Search results for " Brassica"

Eradication of Plasmodiophora brassicae during composting of wastes

2006

Survival of infectious inoculum of the clubroot pathogen Plasmodiophora brassicae was assessed following bench-scale flask composting experiments and large-scale composting procedures. Clubroot-affected material was provided by artificial inoculation of Chinese cabbage or naturally infected Brussels sprout and cabbage roots. Both sets of diseased material were used in flask experiments, and the latter in large-scale windrow and aerated tunnel experiments. Municipal green wastes, onion waste and spent mushroom compost were evaluated in flask experiments with varying temperature, aeration and moisture conditions. Green wastes were used in larger-scale composts. Within the limits of a Chinese …

A new species of Brassica sect. Brassica (Brassicaceae) from Sicily

2013

Among the suffruticose cabbages of Brassica sect. Brassica, a new species from Sicily, named B. raimondoi, is described and illustrated. It is a chasmophyte restricted to some steep limestone cliffs near Taormina (NE Sicily) and is morphologically related to B. incana, with which it shares densely hairy, broad, amplexicaul leaves and winged petioles, but differs principally in its white corolla, larger floral pieces, more developed stigmatic papillae, shorter siliquae with keeled valves and a smaller, seedless beak, smaller seeds differing in testa microsculpture. A key for the identification of the currently known Sicilian taxa of the section is provided.

Agronomic performance and energetic potential of two Brassica oilseed species in Sicily, Italy

2018

Industrial crops for energy purposes are object of increasing interest worldwide and play an important role as a source of renewable energy. The aims of this study were to evaluate: i) the agronomic performance of Brassica napus L. var. oleifera D.C. and Brassica carinata A. Braun in a semi-arid environment; ii) to evaluate the economic viability of a pilot combined heat and power (CHP) plant operating on pure vegetable oil (PVO). The research was carried out in Sicily (Italy). The main biometric and yield parameters of the two species were determined. Chemical-physical characterizations were carried out on PVO for each species using specific protocols. The cogeneration of renewable energy …

Brassica trichocarpa (Brassicaceae), a new species from Sicily

2013

A new species of Brassica from Sicily, namely B. trichocarpa, is described and illustrated. This suffrutex was found on a calcareous peak of a mount near Palermo, where it is represented by a single population occupying a really small surface. It is well differentiated from the other perennial species belonging to B. sect. Brassica mainly in having hairy ovary and very short, thickened, hairy, not torulose fruits. Its relationships and taxonomical position within this group are examined too. An analytical key of the current taxa belonging to the genus Brassica sect. Brassica is also provided. 

Differences in the activity and distribution of peroxidases from three different portions of germinating Brassica oleracea seeds

2002

Peroxidase (POD, EC 1.11.1.7) activity, cellular localization and isozyme patterns were investigated in the seed integument, cotyledon and embryo axis of Brassica oleracea cv. Cappuccio during pregermination and seedling growth. Seeds started to germinate after 24 h of imbibition. POD activity was localized in the pigmented layer of the integument and in procambial strands of the cotyledon and embryo axis in the first 24 h of imbibition. It was localized in the integumental cells of palisade, pigmented and aleurone layers and in epidermal, meristematic, procambial cells and xylem elements of the root and hypocotyl after 48 h of imbibition. POD activity increased during germination and early…

Progetto Energie Rinnovabili da Colture Agricole (E.Ri.C.A.): un'opportunità per le aziende agricole di diversificare e consolidare fonti di reddito

2013

Genetic variation in the Sicilian endangered populations of Brassica rupestris.

2011

Boll. Mus. Ist. Biol. Univ. Genova, 73, 2011 106° Congresso Società Botanica Italiana – Genova 21-23 settembre 2011 163 GENETIC VARIATION IN THE SICILIAN ENDANGERED BRASSICA RUPESTRIS F.M. RAIMONDO1, A. SCIALABBA1, G. ZECCA2, F. GRASSI2, G. CASAZZA3, L. MINUTO3 1 Department of Environment Biology and Biodiversity, University of Palermo, Via Archirafi 38, I-90123 Palermo, Italy. raimondo@unipa.it; germas@unipa.it; 2 Botanical Garden, Department of Biology, Università di Milano, Via Celoria 26, 20133 Milano, Italy. giovanni.zecca@gmail.com; fabrizio.grassi@guest.unimi.it; 3Department for the Study of Territory and its Resources, University of Genova, Corso Dogali 1M, I-16136 Genova, Italy. ga…

Data from: Symbiotic polydnavirus and venom reveal parasitoid to its hyperparasitoids

2018

Symbiotic relationships may provide organisms with key innovations that aid in the establishment of new niches. For example, during oviposition, some species of parasitoid wasps, whose larvae develop inside the bodies of other insects, inject polydnaviruses into their hosts. These symbiotic viruses disrupt host immune responses, allowing the parasitoid’s progeny to survive. Here, we show that symbiotic polydnaviruses also have a downside to the parasitoid’s progeny by initiating a multi-trophic chain of interactions that reveals the parasitoid larvae to their enemies. These enemies are hyperparasitoids that use the parasitoid progeny as host for their own offspring. We found that the virus …

Cytogenetical test to predict the vigour potential in Brassica seeds under long-term storage.

2013

Preservation of intraspecific diversity in seed banks is a common strategy to frontier the loss of biodi- versity, however long-term storage inevitably results in the loss of a certain percentage of seeds, there- fore causing the genetic erosion of a seed collection. For this reason seed quality monitoring is of out- standing importance to ensure that the regenerated genetic material is representative of the endemic nat- ural diversity once reintroduced in the environment, as well as to preserve the genetic biodiversity of species economically relevant for modern agriculture. Ageing amplification tests, in which seeds under- go osmotic stresses, enable to detect little differences in the vi…

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…