Search results for "Traits"
showing 10 items of 548 documents
Genetic variation of an Italian long shelf-life tomato (Solanum lycopersicon L.) collection by using SSR and morphological fruit traits
2014
The recovery of ancient germplasm in tomato (Solanum lycopersicon L.) has become necessary to limit the wide genetic erosion caused by the employment of modern cultivars. Among germplasm collections, long shelf-life landraces could represent an important source of biodiversity. The present study provides a first set of molecular and phenotypic data on long shelf-life (so called "da serbo" in southern Italy) tomato collection, mainly originated from Sicily together with some landraces from Campania and Apulia. The analysis of fruit traits showed a low intra-varietal variation, while exhibiting a quite higher inter-varietal variability. Overall, the cultivars have been classified in six fruit…
Macrosystem community change in lake phytoplankton and its implications for diversity and function
2023
Aim We use lake phytoplankton community data to quantify the spatio-temporal and scale-dependent impacts of eutrophication, land-use and climate change on species niches and community assembly processes while accounting for species traits and phylogenetic constraints. Location Finland. Time period 1977–2017. Major taxa Phytoplankton. Methods We use hierarchical modelling of species communities (HMSC) to model metacommunity trajectories at 853 lakes over four decades of environmental change, including a hierarchical spatial structure to account for scale-dependent processes. Using a “region of common profile” approach, we evaluate compositional changes of species communities and trait profil…
Achievement goal orientations and subjective well-being: A person-centred analysis
2008
Abstract This study examined whether students with different achievement goal orientation profiles differ in terms of subjective well-being (i.e., self-esteem, depressive symptoms, school-related burnout, and educational goal appraisals). Six groups of students with unique motivational profiles were identified. Observed differences in subjective well-being indicated that goals related to self-improvement and growth were positively associated with various indices of well-being, whereas avoidance tendencies and concerns with validating or demonstrating one's competence were linked with different types of adjustment problems. Findings demonstrate the importance of including measures of well-be…
Adhesive root hairs facilitate Posidonia oceanica seedling settlement on rocky substrates
2015
Posidonia oceanica, the dominant Mediterranean seagrass, has been historically described as a species typically growing on mobile substrates whose development requires precursor communities. During more than 10 years of direct observations, we noticed that P. oceanica seedlings were often firmly anchored to rocky reefs, even at exposed sites. Thus, we analysed the ultrastructural features of seedling root systems to identify specific traits that may represent adaptations for early seedling anchorage on rocky bottoms. Subapical sections of adventitious roots were obtained from 2-3 months old specimens collected in the field and were observed at SEM revealing an extensive coverage of adhesive…
Maladaptive Personality Traits and Their Interaction with Outcome Expectancies in Gaming Disorder and Internet-Related Disorders
2021
Gambling disorder and gaming disorder have recently been recognized as behavioral addictions in the ICD-11 (International Classification of Diseases, 11th edition). The association between behavioral addictions and personality has been examined before, yet there is a lack of studies on maladaptive traits and their relationship to specific outcome expectancies. In study 1, we recruited a community sample (n = 365)
A Study on the Emigration Enablers of the Romanian Students in Theology
2018
The main purpose of this article is to describe and validate/test a set of hypothetical traits of the theology students from two important Romanian universities regarding their migration attitudes after graduation. The study is based on a consistent questionnaire survey, both in terms of architecture of variables and number of complete responses. After cleaning, processing and doing all the required derivations on the original data, statistical analysis methods have been applied. The results have brought solid arguments to validate all the hypotheses that marked the starting point of this study. They finally proved the importance of specific personal motivations and personality traits as ke…
La tapicería de la expulsión de los moriscos : un proyecto frustrado de Rodrigo Calderón
2018
espanolEl articulo pone en relacion la serie ya conocida de pinturas titulada «La expulsion de los moriscos del Reino de Valencia» con una documentacion inedita de un encargo realizado por Rodrigo Calderon al virrey de Valencia, marques de Caracena, que incluia, ademas de la narracion de la expulsion, una vista de la ciudad de Valencia y retratos de los protagonistas, y que debia convertirse en una coleccion de tapices nunca realizada. EnglishThis paper deals with an already known series of paintings titled The Expulsion of the Moriscos from the Kingdom of Valencia and provides unpublished documentation of a commission made by Rodrigo Calderon to the viceroy of Valencia, Marquis of Caracena…
Lucrècia Borja. L'alteració d’una identitat i l’errònia atribució de la pintura de Flora de Bartolomeo Veneto
2017
Resum: Aquest treball preten emfatitzar l’erronia identitat que ha arribat fins als nostres dies de Lucrecia Borja i l’equivocada atribucio que se n’ha fet d’alguns retrats. Com ara, la pintura de Flora (c.1520), pintada per Bartolomeo Veneto, que ha passat a la historia com una indissoluble identificacio de Lucrecia. Els estudis actuals han demostrat que representa un model ideal influit pel context literari probablement relacionat amb Pietro Bembo. Durant el Renaixement, els retrats representen molt mes que una identitat concreta i mimetica. Son suports de prestigi i transmissio ideologica, de virtuts morals, memoria, etc. En l’ambit artistic venecia de principis del segle XVI sorgeixen m…
Using Anther Culture Method for Flax Breeding Intensification
2015
Flax breeding is a long and complicated process based on hybridization and following selection of the best plants. Because of possible occasional cross-pollination the development of genetically stable homozygous lines could last more than 15 years. For more rapid creating of initial material for flax breeding anther culture methods for producing doubled haploid (DH) lines could be used successfully. The goal of this study was to develop the best anther culture protocol for producing DH lines from hybrids included in Latvian flax breeding programme and to do preliminary field evaluation of obtained DH lines. F4 hybrids were used in the experiment. Method, most applicable for establishing of…
Ocean acidification and elevated temperature negatively affect recruitment, oxygen consumption and calcification of the reef-building Dendropoma cris…
2019
Expected temperature rise and seawater pH decrease may affect marine organism fitness. By a transplant experiment involving air-temperature manipulation along a natural CO2 gradient, we investigated the effects of high pCO(2) (similar to 1100 mu atm) and elevated temperature (up to +2 degrees C than ambient conditions) on the reproductive success, recruitment, growth, shell chemical composition and oxygen consumption of the early life stages of the intertidal reef-building vermetid Dendropoma cristatum. Reproductive success was predominantly affected by temperature increase, with encapsulated embryos exhibiting higher survival in control than elevated temperature conditions, which were in t…