Search results for " OLE"

COLLARD GREEN (BRASSICA OLERACEA VAR. ACEPHALA) CULTIVATION IN SICILY

2013

Collard greens (Brassica oleracea var. acephala) are a group of plants cultivated for its thick, slightly bitter, edible leaves. As other Brassicaceae, have a good nutritional value as they are a good sources of vitamin C and soluble fiber, and contain various compounds with potent anticancer properties. In order to enhance collard cultivation in Sicily, different planting dates were tested. The research was carried out during 2009-2010 in the experimental field of SAgA Department – University of Palermo. Plants of a Sicilian local cultivar, with high vigor, good emission of side shoots, large and moderately curly leaves and long and strong petiole, were planted in three different periods: …

Plant surfaces of vegetable crops mediate interactions between chemical footprints of true bugs and their egg parasitoids.

2009

During the host location process, egg parasitoids can eavesdrop on chemical cues released from immature and adult hosts. These indirect host-related cues are highly detectable, but of low reliability because they lead egg parasitoid females to an area where oviposition is likely to occur rather then providing wasps with direct information on the presence of eggs and their location. In the host-parasitoid associations between true bugs and their scelionid egg parasitoids, female wasps perceive the chemical residues left by host adults walking on substrates as contact kairomones, displaying a characteristic arrestment posture. In this study, we demonstrated that epicuticular waxes of leaves o…

IN VITRO GERMINATION OF STONELESS AND ISOLATED EMBRYOS OF 14 SICILIAN CULTIVARS OF OLEA EUROPAEA L.

2009

Effect of a novel physical pretreatment process on the drying kinetics of seedless grapes

2000

In this paper an alternative physical method for enhancing the drying rate of seedless grapes is proposed. It consists of the superficial abrasion of the grape peel using an inert abrasive material. The effectiveness of this novel process was compared to that of the traditional ethyl oleate dipping process by analysing not only their respective drying times, but also the peel surfaces by scanning electron microscopy. Moreover, the drying kinetics of the above two treatments was reconstructed by using a mathematical model in which the grape pretreatment used was assumed to affect the water diffusivity in the grape peel, but not in the grape pulp. Even though the abrasion method was found to …

Physical pre-treatment of plums (Prunus domestica). Part 1. Modelling the kinetics of drying

2002

An alternative physical method for enhancing the drying rate of plums is proposed. It consists of the superficial abrasion of the plums' peel using an inert abrasive material to remove the cuticular waxy layer, the limiting factor for moisture loss. The physical pre-treatment was compared with a chemical treatment in which the plums were dipped into a solution of ethyl oleate. The drying kinetics of the above samples, including the untreated one, were reconstructed by using a mathematical model. The drying process, carried out at 60 C to reduce the prunes' quality loss, showed the great capability of both pre-treatments to enhance water diffusivity in the plum peel with respect to the untre…

Binding of individual Bacillus thuringiensis Cry proteins to the olive moth Prays oleae (Lepidoptera: Yponomeutidae)

2009

The microlepidopteran Prays oleae is one of the main insect pests causing significant crop losses in the Mediterranean olive groves. Bacillus thuringiensis based insecticides are being successfully used to minimize the impact of the second and third generations of this pest. However, because of its very small size and difficulty of rearing, very few studies have been carried out to determine the potency and mode of action of B. thuringiensis Cry proteins in this insect. In this study, Cry1Ac, Cry1Ca, and Cry1Fa proteins were shown to be toxic to third instar larvae of P. oleae. Furthermore, binding assays with (125)I-Cry1Ac and brush border membrane vesicles from midguts of last-instar larv…

Metabolic profiling of ripe olive fruit in response to moderate water stress

2013

a b s t r a c t The concentrations of different metabolites in olive (Olea europaea (L.)) fruit at harvest can be affected by water availability, with significant consequences on the composition and the quality of the resulting oil. The aim of the present study was to profile the metabolic composition of ripe olives (cv. Cipressino) grown under water-stress and irrigated conditions applied during the last part of the fruit developmental cycle (from pit hardening to commercial harvest). The imposed conditions resulted in a moderate water stress (−3.5 MPa) at the end of the experimental period. Samples (pulp + skin) of fruit collected at the stage of complete epicarp pigmentation were analyze…

Jón Kalman Stefánsson: Kaloilla ei ole jalkoja

2019

Kirja-arvostelu teoksesta Jón Kalman Stefánsson: Kaloilla ei ole jalkoja (Fiskarnir hafa enga fætur). Suom. Tapio Koivukari. Aviador Kustannus 2019. 297 sivua nonPeerReviewed

Koźle na przełomie XIV i XV wieku. Wpływ Piastów oleśnicko-kozielskich na rozwój miasta

2021

Podsumowując panowanie Piastów oleśnicko-kozielskich w Koźlu, które trwało od 1357 do 1472 r., należy zauważyć, że ich wpływ na rozwój miasta należy widzieć na płaszczyźnie pozytywów i negatywów. Za pozytywne trzeba uznać następujące fakty: uczynili oni Koźle stolicą ich dziedzin Górnego Śląska i włączyli to miasto do swojej tytulatury; wystawili w nim kilka dokumentów dla ich górnośląskich poddanych; współpracowali z joannitami w Koźlu, co znacząco przyczyniło się do rozwoju kozielskiej parafii; w 1431 r. sprowadzili do niego także franciszkanów.

Control of Portulaca oleracea by boldo and lemon essential oils in different soils

2015

Soil characteristics influence plant growth and can affect the phytotoxicity of the essential oils. In this study chemical composition and herbicidal activity of Peumus boldus Mol. and lemon essential oils in different growing medium against Portulaca oleracea L. was investigated. Ninety-four compounds accounting between 95.5 and 99.8% of the total essential oil were identified by gas chromatography-mass spectrometry in boldo and lemon essential oils. Ascaridole (31.56. ±. 0.15%), p-cymene (21.58. ±. 0.09%) and 1,8-cineole (12.57. ±. 0.13%) were the main compounds in P. boldus whereas large amount of limonene (59.28%) followed of β-pinene (12.96%) and γ-terpinene (10.92%) were found in lemo…