Search results for "orticoltura"
showing 10 items of 212 documents
Effect of packaging on quality of minimally processed fennel
2014
Fennel is not a widespread product among minimally processed vegetables, due to the fast deterioration mainly caused by browning of the cut surfaces, even during cold storage. In order to extend the shelf-life of fresh-cut fennel, the influence of different packaging techniques was studied. Sliced fennel, dipped in citric acid solution (0.5 %), was placed in polystyrene trays, sealed with PE film or vacuum packaged in PE bags and stored up to 14 days at 4°C. During this period weight loss, soluble solid content, pH, colour and firmness were evaluated. Minimally processed fennel packed in sealed trays and cold-stored at 4°C, extended its shelf life to 14 days maintaining acceptable quality. …
Effetti della tecnica di concimazione sull'allevamento di Pelargonium zonale L. in vaso
2010
La scelta di una adeguata tecnica di concimazione, nel vivaismo, è particolarmente importante in quanto ha una notevole influenza sulla riuscita del prodotto destinato alla commercializzazione e una notevole incidenza sui costi di produzione. La fertirrigazione è la pratica di concimazione più diffusa in vivaio, tuttavia, sempre più consistente, è il ricorso all’utilizzo di formulati a lento effetto che consentono notevoli risparmi sull’impiantistica e sulla manodopera. Con la presente ricerca ci si è proposti di valutare la risposta vegeto-produttiva a diverse modalità di concimazione, di una pianta molto apprezzata come specie da vaso fiorito: il geranio. Sono state messe a confronto tre …
Effetti del portinnesto sulla produttività e sulla qualità dell'anguria.
2010
The research aims to investigate the effects of different rootstocks on productive and qualitative aspects of two watermelon cultivars: Dumara, that produces big fruits and Minirossa that produces smaller fruits. For each cultivar, a randomized complete-block design was used with 3 replications to compare the following six grafting combinations: grafted plants into five rootstocks (Elsi, RS 841, Shintosa, Lagenaria corta, Anguria selvatica) and ungrafted plants. The highest yield of both cultivars was obtained with RS 841 while the lowest was observed with not grafted plants and grafted on elsi. However, using Elsi as rootstock, the plants gave fruits of greatest size. the best quality para…
Micropropagazione di Thymus capitatus
2011
Thymus capitatus is a compact woody shrub, endemic to the Mediterranean region, with attractive pink flowers. Although conventional vegetative propagation of T. capitatus is currently used, micropropagation could be effective for rapid mass propagation of selected clones and would preserve wild plants. Shoot tips of T. capitatus cultured on a gelled MS medium, supplemented with 0.4 mg l-1 2-iP, were used as primary explants to establish in vitro culture. Axillary shoots produced on uncontaminated explants were excised and subcultured to increase the stock of shoot cultures. To determine the optimal medium for shoot multiplication, increasing concentrations (0, 0.4, 0.8, 1.6 e 3.2 mg l-1) of…
UPDATE ON THE SICILIAN STRAWBERRY BREEDING PROJECT
2014
The strawberry industry in Sicily differs from that of Italy’s other southern regions since the particularly warm winter weather results in earlier fruit ripening. Cultivar choice is thus of key importance for the success of Sicily’s strawberry industry. The old cultivar Tudla®Milsei has recently been replaced by cultivars ‘Florida Fortuna’, ‘Florida Festival’, ‘Sabrosa®Candonga’, ‘Naiad®Civl35’ and ‘Nora’ developed by both public and private breeding programs in Florida, Spain and Italy. The strawberry breeding program in Sicily started about 20 years ago in an effort to develop new cultivars well adapted to an area of very low winter chilling, with requirements featuring superior performa…
Recupero e valorizzazione della lenticchia "Villalba"
2009
Le virosi nell’orticoltura professionale: guida alla prevenzione e alla difesa.
2009
Quality and shelf-life of minimally processed cauliflower
2018
Il cavolfiore è stato descritto come un ortaggio con un alto valore nutrizionale grazie al suo alto contenuto di vitamine, antiossidanti e composti anti-cancerogeni. Le infiorescenze di cavolfiore vengono raccolte mentre sono totalmente immature, il che implica gravi cambiamenti nello stato dei nutrienti, dell'acqua e degli ormoni. La raccolta e la successiva lavorazione possono causare gravi stress determinando la comparsa di sintomi di senescenza accelerata. Sono stati studiati gli effetti della lavorazione e della conservazione a freddo del cavolfiore trasformato minimamente. Gli ornamenti sono stati trattati con antiossidanti prima della conservazione in sacchi di PE a 4 ° C per 21 gior…
Focus micorrize: una preziosa simbiosi
2011
THE EFFECTS OF GROWTH REGULATORS ON IN VITRO AXILLARY SHOOT PROLIFERATION AND ROOTING OF ERICA MULTIFLORA
2012
Multiple shoots were induced on nodal segments of a mature plant of Erica multiflora L. Axillary shoots produced on uncontaminated explants were excised, segmented, and recultured on the same medium. The effect of Anderson medium, augmented with different concentrations of 2iP either singly or in combination with NAA, as potential medium for shoot multiplication by nodal segments was investigated. In the following experiment equal molar concentrations of four cytokinins (2iP, kinetin, zeatin, and BA) were studied for ability to induce axillary shoot development from single node stem segments. The highest rate of axillary shoot proliferation was induced on Anderson medium supplemented with 1…