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Morphological and physicochemical characterisation of date palm cultivars from Ghardaïa (Southeast Algeria)
No full textThe date palm (Phoenix
dactylifera L.) is an economically
important species vital for food security in
Algeria, especially for the southern
population. There are an estimated 18
million palm trees in Algeria with more
than 1000 cultivars. This poorly known
resource is unfortunately threatened with
extinction. This work was carried out on
24 date palm cultivars, studying their
morphological and physicochemical
characteristics, such as the weight, length
and diameter of the date and the seed, and
the consistency, moisture, pH and sugar
content of the dates. Ten homogeneous
palm trees were selected for each cultivar.
From each tree, we collected 40 fruits
devoid of their calices (4-5 fruits per
bunch), at different heights and
orientations in each bunch. The results
show that the morphological and
physicochemical characteristics vary from
one cultivar to another. The dates of
most cultivars have a combination of
good and bad characteristics. The cultivar
Tmar-Bousbaa has very high values for
the characteristics weight, length, and
diameter of the date and seed (23.16 g,
4.90 cm, 2.85 cm, and 1.53 g, 2.74 cm,
0.94 cm, respectively). The cultivars
Takarnait and Halwa have high acidity,
varying between 1.08 and 1.92 g/kg of
fresh material and a pH of less than 5.46.
The cultivar Bouarous has a low sugar
content: less than 63%. Principal
component analysis (PCA) was used to
analyse the whole dataset, revealing high
variability among the cultivars. Thus, out
of 14 characteristics investigated, ten have
been shown to be strong discriminating
factors
Relationship between stomatal conductance and drought susceptibility index in alfalfa (Medicago sativa L.)
No full textGlobal climate change evidentiate an increase in drought frequencies. In this context the strategies for sustainable use of
water and drought resistance improvement based on the physiological traits are important and physiological approaches
should be integrated in conventional breeding. Research was performed on 16 alfalfa genotypes under vegetation house
conditions at two watering levels and field analyses. The objective was to identify the available genetic variation and to
establish efficient physiologycall traits for testing which might positively influence alfalfa performance under drought
conditions. Our research were focused on stomatal conductance and chlorophyll content. There is a very significant
negative correlation between the drought sensitivity index and the stomatal conductance of alfalfa genotypes sown for
fodder (r = - 0.70***). This means that genotypes with a higher stomatal conductance were more productive (low
drought sensitivity index means better drought adaptability, so higher production) indicating that stomatal resistance has
a very significant impact on production under stress conditions. There is a very significant positive correlation between
the chlorophyll content and the stomatal conductance of alfalfa genotypes from the comparative culture sown for fodder
(r = 0.79***), which shows that stomatal closure is the main factor limiting photosynthetic activity under water limiting
conditions
Risk management and insurance premiums for crops, animals and plants: framework, influence, financial impact, forecasts
No full textThis study aims to analyze European risk management measures for producers in the plant and livestock sector and their
influence on farmers. In recent years, the National Rural Development Program NRDP has included Measure 17.1 -
Insurance premiums for crops, animals and plants. This allows agricultural producers to claim a partial incentive of the
value of the insurance premium paid to the insurance company.As is well known, agricultural production is deeply
dependent on climate change, which requires farmers to have easier access to insurance through which to partially
offset losses from natural disasters or other adverse events. Such risk management schemes must be able to cover, in
addition to losses caused by adverse climatic events (floods, droughts, soil erosion, etc.) also those caused by animal
and plant diseases, pest infestations and incidents of environment (toxic waste discharges, etc.), providing overall
protection to farmers who face interruptions of activity and / or loss of production due to such incidents. Among the
new risk management tools provided by Measure 17, Romania has chosen to promote the stimulation of farmers'
involvement in risk prevention and management schemes through support for the insurance premium. In 2020, the
Funding Agency for Rural Investments allocated 15 million Euros, of which farmers attracted 10,807,760.84 Euros. In
2021, the institution made available the amount of 31.2 million Euros. At the end of September 2021, the session is
open and reveals a wide popularity. A number of 3,622 applications are submitted with a total value of 7,991,285.94
Euro. The paper aims to analyze the concrete situation of some farmers benefiting from this scheme in 2020 which are
examples to follow. The dimensions of the areas allocated to the crops are analyzed in correlation with the insurance
premiums paid, partially reimbursed and with the insured values in case of damage
Studies on communication policy at SC Alcovin, Tulcea
No full textIn order to be able to adapt to the new challenges on the wine market, the success of a company depends on knowing and
adopting key elements of a communication policy anchored in a strategic marketing process. This paperwork combines
