scholarly journals Assessing impact of thermal units on growth and development of mustard varieties grown under optimum sown conditions

2021 ◽  
Vol 21 (3) ◽  
pp. 270-281
Author(s):  
M.R. ISLAM ◽  
M.A. ALAM ◽  
MOHD. MOSTOFA KAMAL ◽  
R. ZAMAN ◽  
AKBAR HOSSAIN ◽  
...  
Keyword(s):  
Growth And Development ◽  
Positive Association ◽  
Growth And Yield ◽  
Growth Stages ◽  
Thermal Unit ◽  
Sunshine Hours ◽  
Strong Positive Association ◽  
Seed Yields ◽  
The Impact ◽  
Growth Indicators

Thermal unit indices have a strong correlation with the phenology, growth and yield of crops and can be effectively used to select suitable crop cultivars for specific environmental conditions especially temperature. In this study, four mustard varieties (viz., 'BARI Sharisha-14', 'BARI Sharisha-15', 'BARI Sharisha-16' and 'Tori-7') were grown in two consecutive growing to assess the impact of thermal unit indices on crop growth and development, and to select the suitable variety for better yield under optimum sowing condition. Thermal unit indices viz., growing degree-day (GDD), helio-thermal units (HTU), phenothermal index (PTI) and heat use efficiency (HUE) were estimated from daily temperature and sunshine hours. Role of GDD on different growth indicators and seed yield (SY) were estimated through association and dependence of the traits. Significant variations in studied genotypes were observed for different traits. Among the studied varieties, 'BARI Sharisha-16' produced higher dry matter and seed yields (1.82 t ha-1) while accumulated maximum GDD at different growth stages. A strong positive association was obtained between GDD and the studied traits. Thermal unit indices had a strong influence in attaining different phenophases and other growth indicators. Therefore, results suggest that those indices could be used for growth prediction; further 'BARI Sharisha-16' is expected to use heat energy more efficiently for increasing the seed yields which indicated that the crop can perform better under global warming scenarios.

scholarly journals How Well Does Consumer-Based Brand Equity Align with Sales-Based Brand Equity and Marketing-Mix Response?

2017 ◽  
Vol 81 (3) ◽  
pp. 1-20 ◽  
Author(s):  
Hannes Datta ◽  
Kusum L. Ailawadi ◽  
Harald J. van Heerde
Keyword(s):  
Brand Equity ◽  
Positive Association ◽  
Marketing Mix ◽  
Consumer Perceptions ◽  
Three Dimensions ◽  
Fourth Dimension ◽  
Share Model ◽  
Academic Researchers ◽  
Strong Positive Association ◽  
The Impact

Brand equity is the differential preference and response to marketing effort that a product obtains because of its brand identification. Brand equity can be measured using either consumer perceptions or sales. Consumer-based brand equity (CBBE) measures what consumers think and feel about the brand, whereas sales-based brand equity (SBBE) is the brand intercept in a choice or market share model. This article studies the extent to which CBBE manifests itself in SBBE and marketing-mix response using ten years of IRI scanner and Brand Asset Valuator data for 290 brands spanning 25 packaged good categories. The authors uncover a fairly strong positive association of SBBE with three dimensions of CBBE—relevance, esteem, and knowledge—but a slight negative correspondence with the fourth dimension, energized differentiation. They also reveal new insights on the category characteristics that moderate the CBBE–SBBE relationship and document a more nuanced association of the CBBE dimensions with response to the major marketing-mix variables than heretofore assumed. The authors discuss implications for academic researchers who predict and test the impact of brand equity, for market researchers who measure it, and for marketers who want to translate their brand equity into marketplace success.

