scholarly journals The Effect of Silicon and The Status of Phenolic Compounds On The Germination of Cowpea (Vigna unguiculata L. Walp.) Under Temperature Stress

2021 ◽  
Vol 5 (4) ◽  
pp. 870-880
Author(s):  
İlkay YAVAŞ ◽  
Burcu KESER
Keyword(s):  
Elevated Temperature ◽  
Phenolic Compounds ◽  
Seedling Growth ◽  
Germination Rate ◽  
Second Phase ◽  
The Status ◽  
Ameliorative Effect ◽  
Positive Effect ◽  
Q Values ◽  
Good Germination

The aim of the study was to evaluate the elevated temperature on germination and seedling growth and the ameliorative effect of silicon on the phenolic compounds of black-eyed cowpea. The seeds were allowed to germinate at 30 (control), 36 and 44°C temperatures, under controlled conditions, silicons were with concentrations of 0.0 (control) and 1.5 mM. In the second phase of the experiment, some of the seeds were grown in plastic cups with sieved soil at 30 °C, 36 °C and 44 °C for phenolic compounds. Among the temperature treatments, plant deaths occurred at 44 °C. The raise in temperature importantly reduced germination and related traits. Except for SL, the seeds showed good germination at 30 °C after Si application. In high temperatures, silicon applications had a positive effect on germination and seedling growth, except for the germination rate. Results showed that an increase in GA, PA, Q, CAM, CA, PCA, SA, VA, CAF as temperatures increased. But chlorogenic acid and Q values were higher at 30 °C. This study clearly observed that the growth of cowpea seedlings decreased with temperature increase, but silicon attenuated these effects.

Microstructural characterization of a rapidly solidified Al-Fe-V-Si alloy for elevated temperature applications

1988 ◽  
Vol 46 ◽  
pp. 550-551
Author(s):  
R. E. Franck ◽  
J. A. Hawk ◽  
G. J. Shiflet
Keyword(s):  
High Temperature ◽  
Elevated Temperature ◽  
Grain Growth ◽  
Volume Fraction ◽  
Microstructural Characterization ◽  
Second Phase ◽  
Microstructural Stability ◽  
Elevated Temperature Strength ◽  
Temperature Applications

Rapid solidification processing (RSP) is one method of producing high strength aluminum alloys for elevated temperature applications. Allied-Signal, Inc. has produced an Al-12.4 Fe-1.2 V-2.3 Si (composition in wt pct) alloy which possesses good microstructural stability up to 425°C. This alloy contains a high volume fraction (37 v/o) of fine nearly spherical, α-Al12(Fe, V)3Si dispersoids. The improved elevated temperature strength and stability of this alloy is due to the slower dispersoid coarsening rate of the silicide particles. Additionally, the high v/o of second phase particles should inhibit recrystallization and grain growth, and thus reduce any loss in strength due to long term, high temperature annealing.The focus of this research is to investigate microstructural changes induced by long term, high temperature static annealing heat-treatments. Annealing treatments for up to 1000 hours were carried out on this alloy at 500°C, 550°C and 600°C. Particle coarsening and/or recrystallization and grain growth would be accelerated in these temperature regimes.

Salinity Tolerance of Black Gram Cultivars During Germination and Early Seedling Growth

2018 ◽  
Vol 51 (3) ◽  
pp. 51-68 ◽  
Author(s):  
M.K. Hasan ◽  
M.S. Islam ◽  
M.R. Islam ◽  
H.N. Ismaan ◽  
A. El Sabagh
Keyword(s):  
Salt Stress ◽  
Salinity Tolerance ◽  
Seedling Growth ◽  
Negative Impact ◽  
Germination Rate ◽  
Dry Weight ◽  
Germination Percentage ◽  
Shoot Length ◽  
Sand Culture ◽  
Black Gram

Abstract A laboratory experiment regarding germination and seedling growth test was conducted with three black gram genotypes tested under three salinity levels (0, 75 and 150 mM), for 10 days, in sand culture within small plastic pot, to investigate the germination and seedling growth characteristics. Different germination traits of all black gram genotypes, like germination percentage (GP), germination rate (GR), coefficient of velocity of germination (CVG) greatly reduced, as well as mean germination time (MGT) increased with increasing salt stress. At high salt stress, BARI Mash-3 provided the highest GP reduction (28.58%), while the lowest was recorded (15.79% to control) in BARI Mash-1. Salinity have the negative impact on shoot and root lengths, fresh and dry weights. The highest (50.32% to control) and lowest reduction (36.39%) of shoot length were recorded in BARI Mash-2 and BARI Mash-1, respectively, under 150 mM NaCl saline conditions. There were significant reduction of root lengths, root fresh and dry weight, shoot length, shoot fresh and dry weight in all genotypes under saline condition. The genotypes were arranged as BARI Mash-1 > BARI Mash-3 > BARI Mash-2, with respect to salinity tolerance.

