Search results for "flor"
showing 10 items of 1665 documents
First record of Sphaeralcea bonariensis (Cav.) Griseb. (Malvaceae) as a casual alien species in the Mediterranean area
2022
Sphaeralcea bonariensis (Cav.) Griseb. is here reported for the first time as alien species in Italy and in the Mediterranean area. It is a perennial shrub native to Southern America, where it is often considered a ruderal species frequent in cultivated areas. It was found in a population of a few individuals within Opuntia ficus-indica groves of Rocca Palumba territory (Western Sicily). Actually, due to short-term observational period and the low number of plants, Sphaeralcea bonariensis should be considered as a casual species in Italy. The ecological characteristics of the growing stand and the consistency of the population, as well as the possible causes of its introduction, are briefly…
Effects of NAA and Ecklonia maxima Extracts on Lettuce and Tomato Transplant Production
2022
Ecklonia maxima and the commercial biostimulants produced from it contain various plant growth regulators that are responsible for the growth stimulation recorded in many crops. Auxins are one of the major plant growth regulators contained in E. maxima extracts. The aim of this research was to evaluate the growth-promoting effect of a seaweed extract from E. maxima on lettuce and tomato transplant production under nursery conditions, and to compare the effect of this extract with an equal concentration of synthetic auxin. Two doses of natural or synthetic exogenous auxins (50 or 100 μg L−1) were supplied to the substrate through the irrigation water with an ebb and flow system, 4, …
Quality and Shelf-life of Minimally Processed Cauliflower
2011
Cauliflower has been described as a vegetable with a high nutritional value due to its important content of vitamins, antioxidants and anti-carcinogenic compounds. Cauliflower inflorescences are harvested while they are totally immature, which implies severe changes in nutrient, water and hormonal status. Harvesting and the following processing can cause a severe stress determining the appearance of accelerated senescence symptoms. The effect of processing and cold storage of minimally processed cauliflower were investigated. Florets were treated with antioxidants before storage in PE bags at 4°C for 14 days. During storage period, weight loss, colour, firmness, SSC, pH, titratable acidity,…
From soil to soil-less in horticulture: quality and typicity
2013
In this review, the technique of soil-less cultivation of horticultural crops is analysed, the main differences between this and traditional cultivation techniques are described, and the advantages and disadvantages of each method in relation to the others are identified. Soilless cultivation has revolutionised various sectors of vegetable and floriculture production, and recent years have also seen interest being shown by Italian fruit crop producers, particularly those involved in table grape viticulture. The various issues related to the use of this technique are described in relation to the needs of the substrate, water management, and mineral nutrition of the different species, and to …
Comparing micro-cutting and mini-cutting technique for the clonal propagation of Metrosideros excelsa
2017
public gardens for its foliage and attractive red flowers. M. excelsa plants are commercially propagated by soft and semi-ripe cuttings. Therefore, new and more reliable propagation techniques derived both from conventional and advanced propagation methods should be considered to support Metrosideros nursery development. The mini-cutting and micro-cutting techniques were compared for the clonal propagation of M. excelsa. Ex vitro rooted micro-cuttings resulted superior to mini-cuttings in terms of rooting percentage, root number per cutting and root length by 23.5%, 42.5% and 2.4%, respectively. However, the mini-cutting technique can be considered an alternative reliable propagation method…
Acute and subchronic phytotoxicity of volatile fatty acids (VFAs)
2008
Il vivaismo fragolicolo in Sicilia
2009
Ginger and Turmeric Essential Oils for Weed Control and Food Crop Protection
2019
Ginger and turmeric are two food ingredients that are in high demand due to their flavor and positive effects on health. The biological properties of these spices are closely related to the aromatic compounds they contain. The chemical compositions of their essential oils and their in vitro phytotoxic activity against weeds (Portulaca oleracea, Lolium multiflorum, Echinochloa crus-galli, Cortaderia selloana, and Nicotiana glauca) and food crops (tomato, cucumber, and rice) were studied. Forty-one compounds, accounting for a relative peak area of 87.7% and 94.6% of turmeric and ginger essential oils, respectively, were identified by Gas Chromatography&ndash
Importazione massale di dati in Wikiplantbase: l'esperienza con Wikiplantbase #Sicilia
2019
Il progetto Wikiplantbase è stato avviato nel 2013 al fine di offrire un sistema dove caricare record floristici georeferenziati, liberamente accessibili via internet. Sino ad allora, infatti, esistevano un gran numero di banche dati online sulla nomenclatura, tassonomia, erbari, specie aliene, vegetazione, numeri cromosomici e sequenze di DNA, ma non vi era facile accesso ai dati floristici a grande dettaglio geografico. I record floristici costituiscono i dati primari sulla biodiversità utili per qualsiasi ricerca di biologia vegetale. Al fine di aumentare i dati sulla Sicilia disponibili in Wikiplantbase, si sono elaborati e standardizzati alcuni dei dati liberamente accessibili dal sito…