scholarly journals Seed Coating with Biowaste Materials and Biocides—Environment-Friendly Biostimulation or Threat?

Agronomy ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1034
Author(s):  
Monika Skwarek ◽  
Mateusz Wala ◽  
Jeremi Kołodziejek ◽  
Katarzyna Sieczyńska ◽  
Magdalena Lasoń-Rydel ◽  
...  
Keyword(s):  
Plant Growth ◽  
Seed Coating ◽  
Negative Effects ◽  
Environment Friendly ◽  
Positive Effects ◽  
Binding Agents ◽  
Coating Method ◽  
Emergence Percentage ◽  
Pea Seeds ◽  
Positive Effect

The presented study assessed the effect of bovine (BC) and fish (FC) waste-derived collagen, poly(hexamethylenebiguanide) hydrochloride (PHMB) and waste dolomite on the emergence of seedlings, growth and development of pea (Pisum sativum L. ‘Lasso’) plants. The seed coating method was used to apply the binding agents. Some of the studied agents were showed to significantly affect the index of emergence velocity (IEV) and of emergence synchrony (IES), but not the final emergence percentage (FEP). The results showed that treatment of the pea seeds with BC, FC and PHMB had a slightly positive effect on plant growth, whereas negative effects of dolomite were observed, i.e., detrimental differences in morphological traits of stipules. Moreover, BC, FC and PHMB improved maximal efficiency of PSII (FV/FM) and did not negatively influence chlorophyll content. Analyses demonstrated positive effects of FC and PHMB and negative ones of BC and dolomite on elemental composition of roots and shoots of the studied plant species. We suggest that the FC and PHMB can be used as promising agents for improvement of plant growth, whereas usage of BC and dolomite should be limited.

MORPHOLOGICAL AND BIOCHEMICAL RESPOSES OF COW PEA (CV. PUSA BARSATI) GROWN ON FLY ASH AMENDED SOIL IN PRESENCE AND ABSENCE OF MELOIDOGYNE JAVANICA AND RHIZOBIUM LEGUMINOSARUM

1970 ◽  
Vol 17 ◽  
pp. 17-22 ◽  
Author(s):  
Kamal Singh ◽  
A. A. Khan ◽  
Iram Khan ◽  
Rose Rizvi ◽  
M. Saquib
Keyword(s):  
Fly Ash ◽  
Plant Growth ◽  
Rhizobium Leguminosarum ◽  
Growth Yield ◽  
Maximum Growth ◽  
Meloidogyne Javanica ◽  
Growth And Yield ◽  
Negative Effects ◽  
Positive Effects ◽  
Insignificant Difference

Plant growth, yield, pigment and protein content of cow-pea were increased significantly at lower levels (20 and 40%) of fly ash but reverse was true at higher levels (80 and 100%). Soil amended by 60% fly ash could cause suppression in growth and yield in respect to 40% fly ash treated cow-pea plants but former was found at par with control (fly ash untreated plants). Maximum growth occurred in plants grown in soil amended with 40% fly ash. Nitrogen content of cow-pea was suppressed progressively in increasing levels of fly ash. Moreover,  Rhizobium leguminosarum  influenced the growth and yield positively but Meloidogyne javanica caused opposite effects particularly at 20 and 40% fly ash levels. The positive effects of R. leguminosarum were marked by M. javanica at initial levels. However, at 80 and 100% fly ash levels, the positive and negative effects of R. leguminosarum and/or M. javanica did not appear as insignificant difference persist among such treatments.Key words:  Meloidogyne javanica; Rhizobium leguminosarum; Fly ash; Growth; YieldDOI: 10.3126/eco.v17i0.4098Ecoprint An International Journal of Ecology Vol. 17, 2010 Page: 17-22 Uploaded date: 28 December, 2010  

Comparison of lactational responses of dairy cows in Georgia and Israel to heat load and photoperiod

2002 ◽  
Vol 75 (3) ◽  
pp. 469-476 ◽  
Author(s):  
Y. Aharoni ◽  
O. Ravagnolo ◽  
I. Misztal
Keyword(s):  
Milk Yield ◽  
Heat Load ◽  
Protein Concentration ◽  
Day Length ◽  
Seasonal Effects ◽  
Good Match ◽  
Negative Effects ◽  
Positive Effects ◽  
Daily Change ◽  
Positive Effect

