Results 311 to 320 of about 1,310,937 (363)

Phenomenon of Mechanoinduced Atomic Stratification in Alloys under Cold Plastic Strain

Russian Physics Journal, 2001
Low-temperature (24°C) redistribution of nickel in K12N30 and K12N40 stable austenitic steels under strong (e > 9) cold shear strain at a pressure of 8 GPa is investigated. The strain-induced atomic stratification of FCC alloys is identified from the enhanced alloy magnetization and the occurrence of ferromagnetic microregions with vastly higher Curie ...
A. I. Deryagin, V. A. Zavalishin, V. V. Sagaradze, A. P. Kuznetsov   +3 more
openaire   +1 more source

Cold Soaking—A Short-Cut Substitute for Stratification?

Journal of Forestry, 1950
Abstract Exploratory tests indicate that cold-water soaking of seeds of some Lake States conifers for one to two weeks may be as effective in overcoming internal dormancy as cold stratification for one to three months.
openaire   +1 more source

Does cold stratification level out differences in seed germinability between populations?

Plant Ecology, 1998
Populations of seeds can vary greatly in their dormancy-breaking and germination characteristics. The purpose of this study was to determine if such dormancy differences are levelled out by cold stratification. Seeds of 33 annual weed species, each represented by three populations, were tested in light and darkness 7 weeks after harvest and after two ...
Per Milberg, Lars Andersson
openaire   +1 more source

Safety oriented analysis of cold helium–air mixture formation and stratification

Cryogenics, 2006
Abstract Cryogenic installations of superconducting accelerators contain significant amount of high density helium, mostly filling the cryostats and headers located in underground tunnels and caverns. In the case of emergency relief of the helium, oxygen deficiency hazard arises.
Maciej Chorowski, Gabriela Konopka-Cupiał, Germana Riddone   +2 more
openaire   +1 more source

Effects of Stratification on Surface Frontogenesis: Warm and Cold Fronts

Journal of the Atmospheric Sciences, 1984
Abstract The role of the ambient stratification in semigeostrophic surface frontogenesis is examined. Model fronts forming in regions of large static stability 1) are weaker, 2) are tilted more toward the horizontal, and 3) propagate more slowly toward the warm air than fronts forming in regions of small static stability. These results are discussed in
openaire   +1 more source

Cold stratification requirements for seed dormancy-break differ in soil moisture content but not duration for alpine and desert species

Plant and Soil, 2021
Dali Chen, Zhen Yuan, X. Luo, Lingjie Yang, Xianglai Chen, Zuxin Zhang, Jingjing Wang, Xiaowen Hu   +7 more
semanticscholar   +1 more source

Effects of temperature, salinity and cold stratification on seed germination in halophytes

Nordic Journal of Botany, 2012
Salt tolerance of halophytes corresponds with the habitat requirement of the species. It is an important factor during the germination phase and it can determine successful establishment. This paper presents the effects of alternating temperature–light regimes (4/8°C, 10/20°C, 20/32°C; 12 h dark: 12 h light) and different salinity ...
Batoul N. Al‐Hawija, Monika Partzsch, Isabell Hensen   +2 more
openaire   +1 more source

Cold stratification of oak seeds

Samples from freshly harvested seeds and seeds with 60 days' cold stratification in Quercus ...
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Dormancy removal by cold stratification increases glutathione and S-nitrosoglutathione content in apple seeds

Plant Physiology and Biochemistry, 2019
S-nitrosoglutathione (GSNO), an integral metabolite of nitric oxide (NO) biochemistry is reduced by S-nitrosoglutathione reductase (GSNOR) (EC 1.2.1.46), leading to formation of glutathione in oxidised form (GSSG), further reduced to GSH by glutathione reductase (GR).
Katarzyna Ciacka, Urszula Krasuska, Katarzyna Otulak-Kozieł, Agnieszka Gniazdowska   +3 more
openaire   +2 more sources

Cold Stratification and Exogenous Nitrates Entail Similar Functional Proteome Adjustments during Arabidopsis Seed Dormancy Release

Journal of Proteome Research, 2012
Despite having very similar initial pools of stored mRNAs and proteins in the dry state, mature Arabidopsis seeds can either proceed toward radicle protrusion or stay in a dormant state upon imbibition. Dormancy breaking, a prerequisite to germination completion, can be induced by different treatments though the underlying mechanisms remain elusive ...
Arc, Erwann, Chibani, Kamel, Grappin, Philippe, Jullien, Marc, Godin-Pérénnez, Beatrice, Cueff, Gwendal, Valot, Benoit, Balliau, Thierry, Job, Dominique, Rajjou, Loïc   +9 more
openaire   +3 more sources