theoretical and practical elements, the case study being conducted at SC Alcovin Macin, Tulcea. The definition of
marketing communication within the marketing field, is that this concept represents “a strategic process used to plan,
develop, execute and evaluate, over time, coordinated, measurable brand communication programs and persuasive,
consumer-oriented, prospectus and other relevant target segments, internal and external”. There are four stages in the
development of marketing communication. The entire marketing policy should support brand awareness and contribute
to the positive feeling towards it. The team of authors of this paperwork tried to describe and analyze the elements of the
communication policy (financial and promotional) used in general on the wine market and also in particular within SC
Alcovin SRL. We consider that the communication policy approached in a wine entity such as the one from our case
study, can influence the behavior of the target audience. The pillars will be based on well-defined objectives as well as
correctly established and communicated financial resources. In the context of globalization, the increase of competition
on the wine market determines the establishment and use of a communication policy based on the most solid, efficient,
innovative and high-performance strategic techniques. A good communication policy will take into account the 6 key
points presented in the paper. We expect that within the future researches we will be able to extend the study to two
wineries, one in Iasi County and the other in the Republic of Moldova
Impactul haldelor de deșeuri industriale asupra mediului din zona Moldovei
Get PDFIn the area of Moldova there are a number of industrial warehouses with a special impact on the environment due to poor management of the maintenance process. Landfills come from steel plants, mining, power plants, industrial products factories, etc. Representative in this case are the waste dump from the Galati steel plant, the tailings dumps from the mining operations in the north of the Eastern Carpathians, the ash dump from CET Holboca Iași, etc. The paper summarizes a series of research on the impact on the environment and in particular on surface and groundwater by these polluting objectives
Novel Mg-0.5Ca-xMn biodegradable alloys intended for orthopedic application: an in vitro and in vivo study
Get PDFMg-based biodegradable materials, used for medical applications, have been extensively
studied in the past decades. The in vitro cytocompatibility study showed that the proliferation and viability (as assessed by quantitative MTT-assay—3-(4,5-dimethyltiazol-2-yl)-2,5-diphenyl tetrazolium
bromide) were not negatively affected with time by the addition of Mn as an alloying element. In
this sense, it should be put forward that the studied alloys don’t have a cytotoxic effect according to
the standard ISO 10993-5, i.e., the level of the cells’ viability (cultured with the studied experimental
alloys) attained both after 1 day and 5 days was over 82% (i.e., 82, 43–89, 65%). Furthermore, the
fibroblastic cells showed variable morphology (evidenced by fluorescence microscopy) related to
the alloy sample’s proximity (i.e., related to the variation on the Ca, Mg, and Mn ionic concentration as a result of alloy degradation). It should be mentioned that the cells presented a polygonal
morphology with large cytoplasmic processes in the vicinity of the alloy’s samples, and a bipolar
morphology in the remote region of the wells. Moreover, the in vitro results seem to indicate that
only 0.5% Mn is sufficient to improve the chemical stability, and thus the cytocompatibility; from
this point of view, it could provide some flexibility in choosing the right alloy for a specific medical
application, depending on the specific parameters of each alloy, such as its mechanical properties
and corrosion resistance. In order to assess the in vivo compatibility of each concentration of alloy,
the pieces were implanted in four rats, in two distinct body regions, i.e., the lumbar and thigh. The
body’s reaction was followed over time, 60 days, both by general clinical examinations considering
macroscopic changes, and by laboratory examinations, which revealed macroscopic and microscopic
changes using X-rays, CT(Computed Tomography), histology exams and SEM (Scanning Electron
Microscopy). In both anatomical regions, for each of the tested alloys, deformations were observed,
i.e., a local reaction of different intensities, starting the day after surgery. The release of hydrogen
gas that forms during Mg alloy degradation occurred immediately after implantation in all five of
the groups examined, which did not affect the normal functionality of the tissues surrounding the
implants. Imaging examinations (radiological and CT) revealed the presence of the alloy and the
volume of hydrogen gas in the lumbar and femoral region in varying amounts. The biodegradable
alloys in the Mg-Ca-Mn system have great potential to be used in orthopedic applications
Perception of consumers and producers on milk traceability supply chain
No full textFood traceability (FT) in is an important tool for reducing the occurrence of foodborne diseases in the current context of
a continuously growing volume and movement of food. The aim of the research was to determine the perception of
consumers and producers regarding FT, the impact on purchase / sale and loyalty to traceable food products (FTP). Thus,
a survey was conducted on the milk supply chain in Neamț County, Romania with two questionnaires: for consumers and
for producers. The TwoStep Cluster analysis allowed the establishment of 2 clusters for consumers and 2 for producers.
