63 research outputs found
Effect of Cutting Size and Basal Heat on Rooting of Micromeria fruticulosa Stem Cuttings
Micromeria fruticulosa (Bertol.) Grande is a small pulviniform shrub, belonging to the Labiates, and characterized by
twisted stems and pink-purple flowers. Endemic to Campania and Sicily (Italy), M. fruticulosa grows from sea level to 600 m
altitude. This specie might be considered an excellent native plant for landscape purposes in Mediterranean areas because of its long flowering period, extending from November to June, and its tolerance to heat and drought. The exploitation of wild
plants for ornamental purposes implies knowledge on the factors influencing the propagation methods. Root development of
stem cuttings of M. fruticulosa was investigated in relation to basal heat and cutting size. Softwood terminal cuttings of a clone grown in Sicily were trimmed to two sizes: short (3 cm) or long (6 cm) length. Propagation was performed in unheated
greenhouse covered with clear polyethylene and external 70% shade-cloth. To verify the rooting response to basal heat, half of the cuttings were placed on a basal heated bench (22 ± 2 °C constant temperature) while the remaining were placed on an unheated bench. Acclimatized rooted cuttings were thereafter transplanted into each plastic pot (diameter 16 cm). Plants were thereafter transplanted in the open field and were evaluated for their ornamental value. Basal heat promoted earlier rooting and positively affected adventitious root formation. Six cm long cuttings exposed to basal heat exhibited the best development in terms of number and length of adventitious roots. Flowering plants derived from 6 cm long cuttings exposed to basal heat showed the highest number of flowering branches and flowers per plant
Improved Propagation and Growing Techniques for Oleander Nursery Production
In the first trial, we examined rooting of stem cuttings in relation to number of nodes and indole-3-butyric acid (IBA) treatment in several Nerium oleander clones grown in Sicily. In a second trial, we tested the effect of different forcing dates and shading on oleander plants for gardens and natural landscapes. Three- and four-node cuttings, ranging in length from 10 to 14 cm, were significantly superior to two-node cuttings (8â10 cm long) in terms of rooting percentage and number of roots per cutting. The application of IBA improved rooting percentage and root number as compared to untreated control. Irrespective of IBA, rooting percentages ranged from 94% in clone 1 to 52% in clone 4. Shaded plants forced in October were significantly higher than those forced in November and in December. Beginning of flowering was delayed in unforced plants. Plants forced in October flowered significantly sooner (first decade of March) than unforced ones (first decade of May) and reached complete flowering almost two months earlier (last week of March).Shading had little effect on plants forced in October and in November as compared to unshaded plants in terms of start of flowering, but it slightly hastened beginning of flowering of December forced plants as compared to their unshaded counterparts
Soil Solarization and Calcium Cyanamide Affect Plant Vigor, Yield, Nutritional Traits, and Nutraceutical Compounds of Strawberry Grown in a Protected Cultivation System
Soil solarization is a hydrothermal procedure of disinfesting soil of soilborne diseases and pests. Solarization can be combined with many other chemical or non-chemical alternatives to afford integrated pest and diseases management or improve plant yield. Calcium cyanamide (CaCN2) is a fertilizer used in agriculture sector and is also effective in suppressing soilborne pathogens. The present study assessed the influences of different pre-plant CaCN2 dosages on strawberry grown on solarized or non-solarized soil. Soil solarization and 500 kg haâ1 CaCN2 significantly increased early marketable yield by 105.3%, total marketable yield by 53.0% and firmness by 3.0%, respectively compared with the control (no solarization Ă 0 kg haâ1 of CaCN2). Exposing solarized plots to CaCN2 at 1000 kg haâ1 significantly increased fruit ascorbic acid content by 77.5% and phenolic content by 13.3% compared with fruits from control plants. Overall, plants grown on solarized soil performed better than those cultivated on no-solarized plots. Plants grown on soil treated with a dosage of 500 or 1000 kg haâ1 CaCN2 increased plant height, number of shoots plantâ1, number of leaves plantâ1, root collar diameter, plant visual quality, anthocyanins, and antioxidant capacity compared to control plants. Fruits from plants grown on soil exposed to CaCN2 with a dosage of 500 and 1000 kg haâ1 showed a lower N fruit content (5.4 and 19.5%, respectively) than control plants (non-treated control)
Prvi nalaz plavog raka Callinectes sapidus (Crustacea, Decapoda, Portunidae) u srediĆĄnjem i juĆŸnom Tirenskom moru
Four individuals of the non-indigenous blue crab, Callinectes sapidus Rathbun, 1896 (Crustacea, Decapoda, Portunidae) were collected during commercial trammel net operations in fall 2019 and winter 2020 along the coast of NW Sicily. The crabs were collected in very shallow waters on a sandy bottom close to the coast. Although blue crabs are now widespread along most eastern, western and northern Mediterranean coasts, this is the first record of this species from the central and southern Tyrrhenian Sea.Äetiri jedinke authtonog plavog raka, Callinectes sapidus Rathbun, 1896, (Crustacea, Decapoda, Portunidae) prikupljena su tijekom komercijalnog ulova u jesen 2019. i zimu 2020. uz obalu sjevernozapadne Sicilije. Jedinke su sakupljane u vrlo plitkim vodama, na pjeĆĄÄanom dnu, te u blizini obale. Iako su plavi rakovi danas raĆĄireni duĆŸ veÄine istoÄne, zapadne i sjeverne obale Sredozemlja, ovo je prvi nalaz ove vrste iz srediĆĄnjeg i juĆŸnog Tirenskog mora
