Ornamental plant production constitutes an important sector of the horticultural industry worldwide and fungal infections, that dramatically affect aesthetic quality plants, can cause serious economic crop losses. The need to reduce use pesticides for controlling outbreaks requires development new sustainable strategies pathogen control. In particular, early accurate large-scale detection occurring symptoms is critical face ambitious challenge effective, energy-saving, precise disease...

Zinc (Zn) is an essential micronutrient for plants, but it toxic beyond a certain threshold. Populus alba (L.) 'Villafranca' clone known its good tolerance to high Zn concentration compared other poplar species. A line of this species overexpressing the tonoplast intrinsic aquaporin AQUA1 gene has showed improved excess in comparison wild-type (wt) line. The aims work were to: 1) verify if plants can uptake more efficiently after longer period exposure; 2) evaluate higher transgenic lines...

Lignin is one of the main factors causing lignocellulosic biomass recalcitrance to enzymatic hydrolysis. Glasshouse-grown poplars severely downregulated for CINNAMYL ALCOHOL DEHYDROGENASE 1 (CAD1), enzyme catalysing last step in monolignol-specific branch lignin biosynthesis, have increased saccharification yields and normal growth. Here, we assess performance these hpCAD field under short rotation coppice culture two consecutive rotations yr 3 yr. While 1-yr-old wood had 10% less lignin,...

Low nutrient and high pH of circulating water represent two the main issues to overcome for a successful combination aquaculture hydroponics in aquaponics offering sustainable circular economy solution vegetable production. The purpose this study was screen tolerance four herbs low concentration hydroponics, i.e., green red basils, mint, rocket salad, with focus on plant yield nutraceutical aspects. Results highlighted basil as most tolerant species conditions followed by mint. On contrary,...

Drought dramatically affects wood production by adversely impacting cambial cells and their derivatives. Photosynthesis assimilate transport are also affected drought conditions. Two poplar genotypes, Populus deltoides 'Dvina' alba 'Marte', demonstrated contrasting growth performance water–carbon balance strategies; a mechanistic understanding of the water deficit response was provided these species. 'Marte' found to be more anisohydric than 'Dvina'. This characteristic associated with...

In the horticultural sector, achievement of an efficient and eco-friendly sustainable production plants is nowadays challenging. Indeed, in plant vegetative propagation woody ornamentals, substitution chemical products used to promote rooting cuttings with natural extracts would be a desirable goal. Thus, aim this work was test replacement synthetic phytoregulators, such as auxins brassinosteroids, biostimulants, seaweed extracts, for promotion rose cuttings. The rate biometric parameters...

Soilless culture is widely adopted for improving produce quality and yield increasing input efficiency. Most of the benefits potentially achievable in soilless systems are possible through precise continuous management adjustment plant nutrition. Under operational conditions, electrical conductivity (EC) main driving parameter leading fertigation strategies, but its measure drainage water can be not completely representative root zone growing medium. Nowadays low-cost sensors to bulk EC...

Bioavailability of potentially toxic elements (PTEs) from the Earth's crust in soil, e.g., As, Hg, Tl, and Pb, can pose a potential environmental health risk because human activities, especially related to mining extraction. The biomonitoring allows detect PTE contamination through their measurement living organisms as trees. However, choice which plant species tissue analyse is key point be evaluated relation absorption translocation. aim this work was assess Pb distribution Castanea sativa...

The global change scenarios highlight the urgency of clarifying mechanisms driving determination wood traits in forest trees. Coniferous xylem is characterized by alternation between earlywood (EW) and latewood (LW), on which proportions density depend, one most important mechanical qualities. However, molecular triggering transition production cells with typical features EW to LW are still far from being completely elucidated. increasing availability omics resources for conifers, e.g.,...

Populus alba ‘Villafranca’ clone is well-known for its tolerance to cadmium (Cd). To determine the mechanisms of Cd this species, wild-type (wt) plants were compared with transgenic over-expressing an aquaporin (aqua1, GenBank GQ918138). Plants maintained in hydroponic conditions Hoagland’s solution and treated 10 µM Cd, renewed every 5 d. The transcription levels heavy metal transporter genes (PaHMA2, PaNRAMP1.3, PaNRAMP2, PaNRAMP3.1, PaNRAMP3.2, PaABCC9, PaABCC13) analyzed at 1, 7, 60 d...

Non-thermal plasma (NTP) appears a promising strategy for supporting crop protection, increasing yield and quality, promoting environmental safety through decrease in chemical use. However, very few NTP applications on containerized crops are reported under operational growing conditions combination with eco-friendly media fertigation management. In this work, technology is applied to the nutrient solution used production of gerbera plants grown peat or green compost, as an alternative...

Trichoderma spp. are widely reported to regulate plant growth by improving nutrient uptake, photosynthesis, and abiotic stress tolerance. However, their possible application for bedding plants is little explored, especially when comparing different growing media. Considering that coconut coir dust finding broader in the ornamental sector as a peat substitute, this work was aimed test combination of atroviride AT10 on Impatiens walleriana plants. Four treatments were tested mix of: (i) two...

Wood production is a metabolic process requiring high amount of soluble carbohydrates as source carbon skeletons, energy, or signalling molecules.Nevertheless, the role sugars and starch has been rarely investigated in growth to dormancy transition phase.The aim this work was investigate carbohydrate concentrations transcription level some candidate genes involved cellulose metabolisms competitive sinks such phloem, maturing xylem, xylem during active phase Picea abies (L.) Karst.Stems were...

ISHS III International Symposium on Soilless Culture and Hydroponics: Innovation Advanced Technology for Circular Horticulture Opportunities challenges of using non-thermal plasma treatments in soilless cultures: experience from greenhouse experiments

Introduction The non-thermal plasma (NTP) technique has been suggested as a sustainable horticultural practice to promote biomass accumulation, nutrient uptake, N metabolism, and disease prevention in plants. In particular, the potentiality of this natural accumulation nutrients into plants deserve be explored input saving is strongly recommended sector. Methods solution supplied red coloured variety rocket salad [ Diplotaxis tenuifolia (L.) DC. ‘Dragon’s Tongue’] grown hydroponic close loop...