Results 41 to 50 of about 30,634 (331)

Environmental Regulation of Weed Seed Dormancy and Germination

open access: yesSeeds, 2023
Many weeds produce dormant seeds that are unable to complete germination under favourable conditions. There are two types of seed dormancy: primary dormancy (innate dormancy), in which seeds are in a dormant state upon release from the parent plant, and ...
Mirwais M. Qaderi
doaj   +1 more source

Seed dormancy in alpine species

open access: yesFlora - Morphology, Distribution, Functional Ecology of Plants, 2011
In alpine species the classification of the various mechanisms underlying seed dormancy has been rather questionable and controversial. Thus, we investigated 28 alpine species to evaluate the prevailing types of dormancy. Embryo type and water impermeability of seed coats gave an indication of the potential seed dormancy class.
Brigitta Erschbamer   +3 more
openaire   +3 more sources

Building strength for the long haul toward liberation: What psychology can contribute to the resilience of communities targeted by state‐sanctioned violence

open access: yesAmerican Journal of Community Psychology, Volume 70, Issue 3-4, Page 475-492, December 2022., 2022
Abstract State‐sanctioned violence (SSV) has resounding effects on entire populations, and marginalized communities have long persisted in the work toward liberation despite continued SSV. This paper aims to bridge the gap between the vast scholarship on resilience and the practical challenge of sustaining and thriving in communities targeted by SSV ...
Kris T. Gebhard   +4 more
wiley   +1 more source

Factors Affecting Seed Dormancy and Germination of Greater Bur-Parsley (Turgenia latifolia) [PDF]

open access: yesPlanta Daninha, 2018
: Our knowledge about seed dormancy breaking and environmental factors affecting seed germination of greater bur-parsley (Turgenia latifolia) is restricted.
M. REZVANI   +2 more
doaj   +2 more sources

How the interplay of dormancy and selection affects the wave of advance of an advantageous gene [PDF]

open access: yesarXiv, 2021
In this paper we investigate the spread of advantageous genes in two variants of the F-KPP model with dormancy. The first variant, in which dormant individuals do not move in space and instead form "localized seed banks", has recently been introduced in Blath, Hammer and Nie (2020).
arxiv  

A branching process model for dormancy and seed banks in randomly fluctuating environments [PDF]

open access: yes, 2020
The goal of this article is to contribute towards the conceptual and quantitative understanding of the evolutionary benefits for (microbial) populations to maintain a seed bank (consisting of dormant individuals) when facing fluctuating environmental conditions.
arxiv   +1 more source

Polymorphic homoeolog of key gene of RdDM pathway, ARGONAUTE4_9 class is associated with pre-harvest sprouting in wheat (Triticum aestivum L.). [PDF]

open access: yesPLoS ONE, 2013
Resistance to pre-harvest sprouting (PHS) is an important objective for the genetic improvement of many cereal crops, including wheat. Resistance, or susceptibility, to PHS is mainly influenced by seed dormancy, a complex trait.
Manjit Singh   +3 more
doaj   +1 more source

The compact interface property for the stochastic heat equation with seed bank [PDF]

open access: yesarXiv, 2021
We investigate the compact interface property in a recently introduced variant of the stochastic heat equation that incorporates dormancy, or equivalently seed banks. There individuals can enter a dormant state during which they are no longer subject to spatial dispersal and genetic drift.
arxiv  

After-ripening induced transcriptional changes of hormonal genes in wheat seeds: the cases of brassinosteroids, ethylene, cytokinin and salicylic acid. [PDF]

open access: yesPLoS ONE, 2014
Maintenance and release of seed dormancy is regulated by plant hormones; their levels and seed sensitivity being the critical factors. This study reports transcriptional regulation of brassinosteroids (BR), ethylene (ET), cytokinin (CK) and salicylic ...
Vijaya R Chitnis   +5 more
doaj   +1 more source

Wright-Fisher diffusion and coalescent with a continuum of seed-banks [PDF]

open access: yesarXiv, 2023
This paper generalizes the strong seed-bank model introduced in arXiv:1411.4747 to allow for more general dormancy time distributions, such as a type of Pareto distribution. Inspired by the method of approximation using models with countably many seed-banks proposed by arXiv:2209.10086, we introduce the Wright-Fisher diffusion and coalescent with a ...
arxiv  

Home - About - Disclaimer - Privacy