The Chain of Custody in the Era of Modern Forensics: From the Classic Procedures for Gathering Evidence to the New Challenges Related to Digital Data
The purpose of this work is to renew the interest and attention for the chain of custody in
forensic medicine, its establishment and maintenance, protecting the integrity and validity of evidence
as well as to analyze how over time the establishment of the chain of custody and the collection of
evidence has evolved also in function of the advent of technology and the use of electronic devices
connected to the network. The analysis of the various aspects of the chain of custody demonstrates
how necessary it is for the professional figures involved in the phases of the investigation (especially
those who manage the evidence and who have, therefore, designated the assignment) to know the
procedures to follow, trace the movement and the handling of objects subjected to seizure, also for
the purposes of toxicological and/or histological investigations. The knowledge of interferences
or complications helps to reduce errors and safeguard the validity of the evidence, assuring the
proceeding judicial authority that the evidence is authentic and that it is, in other words, the same
evidence seized at the scene of the crime. Furthermore, the issue is particularly felt today, with the
recent need to guarantee the originality of digital data. Following a careful review and analysis of
the literature currently available in this regard, it is worth adding that further efforts are needed to
formulate internationally validated guidelines, harmonizing the different reference criteria in forensic
science and medical areas, given the current absence of good international practices valid in the field
and applicable both in the case of physical evidence and in the case of seizure of digital evidence
Movement ecology of the white seabream Diplodus sargus across its life cycle: a review
The white seabream Diplodus sargus (L., 1758) (Osteichthyes, Sparidae) is a littoral species living mainly in rocky habitats and distributed in the eastern Atlantic and the Mediterranean. This species is targeted by artisanal and recreational fisheries and presents a high commercial importance. Although classified by IUCN as a "least concern" species, it has been the object of marine ranching and restocking initiatives to counteract locally intense exploitation. Here, we review the current knowledge on the movement ecology of white seabream given the relevance of animal movement in ecological and behavioral studies and their potential application in management and conservation. The literature on this topic was analyzed in order to summarize the results of past research and to identify the gaps that still exist on the matter. We reviewed a total of 27 papers focusing on the movement ecology of white seabream, where acoustic telemetry (n = 12), underwater visual observation and traditional tagging (n = 6), genetic analysis (n = 6), and otolith microchemistry (n = 3) were used. While the first three methods were applied to juvenile and adult fish, the last one was also used with larvae, which have been the object of experimental trials to ascertain their swimming abilities. The largest amount of information on activity rhythms (diurnal with a few exceptions), movement patterns (short distances), homing (ability to come back to the capture site), site fidelity (high), and home range (< 200 ha on average and highly related with seabed morphology) were obtained through acoustic telemetry, whose main limitation is the minimum body size required for its application. The environmental variables found to affect movement patterns in this species are water temperature (which triggers spawning-based vertical movements), local sea conditions (which affect short-scale movements in juveniles), and the main seabed features (orientation and habitat type). The main gaps identified, which need more extensive research and some technological improvements, include the study of the effects of environmental variables on fish movements and further investigations on the movement patterns of juveniles.info:eu-repo/semantics/publishedVersio
Hybrids and allied species as potential rootstocks for eggplant: Effect of grafting on vigour, yield and overall fruit quality traits
Grafting of fruiting vegetables is an effective technique to overcome pests and diseases in modern cropping
systems and it is often used to improve yield and fruit quality. Eggplant is an important vegetable crop that
benefits significantly from grafting. In this regards, the exploitation, valorization and breeding of new rootstock
genotypes as possible substitute to those commonly used (Solanum torvum and tomato hybrids) would permit an
intensive eggplant crop system in those situations where a rootstock rotation is required. In the present article,
we study the effects of several potential rootstocks including both wild/allied species of eggplant [S. torvum
(STO), S. macrocarpon (SMA), S. aethiopicum (accession SASI), S. aethiopicum (accession SASa2), S. paniculatum
(jurubeba) (SPA) and S. indicum (SIN)] and Msa 2/2 E7 and 460 CAL. eggplant hybrids on plant vigor, yield and
fruit characteristics of eggplant F1 hybrid (âBirgahâ), in two spring-summer growing seasons (2014 and 2015).
