Search results for " CITRUS"

Citrus biotechnology

2020

Agricultural crops that can better withstand the changing climatic and pathogen landscape have been produced through natural selection throughout the millennia and, in recent years, through the process of human-assisted plant breeding and selection. However, a lack of genetic diversity in many commercially cultivated crops (due to monoculture) has made them more vulnerable to biotic and abiotic stresses (Esquinas-Alcazar, 2005; Keneni et al., 2012). Citrus, belonging to the Rutaceae family, is one of the most important commercial woody fruit crops in the tropical and subtropical areas of the world. The origin of citrus is traced back to parts of tropical and subtropical Southeast Asia (Wu e…

Discrimination of hand fresh squeezed and commercial grapefruit juices by electronic nose.

2013

BIOLOGY OF THE WREN, TROGLODYTES TROGLODYTES, IN A MEDITERRANEAN INSULAR AGROECOSYSTEM

2009

In the last years many species of birds have exploited urban and suburban habitats, taking opportunistically advantage of human presence for their niche parameters. The Wren is one of them and shows a high variability in the choice of nesting sites in the gardens of the outskirts of Palermo (Sicily). For many years the authors studied the breeding habits of this small bird, and thanks to the video-tape recordings on the nests, they were able to gather new information on its feeding habits and parental care. They could establish the role played by both parents, the different prey types carried to the chicks, and other data, scarcely known in the southern part of distribution of this passerin…

Rigenerazione da coltura in vitro di antere di agrumi.

2015

Embryo production through isolated microspore culture in Citrus clementina Hort. ex Tan., cv. Monreal Rosso .

2013

Biological activity of metabolites extracted from Citrus spp. on Ceratitis capitata (Wiedemann) (Diptera: Tephritidae)

2012

The Mediterranean fruit fly (medfly), Ceratitis capitata (Wiedemann) (Diptera: Tephritidae), is one of the most injurious pest at global level. During the last years, several electrophysiological and behavioural studies have been carried out in order to investigate plant volatile compound-insect interactions with the aim to use this knowledge in sustainable control techniques. It has been observed that lemons are not attacked by medfly, probably because of the peel oil, that is toxic to other fruit flies. In the present paper electrophysiological recordings were conducted to evaluate the insect sensitivity to peel extract and peel oil of two Sicilian cultivars (Interdonato and Lunario) of C…

Mytilococcus gloverii (Packard) (Homoptera: Diaspididae) parasitism by Encarsia herndoni Girault (Hymenoptera: Aphelinidae) twenty years after its in…

2009

The use of kaolin to control Ceratitis capitata in organic citrus groves

2011

The Mediterranean fruit fly, Ceratitis capitata (Wiedemann) (Diptera Tephritidae), is the key pest in some organically managed citrus orchards in Sicily. The effectiveness of processed kaolin (Surround WP) for control of C. capitata damage was tested in field trials carried out in 2003-2004 on two early ripening citrus species: satsuma (Citrus unshiu Markow.) and clementine (Citrus clementina Hort. ex Tan.). Although the number of males captured in trimedlure baited traps was high in both years and in both orchards, the percentage of damaged fruit varied greatly from almost 0% (satsuma 2003) to more than 60% (clementine, both years). Nevertheless, the application of processed kaolin signifi…

Molecular characterization of citrus tristeza virus (CTV) isolates and detection of fungi associated with Citrange root-stock in Sicilian symptomless…

2014

The first monitoring on the CTV occurrence in central-western Sicily carried out during spring 2011 in asymptomatic citrus groves, has allowed to report CTV- free citrus-growing areas (province of Caltanissetta and Trapani), the first focus in province of Agrigento and two new others in province of Palermo. Molecular analysis (RT-PCR of p18, p20 and p23 genes, single strand conformation polymorphism and partial sequencing) showed that the obtained CTV isolates had a high homology (99%) with mild CTV strains (T 30 and T 385). Moreover, survey on the genetic flow and analysis of synonymous/nonsynonymous, by MEGA 5.0 and DNAsp 5.0 programs, demonstrated the provenience of the new “tristeza” fo…

Preliminary evaluation of a zinc-copper-citric acid biocomplex for the control of Plenodomus tracheiphilus causal agent of citrus mal secco disease

2022

In this study we evaluated a zinc copper-citric acid biocomplex (Dentamet®) for the effect on citrus mal secco disease caused by Plenodomus tracheiphilus. In vitro tests highlighted an inhibitory activity of the compound on mycelial growth and phialoconidia germination. Independent in vivo trials were performed in a growth chamber inoculating a virulent fungal isolate on sour orange seedlings and young plants of two lines of Femminello lemon, namely ‘Zagara bianca’ and ‘2Kr’, grafted on sour orange and grown in pots. The compound was leaf sprayed three days before the inoculation by wounds with phialoconidia. Overall, disease index and disease progress curve in plants inoculated with P. tra…