AbstractThe seasonal effects of heat load and photoperiod on yield and composition of milk from primiparous cows in the course of lactation were studied using test day records from 8968 primiparous cows on 76 farms in Georgia, collected from 1990 through 1997. The effect of prepartum photoperiod on milk production in the subsequent lactation of these cows was also evaluated. These estimated seasonal effects were compared with those estimated for 4728 primiparous cows on 13 farms, and for 1538 multiparous cows on three farms during consecutive lactations in Israel from 1994 through 1996. During lactation, the day length had a positive effect on milk yield and negative effects on fat and protein concentrations in the milk, but the daily change in day length had positive effects on milk yield and fat concentration, and a smaller positive effect on protein concentration. The day length during the prepartum period had negative effects on milk yield and fat and protein concentrations. The heat load during lactation had negative effects on milk yield and fat and protein concentrations. Most of the effects were highly (P < 0·001) significant. There was a very good match between the results obtained for primiparous cows in Georgia and Israel, for the combined effects of heat load and photoperiod during lactation on milk yield and protein and fat concentrations. The match between primiparous and multiparous cows in Israel was better for milk yield and protein concentration than for fat concentration. The estimated effects of pre-partum photoperiod were higher for multiparous cows in Israel than for primiparous cows in either country.

scholarly journals The societal influences and quality of life among healthcare team members under COVID-19 pandemic

2021 ◽  
Author(s):  
Wei-Tsung Kao ◽  
Su-Ting Hsu ◽  
Frank Huang-Chih Chou ◽  
Li-Shiu Chou ◽  
Kuan-Ying Hsieh ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Older Age ◽  
Healthcare Team ◽  
Negative Effects ◽  
Team Members ◽  
Positive Effects ◽  
Societal Influences ◽  
Positive Effect ◽  
Ptsd Severity

Abstract Background: The corona virus infection disease 2019 (COVID-19) pandemic is likely to put healthcare professionals across the world in an unprecedented situation. Methods: 683 healthcare workers were recruited in this study. Short form-12 items (SF-12), Societal Influences Survey Questionnaire (SISQ), and Disaster-Related Psychological Screening Test (DRPST) were used to survey participants. Multiple linear regression and structural equation model (SEM) were used to explore the possible factors to the societal influences and quality of life. Results: Female, older, more education years, married, regular intake and posttraumatic stress disorder (PTSD) frequency had positive effects to SISQ. To physical component summary (PCS) of SF-12, chronic illness, sleep score, PTSD frequency and social distance had negative effects and exercise habits had positive effect. To mental component summary (MCS) value of SF-12, age, participate in clubs, volunteer or charity activities and social information had positive effects and PTSD frequency, sleep score, social anxiety and depression had negative effects. Under SEM analysis, PTSD had positive effect to SISQ. Sleep score and MCS value had negative effects to SISQ. PTSD severity, older age, Sleep score, smoking and Nursing staff had negative effects to PCS value. Young age, PTSD frequency, sleep score and depression had negative effects to MCS value. Conclusion: Healthcare team members with severer PTSD symptoms suffered more societal influences. Relative to PTSD severity, PTSD frequency was more important to the quality of life. Members of older age, who frequently participate in clubs, volunteers or charity activities had better mental life quality.

scholarly journals Effect of Equity Financing Options on Financial Performance of Non-Financial Firms Listed at the Nairobi Securities Exchange, Kenya

2018 ◽  
Vol 5 (4) ◽  
pp. 160
Author(s):  
Benter Omollo Achieng ◽  
Willy Muturi ◽  
Joshua Wanjare
Keyword(s):  
Capital Structure ◽  
Corporate Finance ◽  
Financial Performance ◽  
Ordinary Least Squares ◽  
Negative Effects ◽  
Equity Financing ◽  
Financial Firms ◽  
Positive Effects ◽  
Retained Earnings ◽  
Positive Effect

Corporate finance managers worldwide have for a long time consistently sought to maximize shareholders’ wealth and their firm’s market value through their decisions on firm’s capital structure. However, both scholars and practitioners of corporate finance are yet to agree on the optimal mix of equity and debt that maximizes a firm’s financial performance. The purpose of this study was to examine the effects of equity financing options namely common stock (CS), retained earnings (REN) and total equity (TED) as ratios of total assets on the financial performance measured as return on assets (ROA) and return on equity (ROE) of Kenya’s listed firms. Utilizing panel econometric techniques namely pooled ordinary least squares (OLS), fixed effects (FE) and random effects (RE), the study analyzes the effects of equity variables as ratios of total assets on the financial performance of 40 non-financial firms listed at the Nairobi Securities Exchange between 2009 and 2015. The study’s empirical results show that CS ratio significantly and negatively affects ROA while REN ratio has a statistically significant and positive effect on ROA. Overall, TE ratio positively and significantly affects ROA. On the contrary, ROE is not significantly affected by the equity variables in the sample. While the non-significant effects of equity on ROE find support in Modigliani and Miller’s capital structure irrelevance theory, the positive effects of REN ratio and the negative effects of CS ratio on ROA, which are largely supported by the trade-off theory, may explain the pecking order theory’s prioritization of internal capital sources over debt and equity issuances. Thus, corporate finance managers should find a place for internal financing options particularly retained earnings to maximize equity holders’ returns on assets employed. Additionally, corporate finance managers should endeavour to minimize on the use of CS due to its negative effects on shareholder earnings on their assets. Nonetheless, a reasonable balance between CS and REN should be considered since the positive effect between TE and ROA is an appraisal for an optimum mix of equity financing options.

