Results 21 to 30 of about 863,190 (311)

Root mass vertical distribution of perennial cool-season grasses grown in pure or mixed swards

open access: yesCiência Rural, 2021
: In this study we tested whether the root biomass of mixtures composed by grass species is greater than their respective monocultures. The treatments were monocultures of Arrhenatherum elatius, Festuca arundinacea, Dactylis glomerata, and a mixture of ...
Valentina Ylluyanka Méndez Moncada   +5 more
doaj   +1 more source

Root Canal System and Morphology of Mandibular Second Molar Using Cone Beam Computed Tomography [PDF]

open access: yes, 2020
Objective: As human 2nd molar teeth demonstrate considerable anatomic complexities and abnormalities in the number of roots and root canals, this study aimed to determine and investigate the root canal system of the mandibular 2nd molar teeth of a sample
Mohammed A. Mahmood
core   +1 more source

Fusarium pseudograminearum and F. culmorum affect the root system architecture of bread wheat [PDF]

open access: yes, 2023
Yield losses of bread wheat due to crown rot can be more severe when drought conditions occur during the grain-filling period. Root architecture characteristics are important for soil exploration and below-ground resource acquisition and are essential ...
Christopher, Jack   +9 more
core   +1 more source

Interaction of Arbuscular Mycorrhizal Fungi and Trichoderma on Growth of Root System and on Yield of Industrial Hemp (Cannabis sativa var. ‘Uso’)

open access: yesBulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca: Horticulture, 2020
Cannabis sativa is an annual herbaceous plant, known worldwide for thousands of years. The propose of this study was to evaluate the effect co-inoculation of Trichoderma harzianum and arbuscular mycorrhizal fungi (AMF) on growth of root system and yield ...
Ioanna KAKABOUKI   +8 more
doaj   +1 more source

Shoot yield drives phosphorus use efficiency in Brassica oleracea and correlates with root architecture traits [PDF]

open access: yes, 2009
The environmental and financial costs of using inorganic phosphate fertilizers to maintain crop yield and quality are high. Breeding crops that acquire and use phosphorus (P) more efficiently could reduce these costs.
Broadley, Martin R   +34 more
core   +1 more source

Source-sink manipulations in Coffea arabica L. and its effect on growth of shoots and root system Manipulação da relação fonte-dreno em Coffea arabica L. e seu efeito no crescimento da parte aérea e do sistema radicular

open access: yesCiência e Agrotecnologia, 2011
This paper investigated changes in growth and carbohydrate content of shoots and root systems in response to source-sink manipulation in field-grown coffee trees. The source-sink manipulations were carried out using manual de-fruiting. Two plots of trees
José Donizeti Alves   +5 more
doaj   +1 more source

The role of root system in silver birch (Betula pendula Roth) dieback in the air-polluted area of Krušné hory Mts

open access: yesJournal of Forest Science, 2003
120 root systems and trunks of 20 years old birch trees and 60 root systems and trunks of 15 years old birch trees affected by defoliation and with no visual symptoms of damage were analyzed in the air-polluted area of Krušné hory Mts. In the given area,
O. Mauer, E. Palátová
doaj   +1 more source

Demystifying roots: a need for clarification and extended concepts in root phenotyping [PDF]

open access: yes, 2018
Plant roots have major roles in plant anchorage, resource acquisition and offer environmental benefits including carbon sequestration and soil erosion mitigation.
Paez-Garcia, Ana   +5 more
core   +1 more source

The Sex Difference in the Pathophysiology of Preterm Birth

open access: yesCells
Preterm birth (PTB) refers to a labor before 37 gestational weeks. This is a major global contributor to neonatal morbidity and mortality. Although fetal sex is frequently treated as a confounding variable in PTB research, relatively few studies have ...
Gain Lee   +3 more
doaj   +1 more source

An integrality theorem of root systems

open access: yesEuropean Journal of Combinatorics, 2003
Let \(\Phi\) be an irreducible root system, and \(\Delta\) be a base for \(\Phi\). It is well known that any root in \(\Phi\) is an integral combination of the roots in \(\Delta\). The authors pose a natural question: If \(S\) is a linearly dependent subset of \(\Phi\), can there be a linearly independent subset of \(S\) which generates \(S\)?
Amitava Bhattacharya   +1 more
openaire   +2 more sources

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