22 research outputs found
Coastal Landscape Quality Index: fragmentation and biodiversity.An application along the Apulian coast.
This work has been carried out by the IMCA Research (Integrated Monitoring of Coastal Areas), New technologies for survey, analysis and monitoring of environmental parameters financed by MIUR, within the activities to draw coastal landscape quality maps through the use of indexes taken from satellite remote sensing images.
The researchthanks to the experience of the European Convention of Landscape, analyses the topics of Landscape Quality through scaling up processes, that is an interpretation of the phenomena according to spacial-temporal variables.
The products of the research are maps, both when representing landscape conditions (for example, maps on the use of the land) and describing the changes that are taking place (changes map), to eventually recognise its criticality and values to formalise in a quality objectives map
Sources of verticillium wilt resistance in wild olive germplasm from the Mediterranean region
Fifty-seven wild olive accessions collected from the Mediterranean basin were screened under greenhouse conditions for their resistance to verticillium wilt. Plants were root-dip inoculated. One defoliating and one non-defoliating isolate of Verticillium dahliae, both obtained from diseased plants in southern Italy, were used. Plants of the highly susceptible cv. Cima di Mola, frequently used as a rootstock in Apulia, were also included in this test. Disease reactions were evaluated on the basis of external symptoms, vascular browning and by calculating areas under disease progress curves (audpc). On the basis of Audpc values and external symptom severity, accessions were grouped into four phenotypic groups: highly resistant, moderately resistant, susceptible and highly susceptible. Three accessions showed high resistance to both V. dahliae pathotypes. Forty resistant plants were selected from accessions that had shown the highest levels of resistance. Clones were obtained from each of these plants by in vitro micropropagation for further testing. Ten clones showed the resistance characteristics of their original mother plants, while others suffered greater levels of disease severity than their mother plants. Several new olive rootstocks were identified that were highly resistant to verticillium wilt and could be included in breeding programmes for resistance of olive to V. dahliae