scholarly journals Addressing the Role of Landraces in the Sustainability of Mediterranean Agroecosystems

2019 ◽  
Vol 11 (21) ◽  
pp. 6029 ◽  
Author(s):  
Guiomar Carranza-Gallego ◽  
Gloria I. Guzmán ◽  
Roberto Garcia-Ruíz ◽  
Manuel González de Molina ◽  
Eduardo Aguilera
Keyword(s):  
Organic Farming ◽  
Genetic Material ◽  
Grain Protein Content ◽  
Wheat Varieties ◽  
Conventional Agriculture ◽  
Organic Farm ◽  
Positive Effects ◽  
Rainfed Conditions ◽  
Wheat Landraces

Wheat yields are predicted to decrease over the next decades due to climate change (CC). Mediterranean regions are characterized by low soil fertility and stressful conditions that limit the effect of technological improvements on increasing yield gains, while worsening the negative CC impacts. Additionally, organic farming (OF) lacks specifically adapted genetic material. Accordingly, there is a need to search for varieties adapted to these conditions and whose cultivation may help semi-arid agroecosystems sustainability, focusing on specific agronomic and functional traits. To this purpose, wheat landraces and modern wheat varieties were evaluated under Mediterranean rainfed conditions during three growing seasons under contrasting situations: A conventional farm and an organic farm. Results regarding straw production, weed biomass and biodiversity, and grain N concentration suggest that the cultivation of landraces under Mediterranean rainfed conditions can enhance agroecosystem sustainability through positive effects on ecosystem services such as soil quality, functional biodiversity, or grain protein content, without significant reductions in grain yield. Results highlight the relevant role of wheat landraces as genetic resources for the development of cultivars adapted to Mediterranean agroecosystems conditions, especially for organic farming, but also for conventional agriculture.

scholarly journals Financial health of agricultural enterprises in the organic farming sector

2011 ◽  
Vol 59 (7) ◽  
pp. 91-96 ◽  
Author(s):  
Ivana Brožová
Keyword(s):  
Organic Farming ◽  
Financial Indicators ◽  
Financial Health ◽  
Organic Farms ◽  
Conventional Agriculture ◽  
Agricultural Enterprises ◽  
Average Value ◽  
Organic Farm ◽  
The Individual ◽  
Legal Entities

The present research was aimed at evaluating the economic performance of organic farm enterprises (legal entities) in the Czech Republic on the basis of their production base and financial health. The evaluation was carried out by means of specific financial indicators. The results recorded in the organic farming sector were confronted with those of the conventional agriculture. It stemmed from the analysis that conventionally farming legal entities, as opposed to the organically farming ones, tend to have higher average assets per hectare of farmland. Secondly, as for the structure of assets, fixed assets prevail substantially over current assets. Organic farms, on the contrary, have a significantly higher average value of external financial resources per hectare of farmland. In order to evaluate the financial health of organic farms, their economic results were used; firstly in absolute value (including per hectare calculation) and then within the individual ratios. The analysis showed that 84.4 % farms of the sample were profitable as long as subsidies were included in the yields. While excluding subsidies from the calculations, an overwhelming majority of enterprises (95.3 %) recorded a loss. Comparing the per hectare economic results, higher average profit rates were recorded for organic farms. Furthermore, financial health of the enterprises was analyzed by means of selected indicator ratios. Concrete results, including the respective commentaries, can be found in the present paper too.

scholarly journals The Transition of the Agro-Food System: Lessons from Organic Farming in the Lisbon Metropolitan Area

2021 ◽  
Vol 13 (17) ◽  
pp. 9495
Author(s):  
Isabel Salavisa ◽  
Maria Fátima Ferreiro ◽  
Sofia Bizarro
Keyword(s):  
Organic Farming ◽  
Metropolitan Area ◽  
Food System ◽  
Conventional Agriculture ◽  
Dual Nature ◽  
Organic Farmers ◽  
Speed Up ◽  
Policy Measures ◽  
Development Paths

The paper presents a study on the transition of the agro-food system in Portugal through the analysis of case studies in the Lisbon Metropolitan Area. The theoretical framework draws on the literature on the transition of sociotechnical systems, taking into account the multidimensional nature of the food system (ecological, environmental, socioeconomic, and cultural). Social and institutional innovation, technological innovation, public policy impact, and the interactions with the dominant regime are the main dimensions guiding the study of the organic farming initiatives. We identified the supportive policy measures, the role of producers’ networks, the relevance of values, and the obstacles and challenges these initiatives face in their growth process. While the results are in line with the theoretical debate, they also provide new insights on the selection environment, the networks’ dual nature and the existence of different development paths within the organic food niche. One of the main conclusions is that organic farmers perceive the regulatory framework as unfair relative to that of conventional agriculture. Therefore, it is crucial to change this framework to speed up the transition of the agro-food system in Portugal and at the European level.