The Impact of Nitrogen Fixers and Phosphate Solubilizing Microbes on Sorghum (Sorghum bicolor) Yield

2020 ◽  
Vol 9 (3) ◽  
pp. 198-208
Author(s):  
V. Vijayalakshmi ◽  
S. Pradeep ◽  
H. Manjunatha ◽  
V. Krishna ◽  
V. Jyothi
Keyword(s):  
Sorghum Bicolor ◽  
Nutrient Uptake ◽  
Growth Yield ◽  
Growth And Yield ◽  
Growth Stages ◽  
Isolation And Identification ◽  
Nitrogen Fixers ◽  
Yield Parameters ◽  
Phosphate Solubilizing ◽  
The Impact

Objective: The inoculants, mainly nitrogen fixers and phosphate solubilizing microbes, have an influence on plant growth attributes. The current study was conducted to assess the fertilizing activity of A. chroocaccum and B. megaterium strains on growth, yield parameters and nutrient uptake of Sorghum bicolor. Methods: The isolation and identification of the nitrogen-fixing bacterium- A. chroocaccum and phosphate solubilizing microbe- B. megaterium and the growth and yield parameters of Sorghum bicolor as well as NPK uptake levels were studied. Results: A. chroocaccum and B. megaterium exhibited the proliferation of microbial population in soil by synergistic interaction with plants, and the application increased the availability of NPK in the soil after harvest of the crop. These beneficial inoculants are also known to help in the uptake of some other nutrients. The maximum beneficial aspects of the plant were noticed in the plants inoculated with 100% Recommended Dose of Fertilizer (RDF)+ A. chroocaccum+ B. megaterium, and the least was noticed in the control plants at all growth stages and at the time of harvest. Conclusion: From this study, it can be concluded that the beneficial effect of A. chroocaccum and B. megaterium is observed in sorghum crop with improved yield and nutrient uptake. Therefore, this species can be used extensively for future inoculation of the sorghum crop for better growth and development and for good returns in an ecological way.

scholarly journals Innovation: The Driving Force for Entrepreneurial Performance among Small Informal Businesses

2021 ◽  
Vol 2 (2) ◽  
Author(s):  
Simbarashe Muparangi ◽  
Forbes Makudza
Keyword(s):  
Product Innovation ◽  
Business Performance ◽  
Innovation Process ◽  
Positive Association ◽  
Process Innovation ◽  
Marketing Innovation ◽  
Strong Positive Association ◽  
Medium Enterprises ◽  
Organisational Factors ◽  
The Impact

The purpose of the study was to assess the impact of innovation on business performance of informal small business traders in Zimbabwe. The Open Theory of Innovation informed the study whilst data for the study was gathered using structured questionnaires where 175 informal small to medium enterprises (SME) offered validated responses. A causal, quantitative approach was assumed and data was analyzed using SPSS 22 software to identify the association, strength and direction of innovation and innovation determinants on SME performance. The results revealed that innovation is determined by product, process, marketing and organisational factors. The study thus found out that product innovation, process innovation and marketing innovation have strong positive association with SME performance (P < 0.05). However, the study found an insignificant association between organisational innovation and SMEs performance. The study thus concluded that for informal SMEs to enhance their performance and graduate from being small entities to large corporates, they should embrace product innovation, process innovation and marketing innovation.

scholarly journals Assessing the Impact of Water Salinization Stress on Biomass Yield of Cardoon Bio-Energetic Crops through Remote Sensing Techniques

Resources ◽  
2020 ◽  
Vol 9 (10) ◽  
pp. 124
Author(s):  
Flavio Borfecchia ◽  
Paola Crinò ◽  
Angelo Correnti ◽  
Anna Farneti ◽  
Luigi De Cecco ◽  
...  
Keyword(s):  
Biomass Yield ◽  
Salt Water ◽  
Growth And Yield ◽  
Bioenergy Crops ◽  
Growth Stages ◽  
Landsat 8 ◽  
Climate Trends ◽  
Biophysical Parameters ◽  
Biometric Data ◽  
The Impact

Various species of cultivated thistle, such as Cynara cardunculus L. (cardoon), exhibit interesting features for industrial biomass production as bioenergy crops, given also their advantageous adaptation capacities to typical Mediterranean climate trends, with noticeable resilience to drought and salinization stresses. The in situ hyperspectral reflectance responses of three genotypes of cardoon plants, irrigated with water at different salinity levels, have been tested for assessing the effects on their biophysical parameters, aiming at improving the biomass yield for bioenergy production, minimizing at same time the environmental impacts and the exploitation of soils and waters resources. The leaf and canopy reflectance hyperspectral signatures, acquired at three different growth stages with biometric measurements, were statistically analyzed (ANOVA, Tukey’s test, graphs), as noise-resilient spectral indices, sensible to different plant features of interest. Their broadband versions, based on the Landsat 8 OLI and Sentinel 2 MSI satellite sensors, were also evaluated in perspective of operative and extensive remote crop monitoring from space. The results highlighted significant differences in some spectral index responses, related to different cardoon genotypes and water salt concentration. The biometric data supported by red-edge indices modelling evidenced the impact of the highest salt water concentration (200 mM/L) on the plant growth and yield.

