Search results for "Agronomia"
showing 10 items of 614 documents
Identification and characterization of nitrate-related genes in durum wheat (Triticum turgidum L. subsp. durum Desf.) to improve Nitrogen Use Efficie…
2022
The increasing foods demand caused by the increasing world population posed new challenges to the modern agriculture. In recent years, many strategies have been adopted to cope with these needs and satisfy these demands. Among these, the improvement of agronomic techniques and plant selection and breeding are crucial for a sustainable improvement of crop production. Nitrogen (N) is an essential nutrient for plant growth and development due to its important role in several biochemical pathways, constituting 2-5 % of plant dry matter. The excessive use of N fertilizer led to high environmental pollution with impacts on both ecosystems and human health. Therefore, N inputs reduction is one of …
Transcriptome changes induced by Arbuscular mycorrhizal symbiosis in leaves of durum wheat (Triticum durum Desf.) promote higher salt tolerance
2022
AbstractThe salinity of soil is a relevant environmental problem around the world, with climate change raising its relevance, particularly in arid and semiarid areas. Arbuscular Mycorrhizal Fungi (AMF) positively affect plant growth and health by mitigating biotic and abiotic stresses, including salt stress. The mechanisms through which these benefits manifest are, however, still unclear. This work aimed to identify key genes involved in the response to salt stress induced by AMF using RNA-Seq analysis on durum wheat (Triticum turgidum L. subsp. durum Desf. Husn.). Five hundred sixty-three differentially expressed genes (DEGs), many of which involved in pathways related to plant stress resp…
Water needs of production of biomass for energy in Poland
2009
The paper presents the updates of Polish government policy , showing legal and financial instruments for governing the bioenergy developments. The strategy for renewable energy must be co-ordinated with the strategy of water management in a country. The water needs are given for cool climate and extensive agriculture of Central and Eastern Europe. They are a few times lower than for hotter condition of Southern Europe. Despite this the rain would be not enough for water supply of most of the energy crops.
The role of biomass in the production of electricity in agriculture. Current state and development opportunities
2012
The farming sector is currently affected by a continuous fall in the number of people employed in the sector and underemployment in farming families. This is largely due to the world economic crisis and the constant increase in the cost of primary goods coupled with a fall in value of agricultural products. This has caused, in various weak areas of many regions in Italy, a tendency towards rural depopulation with evident signs of land abandonment, leaving the area vulnerable to the risk of hydrogeological instability. It is therefore of the utmost importance to promote activities aimed at diversifying the rural economy by offering incentives to create/increase non-farming activities. Amongs…
Scorpiurus muricatus L.: an interesting legume species for Mediterranean forage systems
2017
Scorpiurus muricatus L. (prickly scorpion’s tail) is a legume species widely distributed as a spontaneous plant in Mediterranean pastures. In Sicily, farmers ascribe to this species a very high palatability and galactogogue effect, so that its abundance increases the value of the pasture. However, despite its worthy traits, the use of S. muricatus as a forage within cropping systems has not been well investigated. A field experiment was performed during two growing seasons in a semiarid Mediterranean environment to acquire information on the productivity of S. muricatus in comparison with other forage species grown in Mediterranean areas (e.g. berseem clover, burr medic, subterranean clover…
Caratterizzazione bio-agronomica ed energetica di alcune specie presenti nella flora spontanea siciliana
2009
La biomassa ligno-cellulosica, proveniente da numerosi arbusti della macchia mediterranea, grazie alla loro diffusa disponibilità sul territorio, rappresenta sicuramente una fonte rinnovabile di energia facilmente reperibile. Il crescente interesse verso tali fonti ha sollecitato la ricerca ad approfondire le conoscenze su quelle specie che, da un lato possano fornire una notevole quantità di biomassa, dotata di un elevato rendimento energetico, e che, dall’altro, richiedono bassi input energetici (concimazioni, lavorazioni, apporti irrigui, ecc.) per la loro coltivazione. In quest’ottica, è stato svolto uno studio per individuare specie arbustive della macchia mediterranea, contribuendo co…
INDIVIDUAZIONE DI POLI ENERGETICI PER LA VALORIZZAZIONE DELLE BIOMASSE NELLA SICILIA OCCIDENTALE
Agronomic Evaluation of Ethiopian Mustard (brassica Carinata A. Braun) Germplasm and Physical-energy Characterization of Crop Residues in a Semi-arid…
2017
Brassica carinata A. Braun is one of the most interesting oilseed crops suited to arid and semi-arid areas for energy purposes. Several studies have highlighted the possibility of introducing this species into cropping systems, typical of Mediterranean region. The aims of this study were to evaluate the agronomic performance of Brassica carinata germplasm under Mediterranean climatic conditions and to assess the physical and energy characteristics of crop residues and pellets made from the residues. A total of 20 different accessions of Brassica carinata were compared in a semi-arid area of Sicily (Italy). In the two-year test period, the main morphological and yield parameters of the acces…
Long‐Term Tillage and Cropping System Effects on Chemical and Biochemical Characteristics of Soil Organic Matter in a Mediterranean Semiarid Environm…
2015
Several studies have reported how tillage and cropping systems affect quantity, quality, and distribution of soil organic matter (SOM) along the profile. However, the effect of soil management on the chemical structure of SOM and on its hydrophobic and hydrophilic components has been little investigated. In this work, the long-term (19 years) effects of two cropping systems (wheat monoculture and wheat/faba bean rotation) and three tillage managements (conventional, reduced, and no tillage) on some chemical characteristics of SOM and their relationships with labile carbon (C) pools were evaluated. Soil samples were taken from the topsoil (0–15 cm) of a Chromic Haploxerert (central Sicily, I…