On the Methodology of Cartel agreements analysis

2014 ◽  
pp. 53-64 ◽  
Author(s):  
E. Andreyashchenko ◽  
A. Zazdravnykh
Keyword(s):  
Economic Models ◽  
Social Consequences ◽  
Positive Effects ◽  
Industrial Markets

This article is an attempt of summarizing key economic approaches to cartel agreements analysis, its stability, ways of estimating social consequences of cartel agreements. It is alleged that the traditional way of understanding the cartels’ role as completely negative is not accurate; this type of inter-corporate agreements may also bring positive effects on industrial markets. Typical limits of analytical apparatus, contradictions that appear while interpreting results of specific economic models are also represented in the article, as well as substantiation of a discrete role of pricing factor within the analysis of anti-competitive agreements.

Peranan Negara dalam Liberalisasi Ekonomi Vietnam: Analisis Terhadap Dasar Doi Moi 1986

2020 ◽  
Author(s):  
Muhamad Helmy Sabtu ◽  
◽  
Khairul Azman Mohamad Suhaimy ◽  
Nurul Aimi Razali
Keyword(s):  
Gender Equality ◽  
Foreign Investment ◽  
Economic Performance ◽  
Level Of Education ◽  
Positive Effects ◽  
Doi Moi ◽  
The People ◽  
Effective Policy ◽  
Economic Landscape

This article analyses the role of state in the policy of economic liberalisation in Vietnam. Doi Moi, which was launched in 1986, is a very influential and effective policy in changing the socio-economic landscape of the people in the country. The results of this study prove that there are positive effects on the increase of foreign investment inflows, the eradication of starvation and unruly poverty, the increase of level of education, the improvement of gender equality and women's rights as well as the sustainability of the environment after Doi Moi is implemented. Through Doi Moi, Vietnam is moving towards a developing country status with good economic performance both at the Southeast Asian and global.

scholarly journals Innovation Capabilities and the Performance of Start-Ups in Korea: The Role of Government Support Policies

2021 ◽  
Vol 13 (11) ◽  
pp. 6009
Author(s):  
Se-Kyoung Choi ◽  
Sangyun Han ◽  
Kyu-Tae Kwak
Keyword(s):  
Firm Performance ◽  
Financial Support ◽  
Political Support ◽  
Sustainable Growth ◽  
Government Support ◽  
Role Of Government ◽  
Positive Effects ◽  
Start Up ◽  
Start Ups

What kind of capacity is needed to improve the performance of start-ups? How effective are government support policies in improving start-up performance? Start-ups are critical firm group for ensuring the prospective and sustainable growth of an economy, and thus many countries’ governments have established support policies and they are likely to engage more widely in forward-looking political support activities to ensure further growth and expansion. In this paper, the effect of innovation capabilities and government support policies on start-up performance is examined. We used an unbalanced panel data analysis with a random effect generalized least squares. We investigated the effect of government support policies on 4368 Korean start-ups. The findings indicated that technology and knowledge capabilities had positive effects on the sales performance of start-ups, and government financial support positively affected the relationship between knowledge capability and firm performance. However, when government financial support increased, marketing capability was negatively associated with firm performance. These results demonstrate the significant role of government financial support, including its crowding in but also its crowding out effect. Practical implications: To be more effective, governments should employ innovation-driven entrepreneurship policy approaches to support start-ups. To improve their performance, start-ups need to increase their technology and knowledge capabilities. This study extends recent efforts to understand more fully the effect of government support policies on start-ups differing in their technology, knowledge, and marketing capabilities.

scholarly journals Morphological and Physiological Root Traits and Their Relationship with Nitrogen Uptake in Wheat Varieties Released from 1915 to 2013

