Search results for "RBAC"
showing 10 items of 740 documents
Focus sulle sementi di frumento duro in Sicilia
2013
La produzione di sementi di frumento duro in Sicilia
2014
Sulla (Hedysarum coronarium L.) leaves and stems as a potential biofuel feedstock
2014
Sulla (Hedysarum coronarium L. syn., Sulla coronaria [L.] Medik.) is a short-lived perennial legume native to the Mediterranean basin, where it is extensively grown as a 2-year forage crop playing a key role in cereal-based systems of semi-arid regions thanks to its versatility, (e.g., used for grazing, hay and silage production, and grazing associated with hay production), good-quality forage, and environmental benefits. To date, sulla has not been considered as a bioenergy crop. This research aimed to evaluate the potential of sulla biomass as a biofuel feedstock; in addition, due to the possibility to separate the leaves from the stems as suggested for alfalfa, the biomass composition wa…
Molecular and agronomic responses to soil inoculation with plant-growth promoting rhizobacteria and arbuscular mycorrhizae in Triticum durum
2012
Plant-growth promoting rhizobacteria (PGPR) and arbuscular mycorrhizal (AM) fungi contribute to plant nutrient uptake by increasing the availability of nutrients and the root adsorbing surface. However, the molecular mechanisms of plant responses to these associations are still under-investigated. Gene expression analysis could lead to the identification of biomarkers usable to early select genotypes for an increased nutrient uptake efficiency. The main objective of this study was to determine the effects of these associations on plant total biomass and grain yield in durum wheat (cv. Anco Marzio). Secondly, we aimed to analyze the expression pattern of key genes involved in nutrient uptake…
The effects of post-pasture woody plant colonization on soil and aboveground litter carbon and nitrogen along a bioclimatic transect.
2013
Abstract: We investigated the effects of woody plant colonization of abandoned pastures on soil and litter organic carbon (C) stocks and nitrogen (N) content along a bioclimatic transect in a semi-arid environment (Sicily, Italy). Soil samples were taken in three successional stages (grazed pasture, shrubland, forest) within each of three bioclimates (supramediterranean - “supra”, mesomediterranean - “meso”, thermomediterranean - “thermo”). Organic C and N in litter and soil (0-10 cm and 10-30 cm depth) were determined, as well as soil bulk density. Especially at 0-10 cm depth, changes in C and N contents along successional stages differed among bioclimates. Soil organic carbon (SOC) stock …
Management of irrigation water and nutrient demands of tomato (Lycopersicon esculentum Mill.) using urban treated wastewater from a pilot-scale horiz…
2017
The reuse of treated wastewater (TWW) in crop irrigation is an advanced and rational approach to water resource management in agriculture. Results would seem to demonstrate that it could be an extremely important tool in the reduction of freshwater (FW) consumption in agriculture, at the same time helping to increase crop yields through the transfer of nutrients required for crop growth. In arid and semi-arid areas of the Mediterranean, constructed wetlands can play a key role in the treatment and reuse of wastewater due to their multifunctional nature. The aim of this study was to manage water and nutrient requirements of tomato (Lycopersicon esculentum Mill.) using TWW from a pilot-scale …
The use of constructed wetlands for the treatment of agro-industrial wastewater – A case study in a dairy-cattle farm in Sicily (Italy)
2017
Wastewaters generated by agro-industrial operations often represent an unsustainable cost for farms due to high wastewater-treatment management costs. The wastewater produced by dairies, wineries or oil mills may vary in quantity and in quality depending on the time of the year, making the use of a conventional treatment system less efficient and more costly. Constructed wetland systems (CWs) provide low-cost technology and an efficient solution in the treatment of a number of wastewaters from agriculture. They are simple to build, have low maintenance costs and are sustainable compared to conventional treatment methods. This paper shows a case study that was carried out on a dairy-cattle f…
Growth of Arundo donax L. and Cyperus alternifolius L. in a horizontal subsurface flow constructed wetland using pre-treated urban wastewater - a cas…
2013
Constructed wetland systems for wastewater treatment represent an excellent opportunity for the recovery of water resources in those areas subject to prolonged periods of water shortage. This paper presents a study of the efficiency of a pilot horizontal subsurface flow system using pre-treated urban wastewater from a small town in the West of Sicily. The pilot system had a total surface area of 100 m2 with two units. Unit A was planted with Arundo donax L. and unit B with Cyperus alternifolius L. The HLR was 10 cm d-1. The main objectives of research were to evaluate the growth and biomass yield of two macrophytes and determine the removal efficiency of physical-chemical and microbiologica…
Studi preliminari sulla propagazione gamica e vegetativa di Hypericum perforatum in ambiente mediterraneo
2014
La conoscenza dei fattori che influenzano la propagazione di una specie rappresenta un passo cruciale nella messa a punto di strategie per la sua moltiplicazione di massa e introduzione in coltura, sia in campo che in ambiente controllato. Sono stati approfonditi alcuni aspetti della propagazione gamica di Hypericum perforatum (di cui è nota la bassa germinabilità del seme), verificando in particolare gli effetti di variabili diverse (soddisfacimento delle esigenze in freddo, temperatura, substrato, presenza di PGPR, batteri promotori della crescita). Sono stati inoltre approfonditi gli studi sulle potenzialità di moltiplicazione vegetativa della specie, da proporre come possibile alternati…
Il cappero di Linosa: aspetti colturali e individuazione di biotipi spontanei per utilizzazioni produttive
2008
Linosa, isola dell'arcipelago delle Pelagie, vanta un'antica tradizione agricola basata su sistemi colturali tradizionali legati a poche colture agrarie (ortive, vite, cappero, ecc.). Per salvaguardare e valorizzare tali produzioni, il Consorzio Co.Ri.S.S.I.A. di Palermo ha intrapreso uno studio sul cappero linosano (Capparis spinosa L. subsp. rupestris). La prova è stata condotta somministrando schede-questionario ad un campione rappresentativo di produttori di cappero locali unitamente ad indagini esporative sul territorio. Sono state individuate 7 accessioni di cappero su cui sono stati condotti rilievi morfo-biometrici e produttivi. In questo lavoro si riportano i risultati delle schede…