Topics

Development of a model estimating root length density from root impacts on a soil profile in pearl millet (Pennisetum glaucum (L.) R. Br). Application to measure root system response to water stress in field conditions.

08:00 EDT 22nd July 2019 | BioPortfolio

Summary of "Development of a model estimating root length density from root impacts on a soil profile in pearl millet (Pennisetum glaucum (L.) R. Br). Application to measure root system response to water stress in field conditions."

Pearl millet is able to withstand dry and hot conditions and plays an important role for food security in arid and semi-arid areas of Africa and India. However, low soil fertility and drought constrain pearl millet yield. One target to address these constraints through agricultural practices or breeding is root system architecture. In this study, in order to easily phenotype the root system in field conditions, we developed a model to predict root length density (RLD) of pearl millet plants from root intersection densities (RID) counted on a trench profile in field conditions. We identified root orientation as an important parameter to improve the relationship between RID and RLD. Root orientation was notably found to depend on soil depth and to differ between thick roots (more anisotropic with depth) and fine roots (isotropic at all depths). We used our model to study pearl millet root system response to drought and showed that pearl millet reorients its root growth toward deeper soil layers that retain more water in these conditions. Overall, this model opens ways for the characterization of the impact of environmental factors and management practices on pearl millet root system development.

Affiliation

Journal Details

This article was published in the following journal.

Name: PloS one
ISSN: 1932-6203
Pages: e0214182

Links

DeepDyve research library

PubMed Articles [26129 Associated PubMed Articles listed on BioPortfolio]

Modelling root growth and soil suction due to plant competition.

Previous experimental results show that planting spacing has significant effects on root distribution and soil suction (negative pore water pressure) due to inter-plant competition. However, there is ...

SMAX1/SMXL2 regulate root and root hair development downstream of KAI2-mediated signalling in Arabidopsis.

Karrikins are smoke-derived compounds presumed to mimic endogenous signalling molecules (KAI2-ligand, KL), whose signalling pathway is closely related to that of strigolactones (SLs), important regula...

Tomato root development and N assimilation depend on C and ABA content under different N sources.

Root plasticity is controlled by hormonal homeostasis and nutrient availability. In this work, we have determined the influence of different N regimens on growth parameters and on the expression of ge...

Root dysplasias of human teeth: a review.

Tooth development is a complex physiological process, which goes through bud stage, cap stage, bell stage and root development stage. The aim of this review article is to report the clinical manifesta...

Contrasting common measures of arbuscular mycorrhizal fungal root colonization.

Estimating the abundance of arbuscular mycorrhizal fungi relies entirely on indirect methods, meaning all measures are associated with some variability. The most common methods use microscopic estimat...

Clinical Trials [8361 Associated Clinical Trials listed on BioPortfolio]

An Evaluation of Root Length Measurements Using Intraoral Scan and Panoramic Radiographs

This study will attempt to validate a method of estimating root length on panoramic radiograph by crown measurement on intraoral digital scans.

Accuracy of Electronic Apex Locators ProMark, RootZX II and NRG Rider on Working Length of Multi-rooted Teeth

The purpose of this study is to compare the accuracy of different apex locators. Before root canal therapy, dentists use a device called an electronic apex locator (EAL) to measure the roo...

Effect Of Simultaneous Working Length Control Postoperative Pain

The aim of this study was to evaluate the effect of simultaneous length control during root canal preparation on postoperative pain compared with separate working length determination and ...

Clinical Evaluation of Working Length Determination by Electronic Apex-Locator or Radiography on Adequacy of Final Working Length

Accurate length determination of root canal is essential in root canal therapy. Radiography has been the conventional method for this measurement but recently several in-vitro studies have...

Correlation Between Root Resorption and Dentin Sialoprotein Upon Application of Different Orthodontic Forces.

Since root resorption is a frequent consequence of orthodontic treatment, DSP are non-collagenous dentin-specific matrix proteins postulated to be involved in the mineralization of pre-den...

Medical and Biotech [MESH] Definitions

The part of a tooth from the neck to the apex, embedded in the alveolar process and covered with cementum. A root may be single or divided into several branches, usually identified by their relative position, e.g., lingual root or buccal root. Single-rooted teeth include mandibular first and second premolars and the maxillary second premolar teeth. The maxillary first premolar has two roots in most cases. Maxillary molars have three roots. (Jablonski, Dictionary of Dentistry, 1992, p690)

Chemicals used mainly to disinfect root canals after pulpectomy and before obturation. The major ones are camphorated monochlorophenol, EDTA, formocresol, hydrogen peroxide, metacresylacetate, and sodium hypochlorite. Root canal irrigants include also rinsing solutions of distilled water, sodium chloride, etc.

A procedure for smoothing of the roughened root surface or cementum of a tooth after subgingival curettage or scaling, as part of periodontal therapy.

Insertion of a tapered rod through the root canal into the periapical osseous structure to lengthen the existing root and provide individual tooth stabilization.

A genus of gram-negative, rod-shaped bacteria in the family PHYLLOBACTERIACEAE. They are able to invade root-hairs of a wide range of plants, inciting the production of PLANT ROOT NODULES.

Quick Search


DeepDyve research library

Relevant Topics

Mental Health
Adhd Anorexia Depression Dyslexia Mental Health Psychiatry Schizophrenia Stress Mental health, although not being as obvious as physical health, is very important, causing great unhappiness to those affected, causing add...

Food
Food is any substance consumed to provide nutritional support for the body. It is usually of plant or animal origin, and contains essential nutrients, such as carbohydrates, fats, proteins, vitamins, or minerals. The substance is ingested by an organism ...

Fertility
Fertility is the ability of a couple to conceive, but can related to specifically the man or woman. Various reasons can cause a couple to be infertile, and due to the strong desire of these patients to have <!--LGfEGNT2Lhm-->children, a range of ...


Searches Linking to this Article