scholarly journals Improving Performance of Salt-Grown Crops by Exogenous Application of Plant Growth Regulators

Biomolecules ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 788
Author(s):  
Md. Quamruzzaman ◽  
S. M. Nuruzzaman Manik ◽  
Sergey Shabala ◽  
Meixue Zhou
Keyword(s):  
Plant Growth ◽  
Plant Growth Regulators ◽  
Salinity Tolerance ◽  
Growth Regulators ◽  
Growth And Development ◽  
Growth And Yield ◽  
Plant Growth And Development ◽  
Crop Breeding ◽  
Beneficial Effects ◽  
The Impact

Soil salinity is one of the major abiotic stresses restricting plant growth and development. Application of plant growth regulators (PGRs) is a possible practical means for minimizing salinity-induced yield losses, and can be used in addition to or as an alternative to crop breeding for enhancing salinity tolerance. The PGRs auxin, cytokinin, nitric oxide, brassinosteroid, gibberellin, salicylic acid, abscisic acid, jasmonate, and ethylene have been advocated for practical use to improve crop performance and yield under saline conditions. This review summarizes the current knowledge of the effectiveness of various PGRs in ameliorating the detrimental effects of salinity on plant growth and development, and elucidates the physiological and genetic mechanisms underlying this process by linking PGRs with their downstream targets and signal transduction pathways. It is shown that, while each of these PGRs possesses an ability to alter plant ionic and redox homeostasis, the complexity of interactions between various PGRs and their involvement in numerous signaling pathways makes it difficult to establish an unequivocal causal link between PGRs and their downstream effectors mediating plants’ adaptation to salinity. The beneficial effects of PGRs are also strongly dependent on genotype, the timing of application, and the concentration used. The action spectrum of PGRs is also strongly dependent on salinity levels. Taken together, this results in a rather narrow “window” in which the beneficial effects of PGR are observed, hence limiting their practical application (especially under field conditions). It is concluded that, in the light of the above complexity, and also in the context of the cost–benefit analysis, crop breeding for salinity tolerance remains a more reliable avenue for minimizing the impact of salinity on plant growth and yield. Further progress in the field requires more studies on the underlying cell-based mechanisms of interaction between PGRs and membrane transporters mediating plant ion homeostasis.

scholarly journals Aggressiveness of Fusarium Species and Impact of Root Infection on Growth and Yield of Soybeans

2013 ◽  
Vol 103 (8) ◽  
pp. 822-832 ◽  
Author(s):  
María M. Díaz Arias ◽  
Leonor F. Leandro ◽  
Gary P. Munkvold
Keyword(s):  
Image Analysis ◽  
Root Rot ◽  
Fusarium Species ◽  
Morphological Characteristics ◽  
Growth And Yield ◽  
Growth Stages ◽  
Linear Relationships ◽  
Soybean Roots ◽  
The Impact

Fusarium spp. are commonly isolated from soybean roots but the pathogenic activity of most species is poorly documented. Aggressiveness and yield impact of nine species of Fusarium were determined on soybean in greenhouse (50 isolates) and field microplot (19 isolates) experiments. Root rot severity and shoot and root dry weights were compared at growth stages V3 or R1. Root systems were scanned and digital image analysis was conducted; yield was measured in microplots. Disease severity and root morphology impacts varied among and within species. Fusarium graminearum was highly aggressive (root rot severity >90%), followed by F. proliferatum and F. virguliforme. Significant variation in damping-off (20 to 75%) and root rot severity (<20 to >60%) was observed among F. oxysporum isolates. In artificially-infested microplots, root rot severity was low (<25%) and mean yield was not significantly reduced. However, there were significant linear relationships between yield and root symptoms for some isolates. Root morphological characteristics were more consistent indicators of yield loss than root rot severity. This study provides the first characterization of aggressiveness and yield impact of Fusarium root rot species on soybean at different plant stages and introduces root image analysis to assess the impact of root pathogens on soybean.

