Allium Articles
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Oxidative damage and antioxidant response of Allium cepa meristematic and elongation cells exposed to metronidazole
The toxicity of metronidazole (MTZ) in meristematic and elongation zones of Allium cepa roots was analyzed for 30 h of exposition. Toxic effects were evaluated by lipid peroxidation (content of thiobarbituric‐reactive substances [TBARS]), reduced glutathione (GSH) levels, ascorbate acid and dehydroascorbate acid content, and enzymatic activities of superoxide dismutase and catalase. The root ...
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Effects of Aspergillus niger in onion bulbs (Allium cepa L.) stored in the post–harvest phase
Onion bulbs were stored in the field, in piles until its commercialisation but the bulbs may be affected by fungal diseases. The objective was to assess the effects of the temperature (T), relative humidity (RH) within the piles, the water percentage (WP) and soluble solids (SS) of the bulbs over Aspergillus niger incidence. Bulbs of Cobriza INTA, Antártica INTA, Valcatorce INTA, Valuno ...
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Copper induced root growth inhibition of Allium cepa var. Agrogarum L. involves disturbances in cell division and DNA damage
Copper (Cu) is considered an indispensable microelement for plants. However, excessive Cu is toxic and disturbs several processes in the plant. The present study addressed the effects of ionic Cu (2.0 µM and 8.0 µM) on mitosis, microtubule cytoskeleton and DNA in root tip cells of Allium cepa var. agrogarum L., in order to better understand Cu toxicity on plant root systems. Results indicated ...
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Oxidative potential of UV‐A irradiated or non‐irradiated suspensions of TiO2 or SiO2 nanoparticles on Allium cepa roots
The effect of UV‐A irradiated or non‐irradiated suspensions of agglomerates of TiO2 or SiO2 nanoparticles on roots of the onion (Allium cepa) has been studied. The reactive potential of TiO2 nanoparticles which have photocatalytic potential and the non‐photocatalytic SiO2 nanoparticles with the same size of agglomerates was compared. We measured the activity of antioxidant enzyme glutathione ...
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Biosorption of heavy metals by utilising onion and garlic wastes
Onion (Allium cepa L.) and garlic (Allium sativum L.) wastes from market and food canning processes were used for adsorption of Pb2+, Sn2+, Fe2+, Hg2+, As3+ and Cd2+ from multi–component systems at different adsorbent/metal ion ratios. The influence of pH, contact time, temperature and the concentration of adsorbent and adsorbate were studied to optimise the conditions to be utilised on a ...
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Changes in chlorophyll, anthocyanins and phenolic compounds concentration in fresh–cut onion
The minimal processing of onion is practical and convenient to consumers, eliminating the inconvenience of peeling, cutting, unwanted odour and tearing effect. The study aimed to estimate the levels of chlorophyll, anthocyanins and phenolic compounds in fresh–cut onions, triturated in the form. Onions, white and purple, obtained in Pombal–PB were conducted in the Laboratory of Food ...
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The most cultivated crop in the Netherlands: Onion
Did you know that onions are the most cultivated crop in The Netherlands? and that it is the most widely cultivated species of the genus Allium worldwide? This crop is an herbaceous bulbous plant that is cultivated for bulb production either as biannual or perennial, depending on the cultivation conditions. Onions are among the most widely adapted vegetable crops that can be grown under a wide ...
By SOILCARES
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Long-term study of properties of a xerofluvent of the guadalquivir river valley under organic fertilization
The long-term effect of inorganic and organic fertilization in a vegetable crop rotation on soil chemical and biochemical properties was investigated in a trial in southern Spain. Two crops were grown in succession, potato (Solanum tuberosum L.) and a mixed-cropped strawberry–onion (Fragaria vesca L.–Allium cepa L.). Total organic carbon (TOC), Kjeldahl-N, bicarbonate-extractable P (Olsen-P), ...
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White aphids on cannabis plants - how to spot and treat them
Whether you are new to growing indoors or a seasoned professional, one thing is for certain – you can’t take your eye off the ball with pest control! One of the most common pests to plague our grow rooms are the white aphid. Secondary to those are black aphids, which are very similar. If you’ve not experienced an aphid attack yet then count yourself lucky. There is no surefire ...
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