978 research outputs found
Richard Nigro
No full textQuoting Nigro, the author refers to the artist's concern with contemporary urban truths. Includes texts from Nigro's photo-installation work
Impact of preharvest application of biocontrol agents on postharvest diseases of fresh fruits and vegetables
No full textDuring the storage of harvested commodities, environmental parameters are quite stable. For this and other reasons, it is generally believed that biological control by means of microbial antagonists may have a greater potential for success when applied postharvest. However, one of the major obstacles to the development of postharvest biocontrol agents is that they are unable to control previously established infections, such as latent and quiescent infections and incipient infections occurring through wounds resulting from harvesting operations. Field application of biocontrol agents may enable early colonisation of fruit surfaces, thus protecting from these infections. Moreover, preharvest applications can be an appropriate strategy for fruits and vegetables subject to damage in postharvest handling. To be successful in preharvest applications, putative biocontrol agents must be able to tolerate low-nutrient availability, UV radiation, high temperature and dry conditions. Some reports of postharvest biological control accomplished by preharvest applications, include apples, avocados, sweet cherries, grapes, and strawberries. This paper provides a brief overview on particular aspects of preharvest application of biocontrol agents to reduce postharvest decay. Research areas relevant for the development of this strategy are also indicated. (C) 2000 Elsevier Science Ltd. All rights reserved
Occurrence of new rots of olive drupes in Apulia
No full textIn some commercial olive groves of Apulia (southern Italy) the occurrence of
two new rots of olive fruits (Olea europea L.) was recorded in 1997-2000. The first
type of rot was observed on the fruits of cv. Coratina from two orchards in the
province of Bari. Its incidence on mature drupes was as high as 60% in the lower
tree canopy, symptoms consisting of extensive dark-brown discolorations, often
associated with premature falling to the ground. Two different types of
Phytophthora spp. were isolated from the lesions of symptomatic fruits, one of which
was identified as P. nicotianae (Breda) de Haan. Artificial inoculation of drupes with
both colony types reproduced the symptoms after incubation in a moist chamber.
The second type of rot was observed on the fruits of cvs Cellina di Nardò and Mele
collected from several orchards in the province of Taranto. Rot incidence could
reach 20% and symptoms, localised around the pedicel, consisted of shrivelled areas
surrounded by a faint yellow halo. From the lesions, a slow-growing fungus was
consistently isolated which, based on the morphological characteristics of pycnidia,
conidiophores and conidia, was tentatively identified as Pyrenochaeta quercina
Kabát & Bubák. Field symptoms were reproduced by artificial inoculation. This is
the first record of the occurrence of Phytophthora spp and P. quercina on olive
drupes
Shrivelling of olive fruits associated with water stress
No full textThe olive tree (Olea europea L.) is considered one of the species best adapted to the semiarid Mediterranean climate and is traditionally cultivated under rain-fed condition. Nonetheless in certain years persistent drought together with high temperatures may induce water stress. Symptoms of drought during spring and early summer are rare in Southern Italy because of water accumulated in the soil during winter. However, drought symptoms on olive trees have been observed in the last couple of years during autumn, with particular severity in some cultivars and in those orchards that had been irrigated until summer. Symptoms of water stress were present on the leaves and especially on the fruits, which were shrivelled. Possible predisposing factors in relation to cultivars and cultural practices are discussed
I promessi sposi: un esperimento
No full textI Promessi Sposi. Un esperimento ( a cura di Salvatore Silvano Nigro, nelle edizioni Sellerio: 2007, pp. 156) è un trattamento cinematografico inedito (e sconosciuto) di Giorgio Bassani che, scritto nel 1955, si presenta come una storia milanese coeva alla composizione delle Cinque storie ferraresi dello scrittore. Una introduzione critica, una Nota al testo e due Appendici, ricostruiscono il dibattito attorno ai Promessi Sposi di Manzoni negli anni Cinquanta, con il recupero di molte testimonianze inedite (una di queste, il saggio Criteri di massima per la sceneggiatura di un film dei Promessi Sposi di Riccardo Bacchelli, è stato pubblicato a parte, con accompagnamento critico, nella rivista «La Modernità Letteraria», 2, 2009). Il libro dà un contributo fondamentale allo studio del manzonismo bassaniano e alla conoscenza dell’interesse per Manzoni da parte del cinema italiano.I Promessi Sposi. Un esperimento (ed. Salvatore Silvano Nigro, Palermo, Sellerio, 2007, pp. 156) brings forth an unknown and unpublished cinematographic treatment of Manzoni’s novel by Giorgio Bassani. Written in 1955, it is a ‘story from Milan’, parallel to the coeval Cinque storie ferraresi by the same author. The critical introduction, with the note to the text and the two appendices, discloses the dynamics of the Italian debate on the Promessi Sposi during the Fifties, availing itself of many unpublished documents—one of whom, the essay “Criteri di massima per la sceneggiatura di un film dei Promessi Sposi” by Riccardo Bacchelli, was published with a critical introduction in “La Modernità Letteraria”, 2, 2009). I Promessi Sposi. Un esperimento offers, then, a fundamental contribution to the study of Bassani’s ‘manzonism’ and of the Italian cinematographic industry’s interest in and knowledge of Manzoni
Applicazione di agenti di lotta biologica in preraccolta nella lotta contro marciumi di ortofrutticoli in postraccolta
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