scholarly journals Phosphorus and Zinc Interaction Influence Leaf Area Index in Fine vs. Coarse Rice (Oryza sativa L) Genotypes in Northwest Pakistan

2016 ◽  
Vol 2 ◽  
Author(s):  
Amanullah , ◽  
Inamullah , ◽  
Zahir Shah ◽  
Shad Khan Khalil
Keyword(s):  
Oryza Sativa ◽  
Leaf Area Index ◽  
Leaf Area ◽  
Growth And Yield ◽  
Growth Stages ◽  
Area Index ◽  
Physiological Maturity ◽  
Rice Genotypes ◽  
The Impact ◽  
Different Growth Stages

Leaf area index (LAI) is a measure of leafiness per unit ground area and denotes the extent of photosynthetic machinery is an important growth and yield-determining factor because it is a major determinant of light interception and transpiration. Phosphorus (P) and zinc (Zn) and rate are the most important factors affecting leaf area index (LAI) of rice(<em>Oryza sativa</em> L.). A field experiment was conducted to assess the impact of phosphorus (0, 40, 80, 120 kg P ha<sup>-1</sup>) and zinc levels (0, 5, 10, 15 kg Zn ha<sup>-1</sup>) on LAI of rice (<em>Oryza sativa</em> L.) genotypes [fine (Basmati-385) and coarse (Fakhr-e-Malakand &amp; Pukhraj)]. The experiment was conducted on farmer field at Batkhela, Malakadnd in Northwest Pakistan during summer 2011 and 2012. When combined over the two years, the data revealed that the highest LAI at three different growth stages (tillering, heading and physiological maturity) was obtained with application of the highest P level (120 kg ha<sup>-1</sup>) being at par with 80 kg P ha<sup>-1</sup>, while the lowest LAI was recorded when P was not applied. Similarly, the highest LAI was obtained with application of the two higher Zn levels (10 and 15 kg Zn ha<sup>-1</sup>), while the lowest LAI was recorded when Zn was not applied. In case of rice genotypes, the highest LAI was obtained from Pukhraj than other two genotypes at all growth stages. The other two rice genotypes (Fakher-e-Malakand and Basmati-385) produced statistically similar LAI at different growth stages. The higher LAI of Pukhraj was attributed to its long and wider leaves that resulted in higher mean single leaf area, leaf area per tiller, per hill and per square meter. The LAI was highest at heading stages than at early (tillering) and later (physiological maturity) growth stages. The increase in LAI was attributed to the increase in tillers number and leaf area hill<sup>-1</sup>. The increase in LAI showed positive impact on crop growth rate, dry matter accumulationand yield. Application of 120 kg P + 10 kg Zn ha<sup>-1</sup> to rice genotype Pukhraj was more beneficial in terms of higher LAI and productivity in the study area.

scholarly journals Responses of Hydroponically Grown Common Bean Fed with Nitrogen-free Nutrient Solution to Root Inoculation with N2-fixing Bacteria

HortScience ◽  
2015 ◽  
Vol 50 (4) ◽  
pp. 597-602 ◽  
Author(s):  
Charis-Konstantina Kontopoulou ◽  
Sofia Giagkou ◽  
Efthalia Stathi ◽  
Dimitrios Savvas ◽  
Pietro P.M. Iannetta
Keyword(s):  
Common Bean ◽  
Nutrient Solution ◽  
Plant Biomass ◽  
Dry Weight ◽  
Growth And Yield ◽  
Limiting Factor ◽  
Growth Stages ◽  
Rhizobium Tropici ◽  
Total N ◽  
The Impact