scholarly journals The nutritional use of millet grain for food and feed: a review

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Z. M. Hassan ◽  
N. A. Sebola ◽  
M. Mabelebele
Keyword(s):  
Phenolic Compounds ◽  
Human Health ◽  
Pearl Millet ◽  
Egg Production ◽  
Positive Impact ◽  
The Body ◽  
Broiler Performance ◽  
Food And Feed ◽  
High Antioxidant Activity ◽  
Positive Effect

AbstractWorldwide, millets are regarded as a significant grain, however, they are the least exploited. Millet grain is abundant in nutrients and health-beneficial phenolic compounds, making it suitable as food and feed. The diverse content of nutrients and phenolic compounds present in finger and pearl millet are good indicators that the variety of millet available is important when selecting it for use as food or feed. The phenolic properties found in millets compromise phenolic acids, flavonoids, and tannins, which are beneficial to human health. Moreover, finger millet has an exceptionally unique, more abundant, and diverse phenolic profile compared to pearl millet. Research has shown that millet phenolic properties have high antioxidant activity. The presence of phytochemicals in millet grains has positive effect on human health by lowering the cholesterol and phytates in the body. The frantic demands on maize and its uses in multiple industries have merited the search for alternative grains, to ease the pressure. Substitution of maize with pearl and finger millets in the diets of different animals resulted in positive impact on the performance. Including these grains in the diet may improve health and decrease the risks of diseases. Pearl millet of 50% or more can be used in broiler diets without adversely affecting broiler performance or egg production. Of late, millet grain has been incorporated in other foods and used to make traditional beverages. Thus, the core aim of this review is to provide insight and comprehension about the nutritional and phenolic status of millets and their impact on human and livestock.

scholarly journals Temporal and Spatial Heterogeneity of PM2.5 Related to Meteorological and Socioeconomic Factors across China during 2000–2018

2022 ◽  
Vol 19 (2) ◽  
pp. 707
Author(s):  
Xiangxue Zhang ◽  
Changxiu Cheng
Keyword(s):  
Socioeconomic Factors ◽  
Southern China ◽  
Yangtze River Delta ◽  
Socioeconomic Factor ◽  
Factors Affecting ◽  
The North ◽  
The Status ◽  
Risk Areas ◽  
Future Direction ◽  
Q Values

In recent years, air pollution caused by PM2.5 in China has become increasingly severe. This study applied a Bayesian space–time hierarchy model to reveal the spatiotemporal heterogeneity of the PM2.5 concentrations in China. In addition, the relationship between meteorological and socioeconomic factors and their interaction with PM2.5 during 2000–2018 was investigated based on the GeoDetector model. Results suggested that the concentration of PM2.5 across China first increased and then decreased between 2000 and 2018. Geographically, the North China Plain and the Yangtze River Delta were high PM2.5 pollution areas, while Northeast and Southwest China are regarded as low-risk areas for PM2.5 pollution. Meanwhile, in Northern and Southern China, the population density was the most important socioeconomic factor affecting PM2.5 with q values of 0.62 and 0.66, respectively; the main meteorological factors affecting PM2.5 were air temperature and vapor pressure, with q values of 0.64 and 0.68, respectively. These results are conducive to our in-depth understanding of the status of PM2.5 pollution in China and provide an important reference for the future direction of PM2.5 pollution control.

scholarly journals Impacts of different salt source and concentrations on germination and seedling growth of many pumpkin seeds used as rootstoch in Iran

Genetika ◽  
2012 ◽  
Vol 44 (2) ◽  
pp. 235-250 ◽  
Author(s):  
Ahmad Dadashpour
Keyword(s):  
Electrical Conductivity ◽  
Seed Germination ◽  
Seedling Growth ◽  
Root Length ◽  
Germination Rate ◽  
Shoot Length ◽  
Root Weight ◽  
Pumpkin Seeds ◽  
High Concentrations ◽  
Shoot Weight

