Results 61 to 70 of about 1,310,937 (363)

Exogenous gibberellin can effectively and rapidly break intermediate physiological dormancy of Amsonia elliptica seeds

open access: yesFrontiers in Plant Science, 2022
Accelerated global warming is leading to the loss of plant species diversity, and ex situ preservation of seeds is becoming an increasingly important aspect of species conservation.
Sang Yeob Lee   +15 more
doaj   +1 more source

Meltwater Intrusions Reveal Mechanisms for Rapid Submarine Melt at a Tidewater Glacier [PDF]

open access: yes, 2019
Submarine melting has been implicated as a driver of glacier retreat and sea level rise, but to date melting has been difficult to observe and quantify. As a result, melt rates have been estimated from parameterizations that are largely unconstrained by ...
Amundson, Jason M.   +8 more
core   +1 more source

Gene expression patterns in wheat coleorhiza under cold- and biological stratification

open access: yesMicrobiological Research, 2014
This study assessed germination of wheat seeds under cold and biological stratification and determined the expression level of gibberellins (GA) and abscisic acid (ABA) genes in coleorhiza.
Banerjee, Samiran   +3 more
openaire   +2 more sources

Effect of various lengths of cold stratification period on the germination of wild service tree (Sorbus torminalis) seed samples harvested in the Czech Republic

open access: yesJournal of Forest Science
The paper deals with the assessment of the influence of the length of cold stratification period on the germination parameters of seeds of wild service tree [Sorbus torminalis (L.) Crantz]. The germination tests (4 × 100 seeds) were conducted in two runs
Miroslav Šulitka   +6 more
doaj   +1 more source

Kolmogorov cosmic microwave background sky

open access: yes, 2009
A new map of the sky representing the degree of randomness in the cosmic microwave background (CMB) temperature has been obtained. The map based on estimation of the Kolmogorov stochasticity parameter clearly distinguishes the contribution of the ...
A. A. Kocharyan   +26 more
core   +1 more source

An Analysis of the Combustion Behavior of Ethanol, Butanol, Iso-Octane, Gasoline, and Methane in a Direct-Injection Spark-Ignition Research Engine [PDF]

open access: yes, 2012
Future automotive fuels are expected to contain significant quantities of bio-components. This poses a great challenge to the designers of novel low-CO2 internal combustion engines because biofuels have very different properties to those of most typical ...
Aleiferis, PG   +2 more
core   +2 more sources

Impacts of smoke treatments on germination of cold-stratified seeds in medicinal-rangeland plant Ferula ovina Boiss. (Apiaceae) [PDF]

open access: yesفیزیولوژی محیطی گیاهی, 2019
Ferula ovina Boiss. (Apiaceae) is a perennial rangeland medicinal plant found in the mountainous area of Iran. Due to overexploitation, climate changes in the area, and seed dormancy at time of maturity, the population of this species is being reduced ...
Sanaz Zardari   +4 more
doaj  

Supergranulation as the largest buoyantly driven convective scale of the Sun [PDF]

open access: yes, 2016
Supergranulation is characterized by horizontally divergent flows with typical length scales of 32 Mm in the solar photosphere. Unlike granulation, the size of which is comparable to both the thickness of the radiative boundary layer and local scale ...
Cossette, Jean-Francois   +1 more
core   +3 more sources

Benchmarking Fast-to-Alfven Mode Conversion in a Cold MHD Plasma

open access: yes, 2011
Alfv\'en waves may be generated via mode conversion from fast magneto-acoustic waves near their reflection level in the solar atmosphere, with implications both for coronal oscillations and for active region helio-seismology.
Cranmer   +9 more
core   +1 more source

Response of the North Atlantic surface and intermediate ocean structure to climate warming of MIS 11 [PDF]

open access: yes, 2017
Investigating past interglacial climates not only help to understand how the climate system operates in general, it also forms a vital basis for climate predictions.
Bauch, Henning A.   +5 more
core   +1 more source

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