To date, few attempts have been made to assess the impact of Rhizobium inoculation on N2 fixation and plant yield in soilless cultivations of common bean. In the present study, common bean (P. vulgaris L.) grown on an inert medium (pumice) was inoculated with either Rhizobium tropici CIAT899 or a commercial product containing a mix of N2-fixing bacteria, specifically rhizobia, and Azotobacter sp. The plants treated with both inoculants were supplied with nitrogen (N)-free (0% N) nutrient solution (NS) throughout the cropping period. A third treatment with non-inoculated plants, which were supplied with a standard (100% N) NS was applied as a control. Inoculation with R. tropici significantly increased the total number of root nodules (80 nodules per plant on average) in comparison with the other two treatments (nine nodules per plant on average). The supply of N-free NS restricted markedly both total plant biomass and pod yield, whereas the inoculation with R. tropici mitigated this effect. The aboveground tissues of plants fed with N-free NS contained appreciably less N than those fed with standard solution when they were inoculated with the commercial inoculant (1.7 vs. 29 mg·g−1 dry weight, respectively). The shoot total N concentration 45, 65, and 90 days after transplanting (32, 31, and 29 mg·g−1 dry weight, respectively) was not reduced by the supply of N-free NS when the plants were inoculated with R. tropici. This finding indicates that, at least from the first sampling date onward, the tissue N level was not a limiting factor for growth and yield in plants inoculated with R. tropici. The supply of N-free NS restricted appreciably the potassium (K), magnesium (Mg), and zinc (Zn) levels in the aboveground plant biomass, regardless of inoculation treatment. The impaired growth and yield in plants fed with N-free NS and inoculated with R. tropici is ascribed to both a N shortage at early growth stages and a reduced K+ uptake aimed at electrochemically balancing the anion-to-cation uptake ratio under conditions of no external NO3– supply.

Impact of Employer Branding on Job Engagement and Organizational Commitment in Indian IT Sector

2019 ◽  
Vol 8 (3) ◽  
pp. 1-17 ◽  
Author(s):  
Geeta Rana ◽  
Ravindra Sharma ◽  
S.P Singh ◽  
Vipul Jain
Keyword(s):  
Organizational Culture ◽  
Organizational Commitment ◽  
Empirical Investigation ◽  
Positive Association ◽  
Mediating Effect ◽  
Job Engagement ◽  
Employer Branding ◽  
Strong Positive Association ◽  
The Impact

This article seeks to empirically examine the impact of employee branding on job engagement and organizational commitment in Indian IT companies. The data was collected from 250 employees employed in various companies in Indian IT companies. Results revealed a strong positive association between employer branding and job engagement, job engagement and organizational commitment, and employer branding and organizational commitment. Further, job engagement showed a partial mediating effect on the link between employer branding and organizational commitment. This is the first empirical investigation to simultaneously examine associations among employer branding, job engagement, and organizational commitment. Practitioners could, with such knowledge, incorporate the most influential dimensions of employer branding in organizational culture.

scholarly journals The impact of mental vulnerability on the relationship between cardiovascular disease and depression

2020 ◽  
Vol 63 (1) ◽  
Author(s):  
Terese Sara Høj Jørgensen ◽  
Marie Kim Wium-Andersen ◽  
Martin Balslev Jørgensen ◽  
Merete Osler
Keyword(s):  
Cardiovascular Disease ◽  
Positive Association ◽  
Strong Relationship ◽  
Background Population ◽  
Random Samples ◽  
Cox Proportional Hazard Models ◽  
Additive Hazard Model ◽  
Strong Positive Association ◽  
The Impact ◽  
The Relationship

Abstract Background. The mechanisms linking cardiovascular disease (CVD) and depression are still not established. We investigated the impact of mental vulnerability on the relationship between CVD and depression. Methods. A total of 19,856 individuals from five cohorts of random samples of the background population in Copenhagen were followed from baseline (1983–2011) until 2017 in Danish registries. Additive hazard and Cox proportional hazard models were used to analyze the effects of confounding by mental vulnerability as well as interactions between mental vulnerability and CVD on the risk of depression. Results. During follow-up, 15.3% developed CVD, while 18.1% experienced depression. A strong positive association between CVD and depression (hazard ratio: 3.60 [95% confidence intervals (CI): 3.30; 3.92]) corresponding to 35.4 (95% CI: 31.7; 39.1) additional cases per 1,000 person-years was only slightly attenuated after adjustment for mental vulnerability in addition to other confounders. Synergistic interaction between CVD and mental vulnerability was identified in the additive hazard model. Due to interaction between CVD and mental vulnerability, CVD was associated with 50.9 more cases of depression per 1,000 person-years among individuals with high mental vulnerability compared with individuals with low mental vulnerability. Conclusions. Mental vulnerability did not explain the strong relationship between CVD and depression. CVD was associated with additional cases of depression among individuals with higher mental vulnerability indicating that this group holds the greatest potential for intervention, for example, in rehabilitation settings.

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