Results 21 to 30 of about 13,020 (261)

A War of Words: Do Conflict Metaphors Affect Beliefs about Managing “Unwanted” Plants?

Societies, 2013
Woody plants have increased in density and extent in rangelands worldwide since the 1800s, and land managers increasingly remove woodland plants in hopes of restoring pre-settlement conditions and/or improved forage for grazing livestock.
Cameron G. Nay, Mark W. Brunson
doaj   +1 more source

De novo transcriptome sequencing and gene co-expression reveal a genomic basis for drought sensitivity and evidence of a rapid local adaptation on Atlas cedar (Cedrus atlantica)

Frontiers in Plant Science, 2023
IntroductionUnderstanding the adaptive capacity to current climate change of drought-sensitive tree species is mandatory, given their limited prospect of migration and adaptation as long-lived, sessile organisms.
Irene Cobo-Simón, Irene Cobo-Simón, Jèssica Gómez-Garrido, Anna Esteve-Codina, Marc Dabad, Tyler Alioto, Julin N. Maloof, Belén Méndez-Cea, José Ignacio Seco, Juan Carlos Linares, Francisco Javier Gallego   +10 more
doaj   +1 more source

Application of Proteomics to the Study of Pollination Drops

Applications in Plant Sciences, 2013
Premise of the study: Pollination drops are a formative component in gymnosperm pollen-ovule interactions. Proteomics offers a direct method for the discovery of proteins associated with this early stage of sexual reproduction.
Natalie Prior, Stefan A. Little, Cary Pirone, Julia E. Gill, Derek Smith, Jun Han, Darryl Hardie, Stephen J. B. O'Leary, Rebecca E. Wagner, Tyra Cross, Andrea Coulter, Christoph Borchers, Robert W. Olafson, Patrick von Aderkas   +13 more
doaj   +1 more source

Stress-induced nitric oxide and adaptive plasticity in conifers

Journal of Forest Science, 2002
The excitable properties of conifer protoplasm consist of nitric oxide (NO) bursts that prime and prepare chemical messengers for the transmission of stressful environmental signals.
D. Durzand
doaj   +1 more source

An economic analysis and seed yield assessment of alternative breeding strategies in a white spruce tree improvement program

The Forestry Chronicle, 2023
Tree improvement programs in Alberta have been primarily based on selections from open-pollinated wild stand trees, without systematic breeding of elite parents through controlled pollination. This strategy has resulted in relatively slow advancements in
Esteban Galeano, Simon Bockstette, Barb R. Thomas   +2 more
doaj   +1 more source

Enzymes of Glyoxylate in Conifers [PDF]

Plant Physiology, 1968
The high level of lipids in seeds of some species of conifers suggested that the glyoxylate cycle might have a role in conifer seed metabolism.Six species (Pinus pinea, Pinus pinaster, Pinus canariensis, Pinus strobus, Abies alba, and Cupressus sempervirens) were investigated for their lipid content and malate synthase and isocitrate lyase level.
A M, Firenzuoli, P, Vanni, E, Mastronuzzi, A, Zanobini, V, Baccari   +4 more
openaire   +2 more sources

Conifers

Bulletin of popular information - Arnold Arboretum, Harvard University., 1919
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +7 more sources

Linking community structure and climate vulnerability in desert plant assemblages of southern California

American Journal of Botany, EarlyView.
Abstract Premise Desert plant assemblages in southern California provide an opportunity to link patterns of community structure with climate‐driven vulnerability in a rapidly changing environment. California sustains an exceptionally diverse flora of approximately 4300 plant species, with 31% identified as endemic.
Hector Zumbado‐Ulate, Luis E. Barrios, Danelle A. Baronia, G. Darrel Jenerette, Lynn C. Sweet   +4 more
wiley   +1 more source

Charred conifer remains from the Late Oligocene – Early Miocene of Northern Hesse (Germany)

Acta Palaeobotanica, 2018
Fire is an important constituent of many modern and fossil ecosystems. During the last decades a large number of studies have dealt with fires in pre-Cenozoic ecosystems. Evidence for the occurrence of Palaeogene and Neogene wildfires (e.g.
DIETER UHL, ANDRÉ JASPER
doaj   +1 more source

Taxonomic reassessment of fossil Sequoia and Protosequoia from the Upper Miocene of Central Honshu, Japan, with implications for leaf morphological variation in extant S. sempervirens

American Journal of Botany, EarlyView.
Abstract Premise Since its emergence in the Mesozoic, Sequoia (Cupressaceae) has been considered to possess conserved leaf morphology. However, recent studies have shown that the leaves of extant S. sempervirens become smaller, with a scale form, with increasing tree height.
Shun Ikeda, Arata Momohara
wiley   +1 more source