) occurring only in vugs and fractures is subdivided into three types depending on the CL properties. CD‐zone1 is the core of CD with dull CL colours. CD‐zone2 comprises a bright red CL colour zone and a dull CL colour zone, and CD‐zone3 is the rim of CD dolomite with bright red CL colours. MD2 and CD‐zone1 show light rare earth elements (LREE) depletion, middle rare earth elements (MREE) enrichment and negative Eu anomalies. The REEY patterns of CD‐zone3 dolomite are marked by LREE enrichment and positive Eu anomalies. CD‐zone2 is the transitional mineral phase that shows slightly LREE depletion and negative Eu anomalies. The REEY patterns of CD‐zone1 suggest that CD‐zone1 is likely formed by local redistribution of older dolomites in a closed system. The REEY patterns of CD‐zone3 may indicate a magmatic associated hydrothermal fluid. Based on the petrography and in situ trace elemental data, the Permian magmatic fluid, which is recorded in CD‐zone2 and CD‐zone3 dolomites, may be only limited within fractures, while unlikely significantly altered the matrix dolomite in the Upper Cambrian.

Genome-Wide Identification and Evolutionary Analysis of AOMT Gene Family in Pomegranate (Punica granatum)

Gene duplication is the major resource with which to generate new genes, which provide raw material for novel functions evolution. Thus, to elucidate the gene family evolution after duplication events is of vital importance. Anthocyanin O-methyltransferases (AOMTs) have been recognized as being capable of anthocyanin methylation, which increases anthocyanin diversity and stability and improves the protection of plants from environmental stress. Meanwhile, no detailed identification or genome-wide analysis of the AOMT gene family members in pomegranate (Punicagranatum) have been reported. Three published pomegranate genome sequences offer substantial resources with which to explore gene evolution based on the whole genome. Altogether, 58 identified OMTs from pomegranate and five other species were divided into the AOMT group and the OMT group, according to their phylogenetic tree and AOMTs derived from OMTs. AOMTs in the same subclade have a similar gene structure and protein conserved motifs. The PgAOMT family evolved and expanded primarily via whole-genome duplication (WGD) and tandem duplication. PgAOMTs expression pattern in peel and aril development by qRT-PCR verification indicated that PgAOMTs had tissue-specific patterns. The main fates of AOMTs were neo- or non-functionalization after duplication events. High expression genes of PgOMT04 and PgOMT09 were speculated to contribute to “Taishanhong” pomegranate’s bright red peel color. Finally, we integrated the above analysis in order to infer the evolutionary scenario of AOMT family.

Pyrus-dwarf project: interim results

The article presents the data based on 17 year-research – PYRUS DWARFT – aimed at developing varieties and complex donors of monogenously determined dwarfism (gene D), high winter hardiness, group-resistance to fungal diseases (Venturia pirina Aderh., Entomosporium maculatum Lev., Septoria piricola Desm.) and the bright red colour of a pear fruit (gene C). Their use in long-term innovative breeding technologies for obtaining pear varieties of the intensive type will allow screening at the early stages of ontogenesis and thereby reduce the number of hybrid families by 2–4 times. A brief description of complex donors is provided in the paper.

Protective Properties of Traditional Wood Paint Based on Cattle Blood

ABSTRACT In the past, cattle blood was used for painting in central Europe mainly for interior wooden elements. Unfortunately, this common wood-coating technique of the past had vanished during the 20th century and only many misinformed opinions are left about this coating’s purpose and its effects on wood durability. Three different recipes were used for beech and pine sapwood treatment, which were tested for their durability against wood-rotting fungi and termites. The fire retardancy of blood-based paints and its color change during the hardening process was determined as well. Over the course of time the bright brick red color of the coating turns a dark brown color. The coating surface layer did not protect the wood against either white- or brown-rot fungus; it is rather a source of nutrients necessary for a fungi degradation activity. The specimen treatment with the blood-based paint did not avoid termites feeding on wood, however the overall mortality was reached at the end of the test. The higher pH of the treated wood and/or available amount of micronutrients could be plausible explanations. Although fire retardancy of the coating was not proved, flame-exposed spruce wood with the coating did not show significantly improved fire resistance compared to untreated wood.

ПРОДОЛЖИТЕЛЬНОСТЬ И ПРОДУКТИВНОСТЬ ЦВЕТЕНИЯ ЭЛИТНЫХ ГИБРИДОВ ЛИЛЕЙНИКА HEMEROCALLISL.ВУСЛОВИЯХЛЕСОСТЕПИАЛТАЙСКОГОКРАЯ

he results of studying daylily hybrids (Hemerocallis L.) are discussed. The research goal is tostudy daylily hybrids with different colors, long and productive flowering, and adapted to the conditions of the Altai Region’s forest-steppe. The research targets were as following: the control variety Golden Gift and 9 promising hybrids of 2006-2008 obtained by crossing of the daylily developed in the Altai Region. The studies were carried out according to the gen-erally accepted methodology. In 2015, 2019, and 2020, no winter damage was observed in daylily hybrids. Shoot growth was observed from April 13to April 20; the begin-ning of flowering –from June 10 to August 2. The total duration of the hybrids’ ornamental value made over 2.5 months (from June 10 to September 7). The generative productivity in the studied hybrids was 18-270 flowers per plant. Most hybrids were red in color. The hybrid 20-07-17 had a spider-like flower shape; 3-07-3 -star-shaped; the rest had rounded and triangular flowers. Flower diameter in the hybrids varied within 7.4-16.2 cm; in the control -10.2 cm. The hybrid plants grew in width to 37-62 cm. The plant height varies from 40 to 64 cm which is important for creating flower arrangements for urban and household plot landscaping. All the studied hybrids have high ornamental and productive characteristics; among them there arecan-didate varieties for further selective breeding and expan-sion of genetic diversity. As a result, profusely blooming hybrids of daylily Hemerocallis L.with early, medium, and late flowering were studied; this would allow increasing the duration of ornamental value for more than 2.5 months. The best are the following hybrids: 1-06-15 -tall, red-colored and triangular-shaped flower; 20-07-17 -tall, large-flowered, red-colored and spider-shaped flower; 4-07-150 -crimson-red color and triangular shape ofthe flower; 7-07-5 -bright red color and triangular shape of the flower; 19-08-2 -crimson color and triangular shape of the flower.