rooting Articles
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Accumulation of contaminants of emerging concern in food crops, part two: Plant distribution
Arid agricultural regions often turn to using treated wastewater (reclaimed water) for irrigation of food crops. Concerns arise, however, when considering the potential for persistent contaminants of emerging concern (CECs) to accumulate into plants intended for human consumption. This work examined the accumulation of a suite of nine CECs into two representative food crops, lettuce and ...
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Soil moisture dynamics modeling considering multi-layer root zone
The moisture uptake by plant from soil is a key process for plant growth and movement of water in the soil–plant system. A non-linear root water uptake (RWU) model was developed for a multi-layer crop root zone. The model comprised two parts: (1) model formulation and (2) moisture flow prediction. The developed model was tested for its efficiency in predicting moisture depletion in a ...
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Ecotoxicological responses of three ornamental herb species to cadmium
Cadmium is one of the most toxic elements. The ideal vegetal cover should be ensured by the selection of appropriate plant species for successful phytoremediation. In the present study, the ecotoxicological effects of Cd on the following 3 ornamental herbs were investigated: Italian ryegrass (Lolium multiflorum Lam.), white clover (Trifolium repens L.), and alfalfa (Medicago sativa L.). Based ...
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Effects of exogenous citric acid and malic acid addition on nickel uptake and translocation in leaf mustard (Brassica juncea var. foliosa Bailey) and Alyssum corsicum
The effects of exogenous citric acid and malic acid on the uptake of nickel (Ni) by the Ni hyperaccumulator Alyssum corsicum and the non-accumulator leaf mustard were studied. Citric acid and malic acid addition reduced Ni uptake by the roots of leaf mustard. Malic acid addition yielded no significant effect on Ni translocation in leaf mustard. Citric acid addition reduced Ni concentration of ...
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How To Process Garri From Cassava Tubers?
How To Process Garri From Cassava Tubers? Garri, which is made by fermenting and roasting cassava root, is one of the staple foods in West African cuisine. Also known as gari, garry, tapioca, garium sulphate, farofa, and poi, this fermented food is available in fine, medium and coarse grain forms, and in white and yellow colors. The texture comes from how the root is ground and sieved, and the ...
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QTL analysis of root architecture traits and low Phosphorus tolerance in an Andean bean population
Tolerance to low P soils is a desirable trait in common bean (Phaseolus vulgaris L.) cultivars grown in acid-weathered soils. Genetic variability in response to P-deficient soils exists in the Andean gene pool. G19833, a low P–tolerant indeterminate Andean landrace, has been evaluated for quantitative trait loci (QTL) and tolerance to low P in combination with Mesoamerican parents. Our goal was ...
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Differential uptake and translocation of Β‐HCH and dieldrin by several plant species from hydroponic medium
To compare the uptake and translocation of hydrophobic organic chemicals by plant species, the authors performed uptake experiments with β‐1,2,3,4,5,6‐hexachlorocyclohexane (β‐HCH) and 1,2,3,4,10,10‐Hexachloro‐6,7‐epoxy‐1,4,4a,5,6,7,8,8a‐octahydro‐endo‐1,4‐exo‐5,8‐dimethanonaphthalene (dieldrin) using 5 species: Hordeum vulgare, Glycine max, Solanum lycopersicum, Brassica oleracea, and ...
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Morphological responses of sugarcane to long-term flooding
Sugarcane (Saccharum spp.) in south Florida is often subjected to flooding due to intense summer rainfall or tropical storms. While there has been considerable research on the response of sugarcane cultivars to high water tables, there is a lack of information on cultivar morphological adaptation to long-term flooding. An experiment was established in Belle Glade, FL to examine: (i) effects of a ...
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L.J.Seeds, Australia Pty Ltd A100 case study
Subject: Amnite A100 Application: Continental Cucumber Environment: Greenhouse, Plastic Covered Growing System: Hydroponics, Run To Waste Media: Coal Ash Reservoir: Yes, 2.5cm Deep Plant density: 2.5 Plants Per Square Metre Application Frequency: Weekly Application Method: Via Irrigation Lines Direct To Root System Observations Amnite A100 was introduced to the plants on the 25th April. Weather ...
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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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Toxic effects of wastewater from various phases of monosodium glutamate production on seed germination and root elongation of crops
To make a comprehensive assessment on monosodium glutamate (MSG) wastewater pollution, a pollution exposure experiment was carried out on the seed germination and root elongation of wheat, Chinese cabbage and tomato by using the wastewater discharged from different processing phases of MSG production. The results showed that there were significantly positive linear relationships between the ...
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Biomass Cooking Fuel - Case Study
The two case studies below demonstrate the production of cooking charcoal using Pyrocal CCT in two very different economic and country settings. Carbon Roots International The mission of Carbon Roots International (CRI) is to enable the adoption of sustainable green charcoal in Haiti and the broader developing world. CRI’s endeavours are supported by various aide ...
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Response of native Southeastern U.S. Legumes to root-knot nematodes
Identification of forage legumes well adapted to the southeastern United States is complicated by climatic, soil, and biotic factors. Among the pests that impact forage legume persistence are root-knot nematodes (RKNs) (Meloidogyne spp.). We hypothesized that legumes native to the region should have higher levels of resistance to RKN species that are common in this region due to long-term natural ...
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Summer Irrigation Makes the Crop
Summer Irrigation Makes the Crop Summertime. At this point in the growing season, fruit for tree and vine crops has long been set. Now, the challenge is to bring as much of this yield potential to harvest, and at the desired quality. Irrigation management is crucial to achieve this goal. For most crops, irrigation should provide readily available soil moisture continuously so that fruit and ...
By Farm(x)
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2013: Silkstone State School Parking Bays - Case Study
At Silkstone State School QLD a contentious issue arose. The school required car parking and a sealed one at that. But in the proposed car park was a huge old tree. The tree could be cut down and the roots dug out or the tree could be left, with open soil above the root system to allow for infiltration to keep the tree healthy; but this would lose at least six car spaces. What was to be ...
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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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How do you make a tree root barrier?
With the development of the economy, people are more and more aware of the importance of environmental protection, and more and more green spaces are planned in cities’ construction. Yet, because trees root will occupy most of the underground space, the cement panels and roads in the garden are fragmented, so the product of root barrier appeared, and now HDPE LLDPE geomembrane is used in ...
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Impacts of altered light spectral quality on warm season turfgrass growth under greenhouse conditions
Warm-season turfgrass quality declines under shade due to reduced photosynthesis, increased disease pressure, reduced carbohydrate production, tree root competition, and reduced lateral stem growth. Another factor limiting turfgrass growth and development under tree shade is variable qualities of light filtered by trees. However, effects of various filtered wavelengths on turfgrass performance ...
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Relationship between subsoil nitrogen availability and sugarbeet processing quality
The loss of sugar content and processing quality during the harvest period happens frequently in sugarbeet (Beta vulgaris L. ssp. vulgaris) grown in the Po Valley of Italy. The aim of this study was to assess the consequences on sugar content and quality of excess mineral N in the deep soil explored by the roots. Soil mineral N concentration and other chemical properties to a 3-m depth were ...
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An alternate wetting and moderate soil drying regime improves root and shoot growth in rice
A major challenge in rice (Oryza sativa L.) production is to achieve the dual goal of increasing food production and saving water. This study aimed to investigate if alternate wetting and drying regimes could improve root and shoot growth and consequently increase grain yield and water use efficiency (WUE). Two rice varieties were field-grown at Yangzhou, China in 2005 and 2006. Three irrigation ...
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