scholarly journals Effect of Biostimulants on Yield and Quality of Cherry Tomatoes Grown in Fertile and Stressed Soils

HortScience ◽  
2021 ◽  
pp. 1-10
Author(s):  
Metin Turan ◽  
Ertan Yildirim ◽  
Melek Ekinci ◽  
Sanem Argin
Keyword(s):  
Plant Growth ◽  
Mineral Content ◽  
Organic Matter Content ◽  
Growth Yield ◽  
Matter Content ◽  
Growth And Yield ◽  
Cherry Tomato ◽  
Negative Effects ◽  
Positive Effects ◽  
Different Characteristics

Plant biostimulants are microorganisms (PGPR) and/or products obtained from different organic substances that positively affect plant growth and efficiency and reduce the negative effects of abiotic challenges. Effects of biostimulants on the plant growth, yield, mineral content, antioxidant enzyme activity, H2O2, malondialdehyde (MDA), sucrose, and proline contents of cherry tomato (Solanum lycopersicum var. cerasiforme L.) grown in soils with two different characteristics were investigated during a pot study under greenhouse conditions. Soil I was a fertile routinely vegetable-cultivated soil. Soil II had high salinity, high CaCO3 content, and low organic matter content. Commercial biostimulant products Powhumus® (PH), Huminbio Microsense Seed® (SC), Huminbio Microsense Bio® (RE), and Fulvagra® (FU) were used as seed coatings and/or drench solutions. All biostimulant treatments improved the plant growth and yield compared with the control in both soils. All biostimulant applications were more effective in soil II than in soil I. RE was the most effective application for mineral content in soil I, whereas FU was the most effective in soil II. Antioxidant activity, H2O2, MDA, and proline contents were decreased in both soils when biostimulants were used compared with the control. Peroxide (POD) activity was greater with SC1 in soil II. The RE treatment increased the sucrose content in soil II. In conclusion, single and combined use of high-purity fulvic acid and PGPR had positive effects on the growth of cherry tomato in fertile soil and under stressed conditions.

Effects on Plant Growth of Material from Hydrothermal Humification Process of Biomass

2011 ◽  
Vol 322 ◽  
pp. 43-46
Author(s):  
Shu Qing Guo ◽  
Xiang Yuan Dong
Keyword(s):  
Seed Germination ◽  
Plant Growth ◽  
Root Growth ◽  
Root Elongation ◽  
Organic Fertilizer ◽  
Incubation Experiment ◽  
Negative Effects ◽  
Plant Seed ◽  
Positive Effects ◽  
Wet Weight

Hydrothermal humification (HTH) is a novel way to treat biomass in order to produce soil conditioner or organic fertilizer. A plant seed germination technique was used to assess the effect of HTH material derived from garden waste on seed germination, root elongation and germination index (GI) of cucumber at different stages of incubation. The incubation experiment was carried out with the mixture of HTH material and soil at a ratio of 1:3, 1:5 and 1:10 (HTH material:soil, wet weight) in soil. The results showed there are direct positive effects of the HTH material on seed germination and root growth. GI all were over 80%. High addition rates had non significantly negative effects on plant growth.

Positive and negative effects of allochthonous dissolved organic matter and inorganic nutrients on phytoplankton growth

2002 ◽  
Vol 59 (1) ◽  
pp. 85-95 ◽  
Author(s):  
Jennifer L Klug
Keyword(s):  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Phytoplankton Community ◽  
Phytoplankton Growth ◽  
Inorganic Nutrients ◽  
Physiological Status ◽  
Negative Effects ◽  
Positive Effects ◽  
Negative Effect ◽  
Positive Effect

Dissolved organic matter (DOM) can have both positive and negative effects on phytoplankton growth. The magnitude of these effects may vary depending on the source of DOM and the composition of the phytoplankton community. Here, I address the relative importance of the positive and negative effects of DOM extracts on phytoplankton growth. In short-term experiments with phytoplankton from West Long Lake, a small, moderately coloured lake in northern Michigan, U.S.A., the net effect of doubling ambient DOM on phytoplankton growth was positive. Increasing DOM concentrations from ~10 mg C·L–1 to ~20 mg C·L–1 had a negative effect on total phytoplankton growth by reducing irradiance and thus reducing the depth to which growth was positive. However, inorganic nutrients in the DOM extracts increased growth at each irradiance level. The positive effect on phytoplankton growth owing to the nutrients associated with DOM was greater than the negative effect caused by shading. Although the positive effects of allochthonous DOM inputs outweighed the negative effects for the nutrient-limited phytoplankton in these experiments, the net effect depends on the concentration and availability of nutrients associated with allochthonous DOM as well as the physiological status of the phytoplankton community.