Agronomy ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1149
Author(s):  
Guglielmo Puccio ◽  
Rosolino Ingraffia ◽  
Dario Giambalvo ◽  
Gaetano Amato ◽  
Alfonso S. Frenda
Keyword(s):  
Durum Wheat ◽  
Root System ◽  
N Uptake ◽  
Specific Root Length ◽  
Root Traits ◽  
Wheat Breeding ◽  
N Availability ◽  
Wheat Varieties ◽  
Uptake Efficiency ◽  
Positive Effects

Identifying genotypes with a greater ability to absorb nitrogen (N) may be important to reducing N loss in the environment and improving the sustainability of agricultural systems. This study extends the knowledge of variability among wheat genotypes in terms of morphological or physiological root traits, N uptake under conditions of low soil N availability, and in the amount and rapidity of the use of N supplied with fertilizer. Nine genotypes of durum wheat were chosen for their different morpho-phenological characteristics and year of their release. The isotopic tracer 15N was used to measure the fertilizer N uptake efficiency. The results show that durum wheat breeding did not have univocal effects on the characteristics of the root system (weight, length, specific root length, etc.) or N uptake capacity. The differences in N uptake among the studied genotypes when grown in conditions of low N availability appear to be related more to differences in uptake efficiency per unit of weight and length of the root system than to differences in the morphological root traits. The differences among the genotypes in the speed and the ability to take advantage of the greater N availability, determined by N fertilization, appear to a certain extent to be related to the development of the root system and the photosynthesizing area. This study highlights some variability within the species in terms of the development, distribution, and efficiency of the root system, which suggests that there may be sufficient grounds for improving these traits with positive effects in terms of adaptability to difficult environments and resilience to climate change.

scholarly journals Organic Farming Increases the Technical Efficiency of Olive Farms in Italy

Agriculture ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 209
Author(s):  
Maria Raimondo ◽  
Francesco Caracciolo ◽  
Concetta Nazzaro ◽  
Giuseppe Marotta
Keyword(s):  
Organic Farming ◽  
Technical Efficiency ◽  
Stochastic Frontier ◽  
Farming System ◽  
Positive Role ◽  
Conventional Agriculture ◽  
Direct Sales ◽  
Organic Farming System ◽  
The Impact

While there is growing recognition of the positive role played by organic farming in the reduction of the negative externalities due to conventional agriculture, there is uncertainty about the effect of the latter on the economic performance of the farms. In this scenario, the present paper aims at investigating the effect of organic farming on technical efficiency in Italian olive farms. A cross-section dataset was analyzed through the stochastic frontier function, where the adoption of organic farming was explicitly modeled. Then, to obtain an unbiased estimate of the impact of organic farming on technical efficiency, a propensity score matching method was implemented. The findings reveal that organic farming increases technical efficiency in Italian olive farms by approximately 10%. The highest impact of organic farming is observed in small farms. As for the propensity to become organic, we found that the production and the direct sales of a higher quality of gross marketable output, as well as the intensity of labor and machines, increase the probability to adopt organic farming. Conversely, farm localization, the availability of family labor, and financial capital discourage conversion to the organic farming system.

scholarly journals Horizontal Gene Transfer Involving Chloroplasts

2021 ◽  
Vol 22 (9) ◽  
pp. 4484
Author(s):  
Ewa Filip ◽  
Lidia Skuza
Keyword(s):  
Gene Transfer ◽  
Horizontal Gene Transfer ◽  
Driving Force ◽  
Genetic Material ◽  
Adaptive Significance ◽  
Chloroplast Genomes ◽  
Organelle Genomes ◽  
Number Of Genes ◽  
Cellular Compartments

Horizontal gene transfer (HGT)- is defined as the acquisition of genetic material from another organism. However, recent findings indicate a possible role of HGT in the acquisition of traits with adaptive significance, suggesting that HGT is an important driving force in the evolution of eukaryotes as well as prokaryotes. It has been noted that, in eukaryotes, HGT is more prevalent than originally thought. Mitochondria and chloroplasts lost a large number of genes after their respective endosymbiotic events occurred. Even after this major content loss, organelle genomes still continue to lose their own genes. Many of these are subsequently acquired by intracellular gene transfer from the original plastid. The aim of our review was to elucidate the role of chloroplasts in the transfer of genes. This review also explores gene transfer involving mitochondrial and nuclear genomes, though recent studies indicate that chloroplast genomes are far more active in HGT as compared to these other two DNA-containing cellular compartments.

