Results 41 to 50 of about 471,634 (160)

In vitro evaluation of root canal preparation using oscillatory and rotary systems in flattened root canals

open access: yesJournal of Applied Oral Science, 2007
OBJECTIVE: The aim of this study was to evaluate the biomechanical preparation of flattened root canals using the following systems: Endo-Eze AET stainless steel oscillatory instruments (Ultradent) and RaCe rotary NiTi instruments (FKG Dentaire ...
Luis Cardoso Rasquin   +2 more
doaj   +1 more source

Physiological and Molecular Mechanisms of Ethylene in Sculpting Rice Root System Architecture

open access: yesAgronomy
The root system of rice (Oryza sativa L.) is a central determinant of stress resilience and yield, functioning in resource acquisition, anchorage, and environmental sensing. This review synthesizes recent advances in understanding how the gaseous hormone
Nan Zhang   +8 more
doaj   +1 more source

Raising and Lowering Operators for Askey-Wilson Polynomials

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2007
In this paper we describe two pairs of raising/lowering operators for Askey-Wilson polynomials, which result from constructions involving very different techniques. The first technique is quite elementary, and depends only on the ''classical'' properties
Siddhartha Sahi
doaj  

Représentation du couvert forestier dans la modélisation hydrologique : comparaison de dix modèles (synthèse bibliographique)

open access: yesBiotechnologie, Agronomie, Société et Environnement, 2014
Forest cover representation in hydrological modeling: a comparison of ten models. A review. There are many hydrological models, some of which can be used for forested environments.
Deraedt, D.   +3 more
doaj  

Root Systems [PDF]

open access: yesBotanical Gazette, 1920
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +2 more sources

Distinct water and phosphorus extraction patterns are key to maintaining the productivity of sorghum under drought and limited soil resources

open access: yesScientific Reports
Nutrient and water limitations contribute to yield losses in semi-arid regions. Therefore, crop rotations incorporating nitrogen-fixing legumes and drought-tolerant sorghum varieties offer a strategy to improve the utilization of scarce soil resources ...
Sara Loftus   +8 more
doaj   +1 more source

The effect of amorphous silica on soil–plant–water relations in soils with contrasting textures

open access: yesScientific Reports
This study investigates how amorphous silica (ASi) influences soil–plant–water interactions in distinct soil textures. A sandy loam and silty clay soil were mixed with 0 and 2% ASi, and their impact on soil retention and soil hydraulic conductivity ...
Mohsen Zarebanadkouki   +4 more
doaj   +1 more source

Characterization of Root and Shoot Traits in Wheat Cultivars with Putative Differences in Root System Size

open access: yesAgronomy, 2018
Root system size is a key trait for improving water and nitrogen uptake efficiency in wheat (Triticum aestivum L.). This study aimed (i) to characterize the root system and shoot traits of five wheat cultivars with apparent differences in root system ...
Victoria Figueroa-Bustos   +3 more
doaj   +1 more source

Declining citrus root systems: Relationship of root systems to top growth and production investigated in citrus orchard rejuvenation program studies

open access: yesCalifornia Agriculture, 1956
The decline of citrus root systems is one of the more serious current problems in production and fruit size. During the past few years, quantitative information has been accumulating on the extent of citrus root decline and its relationship to growth and
G Cahoon, R Harding, D Miller
doaj  

Local Fractal Dimensions and Multifractal Analysis of the Root System of Legumes

open access: yesPlant Production Science, 2000
The fractal dimension (D) is the main concept of fractal geometry. D may have the potential to describe morphology in overall terms for root systems quantitatively.
Kalyani Weerasinghe Ketipearachchi   +1 more
doaj   +1 more source

Home - About - Disclaimer - Privacy