Results 41 to 50 of about 101,934 (328)
The sequence of conceptual information in instruction and its effect on retention [PDF]
, 1991 Two experiments were carried out to study the effect of the sequencing of the information in an instructional program. In both experiments, two different ordering principles were used. These principles were based on the relation between the to be learned
Ranzijn, Frederik J.A.
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A remotely sensed pigment index reveals photosynthetic phenology in evergreen conifers
Proceedings of the National Academy of Sciences of the United States of America, 2016 Significance Evergreen photosynthetic activity has been difficult to determine from remote sensing, causing errors in terrestrial photosynthetic carbon uptake models. Using a reflectance chlorophyll/carotenoid index (CCI) sensitive to seasonally changing
J. Gamon +7 more
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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
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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 +10 more
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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 +13 more
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Assessing the Gene Content of the Megagenome: Sugar Pine (Pinus lambertiana). [PDF]
, 2016 Sugar pine (Pinus lambertiana Douglas) is within the subgenus Strobus with an estimated genome size of 31 Gbp. Transcriptomic resources are of particular interest in conifers due to the challenges presented in their megagenomes for gene identification ...
Delfino-Mix, Annette +8 more
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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
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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 +2 more
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Tree differences in primary and secondary growth drive convergent scaling in leaf area to sapwood area across Europe [PDF]
, 2018 open28siTrees scale leaf (AL) and xylem (AX) areas to couple leaf transpiration and carbon gain with xylem water transport. Some species are known to acclimate in AL : AX balance in response to climate conditions, but whether trees of different species ...
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Frontiers in Plant Science, 2019 For large scale production of clonal plants, somatic embryogenesis (SE) has many advantages over other clonal propagation methods such as the rooting of cuttings.
U. Egertsdotter, I. Ahmad, D. Clapham
semanticscholar +1 more source