The effects of different salt sources (C Cl2, NaCl, and KCl) and concentrations, as measured by electrical conductivity, (0, "control", 1, 3, 5, 7 and 9 dS m-1) on seed germination and seedling growth of ?Ferro?, ?Obez?, ?RS 841? and ?Strong Tosa F1? pumpkin varieties used as rootstock were investigated in this study. The results showed that germination rate, root length, shoot length, fresh root weight, dry root weight, fresh shoot weight and dry shoot weights tend to decrease when the electrical conductivity of the solution is higher than 5 dS m-1, independent of salt sources and in all of the varieties. Three days after seeding, a germination ratio of 5 % was obtained from RS 841 variety in all salt source and concentrations, while a germination ratio over 50 % was obtained in ?Strong Tosa? variety for the same conditions except CaCl2 salt source. Nevertheless, seeds germinated in medium having high concentrations of CaCl2 had lower germination rate and poor seedling growth, compared to media having the same concentrations of NaCl and KCl. It was concluded that all of the varieties studied were more sensitive to the concentrations prepared using CaCl2 than that of the KCl, and NaCl.

scholarly journals PECULIARITIES OF THE COMPOSITION OF WHEAT AND RYE BRAN AND THEIR ROLE IN THE PREVENTION OF CHRONIC DISEASES OF HUMAN REVIEW

2021 ◽  
pp. 41-58
Author(s):  
N. L. Lukyanchikova ◽  
V. A. Skryabin ◽  
K. A. Tabanyukhov
Keyword(s):  
Type Diabetes ◽  
Phenolic Compounds ◽  
Ferulic Acid ◽  
Human Health ◽  
Epidemiological Studies ◽  
Special Role ◽  
Secondary Products ◽  
Cereal Bran ◽  
Immunomodulatory Properties ◽  
Positive Effect

The paper analyzes the literature on the therapeutic and prophylactic effects of components of secondary products of processing of rye and wheat – dietary fiber and phenolic compounds – on human health. A special role is played by soluble arabinoxylans and xylooligosaccharides associated with ferulic acid, which have prebiotic, antioxidant and immunomodulatory properties. Experimental and epidemiological studies have shown that the inclusion of cereal bran in the diet has a positive effect on human health and helps to reduce the risk of diseases associated with the Western type of diet – atherosclerosis, second type diabetes, and various types of oncology.

scholarly journals Phenolic Compounds in Honey and Their Relationship with Antioxidant Activity, Botanical Origin, and Color

Antioxidants ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 1700
Author(s):  
Ana L. Becerril-Sánchez ◽  
Baciliza Quintero-Salazar ◽  
Octavio Dublán-García ◽  
Héctor B. Escalona-Buendía
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Geographical Origin ◽  
Sensory Characteristics ◽  
Intrinsic Properties ◽  
The Status ◽  
Great Relevance ◽  
Therapeutic Properties ◽  
Physical And Chemical

Honey has been employed since antiquity due to its sensory, nutritional, and therapeutic properties. These characteristics are related to its physical and chemical composition. For example, phenolic compounds are substances that can determine antioxidant activity, as well as sensory characteristics, and can be employed as biomarkers of floral and geographical origin. This has generated a growing interest in the study of phenolic compounds and their influence in the intrinsic properties of this beekeeping product. This review aims to summarize, analyze, and update the status of the research that demonstrates the role of phenolic compounds in antioxidant activity, botanical-geographical origin, and the sensory characteristics of honey. These phenolic compounds, according to various results reported, have great relevance in honey’s biological and functional activity. This leads to research that will link phenolic compounds to their floral, geographical, productive, and territorial origin, as well as some sensory and functional characteristics.

scholarly journals Does seed size affect the germination rate and seedling growth of peanut under salinity and water stress?

