Results 261 to 270 of about 3,391,638 (305)

A Machine for Determining Root Length

Plant and Soil, 1979
A machine for determining the root length of a sample is described. The machine is basically an opto-electronic scanner. Root segments are cut and placed in water on a glass plate (375×375 mm). The interruption of a light beam moving across the root sample is detected by a photo-diode and the total root length computed. Using this machine a root sample
D Richards
exaly   +2 more sources

Root length, crown height, and root morphology in Turner syndrome

Acta Odontologica Scandinavica, 1994
Root length, crown height, and root morphology were studied on intraoral and panoramic radiographs in 33 Turner syndrome patients aged 7.0-16.7 years, subdivided on the basis of karyotype. Thirty-three normal girls aged 10.2-16.4 years served as controls.
M, Midtbø, A, Halse
openaire   +2 more sources

Correlation of Root Dentin Thickness and Length of Roots in Mesial Roots of Mandibular Molars

Journal of Endodontics, 2014
The purpose of this study was to analyze the relation of tooth length and distal wall thickness of mesial roots in mandibular molars at different locations (ie, 2 mm below the furcation and at the junction between the middle and apical third).Forty-five mandibular first molars were taken, and the length of each tooth was measured.
Shweta, Dwivedi, Chandra Dhar, Dwivedi, Neelam, Mittal   +2 more
openaire   +2 more sources

Repeated-root constacyclic codes of length \(6lp^s\)

Adv. Math. Commun., 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Tingting Wu, Shixin Zhu, Li Liu 0027, Lanqiang Li   +3 more
openaire   +3 more sources

Back to the Roots: Standardizing Root Length Density Terminology

Plant and Soil
Abstract The number of studies investigating root length has increased, particularly in the context of root length measurements observed through windows such as minirhizotrons and rhizoboxes. However, there are currently two obstacles constraining their broader utility: (1) the absence of standardized terminology or units for root ...
Dorte Bodin Dresbøll, Benjamin M. Delory, Tomke S Wacker   +2 more
exaly   +4 more sources

Kiwifruit root systems 1. Root‐length densities

New Zealand Journal of Crop and Horticultural Science, 1988
Abstract Root‐length densities (RLD; root length per unit volume of soil) were measured in core samples taken from nine North Island kiwifruit orchards. Despite differences in vine spacings, root‐stock ages and types, soils, climates, and management, there was a consistent pattern to root systems.
P. W. Gandar, K. A. Hughes
openaire   +1 more source

Interspecific interactions alter root length density, root diameter and specific root length in jujube/wheat agroforestry systems

Agroforestry Systems, 2014
A field study was conducted at Hetian, southern Xinjiang, northwest China, to investigate root morphology as affected by interspecific interactions between jujube (Ziziphus jujuba Mill.) and wheat (Triticum aestivum L.). The treatments comprised (1) sole wheat, (2) 3-, 5- and 7-year-old sole jujube trees, and (3) intercropping of wheat/3-, 5- and 7 ...
B. J. Wang, W. Zhang, P. Ahanbieke, Y. W. Gan, W. L. Xu, L. H. Li, P. Christie, L. Li   +7 more
openaire   +1 more source

Length of life of grass roots

Grass and Forage Science, 1981
AbstractThe length of life of the root axes of a plant was taken as the interval between the prevention of the plant from producing any further axes and the death of the shoot. Of the cultivated species studied Lolium perenne had the shortest lived roots and Dactylis glomerata the longest with Phleum pratense, Festuca arundinacea, F.
openaire   +1 more source

Electrical impedance measurements of root canal length

Dental Traumatology, 1997
Abstract Electronic methods are now widely used during endodontic treatment for the assessment of root canal length. These commonly measure the electrical resistance or impedance between the root canal and the buccal mucosa. A number of studies have been undertaken to determine the accuracy of commercially available instruments.
N, Meredith, K, Gulabivala
openaire   +2 more sources

[Distribution patterns of Fraxinus mandshurica root biomass, specific root length and root length density].

Ying yong sheng tai xue bao = The journal of applied ecology, 2006
Employing soil core method, an investigation in Maoershan Experiment Station was made on the root biomass, specific root length (SRL), and root length density (RLD) of Fraxinus mandshurica plantation (17 yr) within a growth season in stand level. The results showed that the total root biomass was 1,637 g x m(-2), in which, living biomass accounted for ...
Li, Mei, Zhengquan, Wang, Youzhi, Han, Jiacun, Gu, Xiangrong, Wang, Yunhuan, Cheng, Xiu-juan, Zhang   +6 more
openaire   +1 more source