Cluster 1 consumers (40.6%) priority: rural area, between 30 and 60 years old; secondary education, women are informed
about FT. They consider that FTs are 10% more expensive than non-traceable products and traceability is a formality.
Cluster 2 consumers (34.8%) priority: urban environment, with secondary education, men, well informed about FT and
are willing to buy for food safety even if the price would increase by 20%. Cluster 1 producers (61.1%) priority: rural
area, secondary education, information on FT at medium level and appreciate that traceability is expensive and the
information provided can reduce the competitive advantage and increase taxation. Cluster 2 producers (38.9%) priority:
rural area, with secondary education, women who have above average information about FT consider that FT allows the
legal assurance of their own activity and can determine the increase of sales
Particularități ale creșterii tubului polinic la Tulipa gesneriana L.
Get PDFBuilding and growing the pollen tube are essential aspects of pollen biology. Pollen tube is a strategy for fertilizing siphonogamous plants by delivering immobile male gametes to the oosphere and central cell of embryonic sac, so that male gametes do not come into contact with external environment. The optimal length of the pollen tube is correlated with length of pistil that must pass through to achieve fertilization. The present study highlights the building and growth of tulip pollen tube in different environmental conditions. Environmental conditions differed in type and concentration of carbohydrates in the nutrient mediums. Two categories of mediums were created: with sucrose and with glucose. Tulip pollen was monitored for 120 hours. It has been shown that 5% sucrose in medium is more efficient than glucose, ensuring growth of the longest pollen tubes reaching 10000 μm. Research has further demonstrated viability of pollen tubes for 120 hours
Microbiological research on the determination of antibioticosensitivity of pathogens in abcesses of slaughtered pigs
No full textThe scientific research reflected in this study aimed to study the behaviors of the sensitivity of some bacterial species
highlighted by the abscesses of pigs slaughtered against antibiotics and the interpretation of the microbiological aspects
that define them. The antibiogram results of microbial strains isolated from samples of Escherichia coli, Staphylococcus
aureus and Streptococcus pyogenes abscesses were evaluated in antibiotic substances, determining various sizes of
susceptibility areas
Study of milk production indices of Bălțată românească exploited in farms in Neamț county
No full textIn this paper we analyzed the milk production indices, for normal lactation (305 days), on the first two lactations of
Spotted Romanian cattle breed in two farms in Neamț County. To aim this, we used data from the Association of Cattle
Breeders from Mureș County accredited for performing our own performance control (CPP) as well as data from the
Genealogical Register. For the analysis of the productive performances, statistical processing of the primary data
regarding the average value and the variability of the milk production indices for 4 characters was carried out, as
follows: length of normal lactation (days), quantity of milk per normal lactation (kg), percentage of fat, and percentage
of milk protein. The studied farms were coded with Arabic numerals: darm 1- I.I Ciucalău Aurelia Vasilica, and farm 2
- P.F.A. Pintea Ionela. The best productive performances were registered in farm 1, where the average milk production
for the first lactation was 5967.80 kg, the average value of the fat percent was 4.08%, and the average value of the
protein percent was 3.26%. At the second lactation, the average milk production was 5012.89 kg, the average value of
the fat percent was 4.05%, and the average value of the protein percent was 3.31%. In the first lactation the average
milk production per normal lactation was 5967.80 kg, but it decreased in the second lactation to 5012.89 kg