نتایج جستجو برای: root diameter

تعداد نتایج: 246615  

Journal: :Plant, cell & environment 2007
G G Striker P Insausti A A Grimoldi A S Vega

The objective of this work was to study the existence of a trade-off between aerenchyma formation and root mechanical strength. To this end, relationships among root anatomical traits and mechanical properties were analysed in plant species with contrasting root structural types: Paspalidium geminatum (graminaceous type), Cyperus eragrostis (cyperaceous type), Rumex crispus (Rumex type) and Pla...

Journal: Desert 2012
A. Mohebby A. Tavili E. Zandi Esfahan M. Jafari M. Ramezani S.A. Javadi

It has often been stated or implied that grazing is an important factor in the land degradation process, a suggestion supported by various research projects, and this study investigated the effect of livestock grazing on stem height, crowncover, production, basal diameter, stem biomass, litter, leaf-stem index (leaf to stem weight) , root diameter and weight and seed production per individual o...

Journal: :desert 2013
a. mohebby m. jafari a. tavili s.a. javadi e. zandi esfahan

it has often been stated or implied that grazing is an important factor in the land degradation process, a suggestion supported by various research projects, and this study investigated the effect of livestock grazing on stem height, crowncover, production, basal diameter, stem biomass, litter, leaf-stem index (leaf to stem weight) , root diameter and weight and seed production per individual o...

Root-knot nematodes cause physiological and anatomical disorders in plants. The present study contains the results of an investigation of the effect of Meloidogyne incognita race2 on the growth of roots and aerial organs of tomato under greenhouse conditions. The experiment in a completely randomized design split split plot on two susceptible (Falat Y) and tolerante (Gina VF) tomatoes variety w...

Journal: :Plant physiology 2016
Dagmar van Dusschoten Ralf Metzner Johannes Kochs Johannes A Postma Daniel Pflugfelder Jonas Bühler Ulrich Schurr Siegfried Jahnke

Precise measurements of root system architecture traits are an important requirement for plant phenotyping. Most of the current methods for analyzing root growth require either artificial growing conditions (e.g. hydroponics), are severely restricted in the fraction of roots detectable (e.g. rhizotrons), or are destructive (e.g. soil coring). On the other hand, modalities such as magnetic reson...

Journal: :Pediatrics 2006
Benyu Jiang Keith M Godfrey Christopher N Martyn Catharine R Gale

OBJECTIVE Epidemiologic studies have shown associations between impaired fetal growth and risk for coronary heart disease in adults. The underlying mechanisms are unknown. We investigated whether restricted intrauterine growth affects cardiac structure. METHODS We performed echocardiography on 216 9-year-old children who were measured previously at birth. The diameter of the coronary left and...

2017
Da-Lu Liu Xu Wang Wen-Guang Chu Na Lu Wen-Juan Han Yi-Kang Du San-Jue Hu Zhan-Tao Bai Sheng-Xi Wu Rou-Gang Xie Ceng Luo

Cervical radiculopathic pain is a very common symptom that may occur with cervical spondylosis. Mechanical allodynia is often associated with cervical radiculopathic pain and is inadequately treated with current therapies. However, the precise mechanisms underlying cervical radiculopathic pain-associated mechanical allodynia have remained elusive. Compelling evidence from animal models suggests...

2016
Yuanjun Yang Lihua Chen Ning Li Qiufen Zhang

The stabilization of slopes by vegetation has been a topical issue for many years. Root mechanical characteristics significantly influence soil reinforcement; therefore it is necessary to research into the indicators of root tensile properties. In this study, we explored the influence of root moisture content on tensile resistance and strength with different root diameters and for different tre...

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