root system Articles
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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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Aboveground to root biomass ratios in pea and vetch after treatment with organic fertilizer
Some growth parameters of pea (cv. Pleven 4) and vetch (cv. Obrazets 666) after treatment with organic fertilizer were studied in a field trial carried out at the Institute of Forage Crops, Pleven, Bulgaria. Humustim as organic fertilizer was applied through presowing treatment of seeds, treatment during vegetation and combination between both, at different doses. Ratios of aboveground weight to ...
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Early growth of flint maize landraces under cool conditions
Cold stress is a major factor that limits the success of environmentally sound cultivation of maize in central and northern Europe. This study evaluated the early growth of seven groups of Swiss Flint maize landraces (Zea mays L. ssp. mays) of different geographic origin under controlled cool conditions by assessing shoot and root traits. Measurements of plants, subjected to a permanent cold ...
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Can changes in canopy and/or root system architecture explain historical maize yield trends in the U.S. corn belt?
Continuous increase in the yield of maize (Zea mays L.) in the U.S. Corn Belt has involved an interaction with plant density. A number of contributing traits and mechanisms have been suggested. In this study we used a modeling approach to examine whether changes in canopy and/or root system architecture might explain the observed trends. A maize crop model was generalized so that changes in ...
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Breeding and use of summer-dormant grasses in Southern Australia, with special reference to phalaris
The adaptation of introduced perennial grasses in southern Australia expanded with the discovery of the Mediterranean grass phalaris (Phalaris aquatica L.) as a valuable pasture species, and the introduction of Mediterranean ecotypes of orchardgrass (Dactylis glomerata L.), and tall fescue [Lolium arundinaceum (Schreb.) Darbysh.] displaying summer dormancy. In contrast, native grasses of ...
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Effects of cadmium and arsenic on Pteris vittata under hydroponic conditions
Pterisvittata is known to hyperaccumulate arsenic, and a large number of studies on this fern species can be found in the literature aimed at evaluating its behavior when coexposed to other toxic elements. In the present study, P.vittata was treated with different concentrations of As and/or Cd in a hydroponic system, that is, under complete bioavailability of the elements, with the objective of ...
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Fine root distributions in oilseed and pulse crops
Fine roots are of great importance in the uptake of water and nutrients from, and input of, carbon to the soil. This study determined the proportion of extra fine (0.4 mm contributed a small proportion to the total. For pulses (Cicer arietinum L. chickpea, Pisum sativum L. dry pea, and Lens culinaris Medik. lentil), the proportion of roots in the 0- to 0.2-mm diameter was much smaller than that ...
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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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Wheat: Preparing the Root System for Tillering and Vegetative Growth
The number of tillers is the primary yield component of straw cereals, including wheat, the world’s most widely grown cereal. The number of tillers is fundamental to crop yield development. It will compensate for the loss of plants during sowing due to poor planting. It is directly related to the final number of ears. Three leaves constitute a tiller, and this tiller can be transformed ...
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Relationship between root characteristics of peanut in hydroponics and pot studies
A large root system can be an important character for drought tolerance. Measuring root characteristics in soil medium is tedious, time consuming, and labor intensive. The objective of this study was to determine the association between root characteristics of peanut (Arachis hypogaea L.) grown in hydroponics and in pot experiments. Twelve peanut genotypes were planted in a randomized complete ...
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Sound Advice: Increasing Nutrient Availability and Uptake
Sales agronomists Zach Carlson and Sarah Taylor discuss the relationship between soil microbes and soil health, and how this relationship impacts the bioavailability of the nutrients plants need. The presence of soil microbes makes a functional soil, holding and releasing nutrients that plants require. Proper levels of these microbes reduces plant stress and increases the bioavailability ...
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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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Latest Potato Field Trials Show Excellent Yield Results
We have seen some excellent results in our 2016 potato field trials. Trials undertaken by growers in Cambridgeshire and Lincolnshire on four varieties: Markies, Maris Piper, Sagitta and Divaa have shown yield increases averaging 20% with the use of multi-nutrient phosphite PK MAXX+. Increases in tuber size, uniformity and yield Treated trial plots outperformed control plots on yield, tuber ...
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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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Conservation versus conventional tillage on performance of three different crops
Conservation tillage, besides being more economical, prevents soil erosion and has other beneficial effects on our environment, but few studies have been conducted on differential responses of different crops to conservation tillage. The main objective of this study was to examine the interaction of tillage with crop species. Rainfed field experiments in a strip-plot design with four replicates ...
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Root analysis in the field: Industries & uses
Analysis of the root system is important in ensuring sustainable crop production, reducing nutrient input and irrigation, and protecting soil carbon pools. Getting rapid and frequent images of what is happening underground can help people make timely decisions about agricultural practices to maintain plant health and ensure the judicious use of resources. Root analysis can reduce financial and ...
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Features of impulse sprinkling technology
The principle of non-stop water supply to plants and soil in accordance with their water intake is progressive. Drip irrigation and impulse sprinkling correspond to this principle. Drip irrigation provides optimal water and nutrient regimes directly to the root system of plants. However, this irrigation is not effective enough under conditions of high temperature (over 25–35 °C) as growth ...
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Grasslands Research Featuring CI-600 In-Situ Root Imager and RootSnap! Published in Invasive Plant and Science Management
University of Nebraska researchers Chengchou Han and Stephen L. Young have published their article “Root Growth of Two Perennial Grass Types and Musk Thistle (Carduus nutans) in Temperate Grasslands of North America” in the July/August edition mof Invasive Plant and Science Management. The article details their 2 year study using the CI-600 In-Situ Root Imager and free RootSnap! ...
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An Instrumented Rhizotron to Investigate the Root Growth In Wheat - Case Study
There has been much recent interest in modifying root system properties to overcome the effects of soil abiotic stress on crop growth and yield (Lynch 2007; Ghanem et al. 2011). Plant root systems are usually exposed to heterogeneous environmental conditions due to vertical differences in soil moisture and strength. Strong subsurface layers of soil can confine root systems to shallower soil ...
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Arundo Donax Removal in the Santa Ana River Watershed
Orange County Water District (OCWD) was awarded the Ruth Anderson Wilson Award by the Santa Ana Watershed Project Authority for its collaborative efforts in a program to remove Arundo donax (arundo) from the Santa Ana River watershed. The arundo removal program is also one reason the U.S. Environmental Protection Agency selected OCWD as a Clean Water Partner for 2003. Arundo donax, or the giant ...
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