scholarly journals Machiavellianism dimensions, religiosity, social environment, and tax evasion

2021 ◽  
Vol 24 (1) ◽  
pp. 1-26
Author(s):  
Jean Stevany Matitaputty ◽  
Priyo Hari Adi
Keyword(s):  
Social Environment ◽  
Tax Evasion ◽  
Online Survey ◽  
Sampling Method ◽  
Sampling Technique ◽  
Snowball Sampling ◽  
Negative Effects ◽  
Positive Effects ◽  
Negative Effect ◽  
Positive Effect

This research aims to investigate the effects of Machiavellianism dimensions that consist of the use of manipulative tactics, cynical views, and disregard of conventional morality on tax evasion. Further, we also analyze the effects of religiosity and social environment as the variables that control Machiavellianism behavior. The population in this research are individual taxpayers, and the sampling technique used is an online survey with the snowball sampling method. The criteria used in sampling are taxpayers who are self-employed or entrepreneurs.  The data is then analyzed using the univariate and multivariate General Linear Model (GLM) methods. The results show that manipulative tactics and disregard of conventional morality have positive effects on tax evasion. Meanwhile, cynical views have a negative effect on tax evasion. Further, religiosity has negative effects on the use of manipulative tactics and disregard of conventional morality. Lastly, social environment has a positive effect on cynical views but no significant effects on the use of manipulative tactics and disregard of conventional morality.

Effects of Nanomaterials on Plant Growth at Molecular Level

2021 ◽  
Vol 14 ◽  
Author(s):  
Yuxin Li ◽  
Yukui Rui ◽  
Bo Huang ◽  
Mengyuan Liu ◽  
Adeel Muhammad ◽  
...  
Keyword(s):  
Cell Wall ◽  
Plant Growth ◽  
Crop Yield ◽  
Molecular Level ◽  
Negative Effects ◽  
Stimulate Plant Growth ◽  
Carbon Based Nanomaterials ◽  
The Impact ◽  
Positive Effect ◽  
Increase Crop Yield

Abstract: Nanomaterials are widely used in all walks of life, bringing great changes to our life and production. In addition, nanomaterials have also been used in agriculture. The most common ones are carbon-based nanomaterials and TiO2 nanoparticles, which can stimulate plant growth and increase crop yield. However, not all nanomaterials have a positive effect on plant growth. Therefore, it is necessary to understand the influence of nanomaterials on plants after entering the environment. Nanomaterials can be inhaled directly or through endocytosis. Some nanomaterials will become the corresponding ion state to enter the plant, while some larger nanomaterials will block cell wall channels or adsorb on the surface of plants. Nanoparticles (NPs) enter the plant can produce positive or negative effects on the plant's genes, proteins. This paper discusses the impact of nanomaterials on plant growth and the molecular level.

scholarly journals Environmental Regulation, Two-Way Foreign Direct Investment, and Green Innovation Efficiency in China’s Manufacturing Industry

2018 ◽  
Vol 15 (10) ◽  
pp. 2292 ◽  
Author(s):  
Zhijun Feng ◽  
Bo Zeng ◽  
Qian Ming
Keyword(s):  
Foreign Direct Investment ◽  
Panel Data ◽  
Environmental Regulation ◽  
Direct Investment ◽  
Manufacturing Industry ◽  
Green Innovation ◽  
Negative Effects ◽  
Positive Effects ◽  
The Impact ◽  
Positive Effect

This paper adopts 2009 to 2015 panel data from 27 manufacturing industries in China. A Super-SBM model is used to measure the green innovation efficiency (GIE) of China’s manufacturing industry. A panel data model is then built to systematically examine the impact of environmental regulation (ER) and two-way foreign direct investment (FDI) on the GIE of China’s manufacturing industry under a unified analysis framework. The results are as follows: (1) the overall level of the green innovation efficiency in China’s manufacturing is low, and there is still great potential for improvement. Considering industry heterogeneity, the green innovation efficiency of patent-intensive manufacturing is significantly higher than that of non-patent-intensive manufacturing; (2) in terms of the whole manufacturing industry, ER and the interaction between ER and outward foreign direct investment (OFDI) have significantly negative effects on GIE, OFDI has significantly positive effects on GIE. (3) when considering industry heterogeneity, for patent-intensive manufacturing, ER and the interaction between ER and inward foreign direct investment (IFDI) have significantly negative effects on GIE, while IFDI has significantly positive effect on GIE. For non-patent-intensive manufacturing, ER and the interaction between ER and OFDI have significantly negative effects on GIE, while IFDI and the interaction between ER and IFDI have significantly positive effects on GIE.

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