SPA and the hybrids Msa 2/2 E7 and 460 CAL. displayed a high percentage of grafting success. âBirgahâ scion
grafted onto the two above-mentioned rootstocks showed a notable vigour and yield. Both rootstocks did not
promote any unfavorable effects on apparent fruit quality traits and overall fruit composition. Furthermore, the
concentration of glycoalkaloids in the fruit remained below the recommended safety value (200 mg/100 g of
dw). These results suggest that SPA and Msa 2/2 E7 and 460 CAL. eggplant hybrids might represent a potential
rootstock alternative to S. torvum
Chronic cerebrospinal venous insufficiency in multiple sclerosis: a highly prevalent age-dependent phenomenon
BACKGROUND: This study aimed to investigate the prevalence and clinical relevance of chronic cerebrospinal venous insufficiency (CCSVI) in multiple sclerosis (MS) patients and healthy controls using extra- and intracranial colour Doppler sonography. METHODS: We examined 146 MS patients, presenting with a clinically isolated syndrome, relapsing-remitting, secondary progressive, or primary progressive MS, and 38 healthy controls. Sonographic examination was performed according to Zamboniâs protocol and was performed by three independent sonographers. The results of sonographic examination were compared with clinical and demographic characteristics of the patients. RESULTS: CCSVI, defined as the presence of at least two positive Zamboniâs criteria, was found in 76% of MS patients and 16% of control subjects. B-mode anomalies of internal jugular veins, such as stenosis, malformed valves, annuli, and septa were the most common lesions detected in MS patients (80.8%) and controls (47.4%). We observed a positive correlation between sonographic diagnosis of CCSVI and the patientsâ age (p = 0.003). However, such a correlation was not found in controls (p = 0.635). Notably, no significant correlations were found between sonographic signs of CCSVI and clinical characteristics of MS, except for absent flow in the jugular veins, which was found more often in primary (p<0.005) and secondary (p<0.05) progressive patients compared with non-progressive patients. Absent flow in jugular veins was significantly correlated with patientsâ age (p < 0.0001). CONCLUSIONS: Sonographically defined CCSVI is common in MS patients. However, CCSVI appears to be primarily associated with the patientâs age, and poorly correlated with the clinical course of the disease
Iodine Biofortification Counters Micronutrient Deficiency and Improve Functional Quality of Open Field Grown Curly Endive
Human iodine (I) shortage disorders are documented as an imperative world-wide health
issue for a great number of people. The World Health Organization (WHO) recommends I consumption
through ingestion of seafood and biofortified food such as vegetables. The current work
was carried out to appraise the effects of different I concentrations (0, 50, 250, and 500 mg L-1),
supplied via foliar spray on curly endive grown in the fall or springâsummer season. Head fresh
weight, stem diameter, head height, and soluble solid content (SSC) were negatively correlated to I
dosage. The highest head dry matter content was recorded in plants supplied with 250 mg I L-1,
both in the fall and springâsummer season, and in those cultivated in the fall season and supplied
with 50 mg I L-1. The highest ascorbic acid concentration was recorded in plants cultivated in the
springâsummer season and biofortified with the highest I dosage. The highest fructose and glucose
concentrations in leaf tissues were obtained in plants cultivated in the springâsummer season and
treated with 250 mg I L-1. Plants sprayed with 250 mg I L-1 and cultivated in the fall season had
the highest I leaf concentration. Overall, our results evidently suggested that an I application of
250 mg L-1 in both growing seasons effectively enhanced plant quality and functional parameters in
curly endive plants
Predictors of atrial fibrillation detection in embolic stroke of undetermined source patients with implantable loop recorder
BackgroundCovert atrial fibrillation (AF) is a predominant aetiology of embolic stroke of undetermined source (ESUS). Evidence suggested that AF is more frequently detected by implantable loop recorder (ILR) than by conventional monitoring. However, the predictive factors associated with occult AF detected using ILRs are not well established yet. In this study we aim to investigate the predictors of AF detection in patients with ESUS undergoing an ILR.MethodsThis observational multi-centre study included consecutive ESUS patients who underwent ILR implantation. The infarcts were divided in deep, cortical infarcts or both. The infarction sites were categorized as anterior and middle cerebral artery, posterior cerebral artery with and without brainstem/cerebellum involvement. Multivariable logistic regression analysis was performed to investigate variables associated with AF detection.ResultsOverall, 3,000 patients were initially identified. However, in total, 127 patients who consecutively underwent ILR implantation were included in our analysis. AF was detected in 33 (26%) out of 127 patients. The median follow-up was 411 days. There were no significant differences in clinical characteristics and comorbidities between patients with and without AF detected. AF was detected more often after posterior cerebral artery infarct with brainstem/cerebellum involvement (pâ<â0.001) whereas less often after infarction in the anterior and middle cerebral artery (pâ=â0.021). Multivariable regression analysis demonstrated that posterior cerebral artery infarct with brainstem/cerebellum involvement was an independent predictor of AF detection.ConclusionOur study showed that posterior circulation infarcts with brainstem/cerebellum involvement are associated with AF detection in ESUS patients undergoing ILR. Larger prospective studies are needed to validate our findings
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