2019 ◽  
Vol 49 ◽  
Author(s):  
Fábio Steiner ◽  
Alan Mario Zuffo ◽  
Aécio Busch ◽  
Tiago de Oliveira Sousa ◽  
Tiago Zoz
Keyword(s):  
Water Stress ◽  
Seed Size ◽  
Seedling Growth ◽  
Germination Rate ◽  
Stress Conditions ◽  
Medium Size ◽  
Dry Matter Accumulation ◽  
Initial Growth ◽  
Sowing Time ◽  
Important Indicator

ABSTRACT Seed size is an important indicator of physiological quality, since it may affect seed germination and seedling growth, especially under stress conditions. This study aimed to investigate the effects of seed size on germination and initial seedling growth, under salinity and water stress conditions. The treatments were arranged in a completely randomized design, in a 3 × 3 factorial scheme: three seed size classes (small, medium and large) and three stress treatments (control, saline or water stress), with four replicates. Water and salt stresses do not reduce the germination rate of medium and large seeds; however, the germination rate of small seeds is reduced under salt stress conditions. Drought stress drastically reduces the shoot growth of seedlings regardless of seed size, whereas root growth is higher in seedlings from medium and large seeds under water stress conditions. Under non-stressful environments, the use of large seeds is preferable, resulting in more vigorous seedlings with a greater dry matter accumulation. Medium-size seeds are more adapted to adverse environmental conditions and, therefore, should be used under conditions of water shortage and salt excess in the soil at sowing time. Seedlings are more tolerant to salinity than to water stress during the germination stage and initial growth under laboratory conditions.

scholarly journals The Effect of Rosa spinosissima Fruits Extract on Lactic Acid Bacteria Growth and Other Yoghurt Parameters

Foods ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 1167
Author(s):  
Marek Szołtysik ◽  
Alicja Z. Kucharska ◽  
Anna Sokół-Łętowska ◽  
Anna Dąbrowska ◽  
Łukasz Bobak ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Lactic Acid ◽  
Phenolic Compounds ◽  
Antioxidant Properties ◽  
Positive Influence ◽  
Quality Characteristics ◽  
Additive Concentration ◽  
Bacteria Growth ◽  
High Antioxidant Activity ◽  
Positive Effect

The aim of the study was to evaluate the effect of purified extract from Rosa spinosissima fruits on the quality characteristics and antioxidant properties of yoghurt. The extract, added to yoghurt at a concentration of 0.1% and 0.2%, contained high quantities of phenolic compounds and exhibited high antioxidant activity due to the presence of anthocyanins flavan-3-ols, flavonols and ellagitannins. Yoghurt physicochemical properties, microbiology and antioxidant properties were evaluated after 1, 7 and 14 days of storage at a temperature of 4 °C. The data revealed a positive influence of rose preparation on yoghurt’s microflora and on its other properties. The highest count of traditional yoghurt microflora was observed in samples with 0.2% of extract. Its addition had a positive effect on the yoghurts’ color, giving them a characteristic pink color of an intensity dependent on additive concentration. It also significantly affected the yoghurts’ antioxidant properties, which were stable during storage, as well as the content of the introduced phenolic compounds.

Green human resource management

2017 ◽  
Vol 25 (5) ◽  
pp. 762-788 ◽  
Author(s):  
Pavitra Mishra
Keyword(s):  
Resource Management ◽  
Human Resource Management ◽  
Human Resource ◽  
Management Practices ◽  
Second Phase ◽  
Content Type ◽  
Human Resource Management Practices ◽  
The Status ◽  
Green Human Resource Management ◽  
Sustainable Organizations

Purpose The purpose of this study is to explore the status and challenges of green human resource management practices in India, an under-researched area. Further, it proposes a theoretical framework to fill the identified gaps and build a sustainable organization. Design/methodology/approach Multimethod approach was used. The research was conducted in two phases. Archival research was conducted in the first phase, and a case study technique was employed in the second phase. In the first phase, an extensive literature review was carried out to gather insights on prevalent green human resource activities and their link with sustainable organizational development. In the second phase, data were collected from the manufacturing organizations to analyze the status of the activities identified in the first phase. Findings This study highlights status of green human resource practices such as environmental training, green recruitment, performance appraisal, employee involvement and compensation. The findings suggest that there is further scope to utilize the full potential of GHRM practices for encouraging pro-environmental behavior in the organizations. Analyses of data also reveal that top-management support and mutual learning among departments are crucial to facilitate green behaviors among employees. Research limitations/implications This study provides a comprehensive literature review of green-human resource management practices. It suggests an interdisciplinary framework for building holistic sustainable organizations by integrating learnings from green human resource management, green supply-chain management, competitive advantage strategy and green corporate social responsibility. It highlights gaps in the system and provides insights to managers and policy makers on building holistic sustainable organizations. Originality/value This study fulfills the need to explore green human resource management in emerging economies like India. Studies like these are more important in developing countries, which have alarming environmental concerns and poorly implemented government regulations.

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