1,721,081 research outputs found
From Bullettino della Società Botanica Italiana to Italian Botanist, passing through Informatore Botanico Italiano. A 128 years–long story
Full text linkIn 1888, concomitant with the foundation of the Italian Botanical Society, a section
called Bullettino della Società Botanica Italiana appeared in the last pages of each issue
of volume 20 of the Nuovo Giornale Botanico Italiano (currently the international
journal Plant Biosystems)...
Dinamica evolutiva di popolamenti forestali di neoformazione nel piano montano
No full textThe aim of this work was to study the dynamic of the vegetational evollution in a secundary succession on fallow land in mountain environment of external Alps. Using fitosociological and stand structural analysis we have studied the exisiting relationships between actual situation of fallows, fitosociological types, stand structure and time needed to performe the various phases. The main factor influencing the evolution seems to be time interval from the neglect of the land use, the presence of mother trees, the wild fires
Bruno Canova e Vito Miroballi nel Museo della Memoria Ferramonti di Tarsia: una mostra, un’occasione, un atto critico di museologia
No full textThe role of sucrose in maintaining pollen viability and germinability in Corylus avellana L.: a possible strategy to cope with climate variability
No full textIn this work, we propose a possible correlation between carbohydrate content in hazelnut pollen (wild type) and viability/germinability, also in a perspective of adaptation to climate variability. Samples from four different cultivation fields in Italy showed values of pollen viability characterized by high levels, ranging between 77.3 and 98.4% and a unique trend during the flowering period for each accession. When subjected to dehydration in controlled environment, pollen reduced the levels of viability to almost zero but recovered the initial values when rehydrated. The presence of anomalous pollen was found to be not significant, always below 4% in all accessions. The analysis on starch content gave negative results both when it was determined biochemically and detected by histological staining. Sucrose content resulted always higher than glucose and fructose in all the accessions analyzed. Its concentration throughout the dispersal phases reflected the trend of both pollen viability and germinability. These data seem to suggest a direct involvement of sucrose in the protection of plasma membranes from dehydration and the maintenance of pollen viability and germinability. This study demonstrates the sensitivity of hazelnut pollen to climatic fluctuations, particularly to air dry condition, stressing a significant role of sucrose in maintaing viablity and germinabilty during all dispersal period
Introduction, actual distribution and invasive status of Heracleum mategazzianum in Italy
No full textIl recupero di aree marginali con il pascolamento: approccio metodologico alla carta della vegetazione in scala 1:5.000 del Monte Pavaglione (Appennino ligure)
No full textRoot morphometric analysis and soil AM inoculum potential evaluation in three different herbaceous communities (NW Appennines, Italy)
No full textBruno Canova e Vito Miroballi nel Museo della Memoria Ferramonti di Tarsia: mostra, occasione, atto critico di museologia
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