Results 121 to 130 of about 36,131 (317)

Gravitropic Gene Expression Divergence Associated With Adaptation to Contrasting Environments in an Australian Wildflower

open access: yesMolecular Ecology, Volume 34, Issue 15, August 2025.
ABSTRACT Plants adapt to their local environment through complex interactions between genes, gene networks and hormones. Although the impact of gene expression on trait regulation and evolution has been recognised for many decades, its role in the evolution of adaptation is still a subject of intense exploration.
Zoe Broad   +7 more
wiley   +1 more source

Growth response and water relations of three-year-old planted black spruce and jack pine seedlings in site prepared lichen woodlands [PDF]

open access: yes, 2006
Black spruce-lichen woodlands are low tree density stands within the closed crown, North American boreal forest that represent a diverging post-fire type of black spruce forest.
Bernier, Pierre Y.   +3 more
core   +2 more sources

Results of acceptance tests of the machine for extraction and scarification of clover seeds КС-0.2

open access: yesАграрная наука Евро-Северо-Востока, 2016
Prototype of the machine for extraction and scarification of clover seeds КС-0.2 was tested. The machine is used for extraction of seeds from the wad of clover and scarification of hard grass seed. The purpose of the test -determination of agro-technical,
A. I. Burkov   +2 more
doaj   +1 more source

Differential gene reactions reveal drought response strategies in African acacias

open access: yesThe Plant Journal, Volume 123, Issue 3, August 2025.
SUMMARY Drought tolerance involves a complex series of genetic reactions that expand over time as water stress intensifies. We investigated gene expression reactions over 43 days of drought stress in two widespread African savanna trees: the umbrella acacia (Vachellia tortilis) and the splendid thorn acacia (Vachellia robusta).
Ellen I. Weinheimer   +4 more
wiley   +1 more source

Seed production studies in Ruzi grass (Brachiaria ruziziensis Germain and Everard) : a thesis presented in partial fulfilment of the requirement for the degree of Master of Agricultural Science in Seed Technology, at Massey University, Palmerston North, New Zealand [PDF]

open access: yes, 1994
The effect of photoperiod on seed production in Ruzi grass (Brachiaria ruziziensis) was investigated in order to gain a better understanding of reproductive behaviour. The experiment was conducted in a controlled temperature glasshouse which provided day
Narongrit, Wongsuwan
core  

\u27Texas Maroon’ Bluebonnet [PDF]

open access: yes, 2000
The Texas state flower, the bluebonnet, encompasses all six of the Lupinus species native to Texas. The most widespread and popular bluebonnet, Lupinus texensis Hook., is a winter annual that produces violet-blue [violet-blue group 96A, Royal ...
Davis, Tim D.   +5 more
core   +2 more sources

SUPERAÇÃO DA DORMÊNCIA EM SEMENTES DE PINHA

open access: yesRevista Caatinga, 2008
The work had as objective to evaluate the germination of seeds of sugar apple (Annona squamosa L.), submitted the treatments daily pre-germinative, under controlled conditions.
Saulo Almeida Sousa   +4 more
doaj  

The HIV-associated tuberculosis epidemic--when will we act?

open access: yes, 2010
Despite policies, strategies, and guidelines, the epidemic of HIV-associated tuberculosis continues to rage, particularly in southern Africa. We focus our attention on the regions with the greatest burden of disease, especially sub-Saharan Africa, and ...
Chimzizi, Rhehab   +9 more
core   +1 more source

Epithelial Immunization Induces Polyfunctional CD8+ T Cells and Optimal Mousepox Protection. [PDF]

open access: yes, 2014
We assessed several routes of immunization with vaccinia virus (VACV) in protecting mice against ectromelia virus (ECTV). By a wide margin, skin scarification provided the greatest protection. Humoral immunity and resident-memory T cells notwithstanding,
A. E. Snook   +27 more
core   +2 more sources

Métodos de superação de dormência de sementes de Schinopsis brasiliensis

open access: yesRevista Verde de Agroecologia e Desenvolvimento Sustentável, 2016
Schinopsis brasiliensis é uma das espécies ameaçadas de extinção na Caatinga do nordeste brasileiro. Assim, objetivou-se avaliar diferentes tratamentos pré-germinativos afim de superar a dormência em  sementes de Schinopsis brasiliensis.
M. F. B. Coelho   +4 more
doaj   +1 more source

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