scholarly journals The Moderating Impact of Attending Services on the Effect of Older Adults’ Discrimination Experiences on Loneliness

2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 323-323
Author(s):  
Dahee Kim ◽  
Kyuho Lee
Keyword(s):  
Older Adults ◽  
Perceived Discrimination ◽  
Well Being ◽  
Religious Community ◽  
Religious Activities ◽  
Positive Effects ◽  
Religious Behaviors ◽  
Religious Services ◽  
The Impact

Abstract Research has shown that perceived discriminations impact physical and mental health in later life. Discrimination experiences could make older adults consider themselves as a social misfit and decrease their social interactions, which finally increases their loneliness. Religious behaviors has been reported as a key factor of a lower sense of isolation. Considering that religious behaviors provide opportunities to engage in more extensive social networks and have supportive social ties with community members, attending religious services might decrease the impact of older adults’ perceived discrimination on loneliness. The current research aims to examine the moderating role of religious services attendance in the association between older adults’ perceived discrimination and loneliness. We used data of 4,488 adults aged 50 to 80 (M=66.27, SD=10.15) from the Health and Retirement Study (HRS) collected in 2012 and 2014. Linear regression analysis was performed to investigate whether older adults’ religious service attendance might decrease the impact of their perceived discriminations in daily life on the level of loneliness. The results indicated that more perceived discriminations older adults face on a daily basis were significantly associated with higher levels of loneliness. However, participants who frequently attended religious services showed a lower impact of perceived discriminations on their loneliness. These findings highlight the positive effects of engaging in religious activities on discriminated older adults’ social well-being. These findings also emphasize the role of the religious community as a social resource for socially marginalized older adults.

scholarly journals Sperm Cryopreservation in American Flamingo (Phoenicopterus Ruber): Influence of Cryoprotectants and Seminal Plasma Removal

Animals ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 203
Author(s):  
María Gemma Millán de la Blanca ◽  
Eva Martínez-Nevado ◽  
Cristina Castaño ◽  
Juncal García ◽  
Berenice Bernal ◽  
...  
Keyword(s):  
Seminal Plasma ◽  
Genetic Material ◽  
First Year ◽  
Sperm Cryopreservation ◽  
Straight Line ◽  
The Family ◽  
Second Year ◽  
American Flamingo ◽  
Phoenicopterus Ruber

The American flamingo is a useful model for the development of successful semen cryopreservation procedures to be applied to threatened related species from the family Phoenicopteridae, and to permit genetic material banking. Current study sought to develop effective sperm cryopreservation protocols through examining the influences of two permeating cryoprotectants and the seminal plasma removal. During two consecutive years (April), semen samples were collected and frozen from American flamingos. In the first year, the effect of two permeating cryoprotectants, DMA (dimethylacetamide) (6%) or Me2SO (dimethylsulphoxide) (8%), on frozen–thawed sperm variables were compared in 21 males. No differences were seen between DMA and Me2SO for sperm motility, sperm viability, and DNA fragmentation after thawing. In the second year, the role of seminal plasma on sperm cryoresistance was investigated in 31 flamingos. Sperm samples were cryopreserved with and without seminal plasma, using Me2SO (8%) as a cryoprotectant. The results showed that samples with seminal plasma had higher values than samples without seminal plasma for the following sperm variables: Straight line velocity (22.40 µm/s vs. 16.64 µm/s), wobble (75.83% vs. 69.40%), (p < 0.05), linearity (62.73% vs. 52.01%) and straightness (82.38% vs. 73.79%) (p < 0.01); but acrosome integrity was lower (55.56% vs. 66.88%) (p < 0.05). The cryoresistance ratio (CR) was greater in samples frozen with seminal plasma than without seminal plasma for CR-progressive motility (138.72 vs. 54.59), CR-curvilinear velocity (105.98 vs. 89.32), CR-straight line velocity (152.77 vs. 112.58), CR-average path velocity (122.48 vs. 98.12), CR-wobble (111.75 vs. 102.04) (p < 0.05), CR-linearity (139.41 vs. 113.18), and CR-straightness (124.02 vs. 109.97) (p < 0.01). This research demonstrated that there were not differences between Me2SO and DMA to successful freezing sperm of flamingos; seminal plasma removal did not provide a benefit for sperm cryopreservation.

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