Results 141 to 150 of about 619,187 (360)

Microsomal nucleoprotein particles from pea seedlings [PDF]

open access: yes, 1956
Ultracentrifugal analysis of an extract of pea epicotyls, previously freed of debris and larger particles by centrifugation at 40,000 g for 10 minutes, has revealed the presence of a major component which possesses a sedimentation coefficient of 74 S ...
Bonner, James   +2 more
core  

BeeRootBot: A Bioinspired Robotic Probe Exhibiting Apical Growth through In Situ Soil Binding

open access: yesAdvanced Intelligent Systems, EarlyView.
This study introduces a novel method for consolidating subterranean exploration pathways in plant‐inspired robots by binding in‐situ soil with beeswax, a biobased material. This simultaneous advancement and wall‐lining process reduces penetration resistance, enhances exploration efficiency, enables communication and resource sharing, and promotes ...
Sachin Sachin   +4 more
wiley   +1 more source

A spatially explicit analysis of seedling recruitment in the terrestrial orchid Orchis purpurea [PDF]

open access: hybrid, 2007
Hans Jacquemyn   +5 more
openalex   +1 more source

Rangewide responses of Mimulus cardinalis to an extreme heat event

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Extreme events are an understudied aspect of ongoing anthropogenic climate change that could play a disproportionate role in the threat that rapid environmental shifts pose to natural populations. Methods We exposed plants originating from seeds that were harvested before (ancestors) and after (descendants) multiple extreme heat events
Lucas J. Albano   +6 more
wiley   +1 more source

Demographic viability of populations of \u3cem\u3eSilene regis\u3c/em\u3e in midwestern prairies: relationships with fire management, genetic variation, geographic location, population size and isolation [PDF]

open access: yes, 1998
We studied the demographic viability of populations of a long-lived iteroparous prairie perennial, Silene regia, in relation to management regimes, population sizes, geographical region (Ohio and Indiana vs.
Dolan, Rebecca W., Menges, Eric S.
core   +1 more source

Wind‐driven seed dispersal differentially promotes seed trapping and retention across alpine plants

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Seed dispersal can mediate species interactions between plants across life stages. Plants can physically stop seed movement (seed trapping) and prevent further dispersal following entrapment (seed retention). We therefore hypothesized seed trapping and retention rates depend on the physical attributes of interacting seeds and plants ...
Courtenay A. Ray   +7 more
wiley   +1 more source

The effect of perennial ryegrass (Lolium perenne) sowing rates on weed establishment, after one year : a thesis presented in partial fulfilment of the requirements for the degree of Master of Applied Science in Plant Science at Massey University [PDF]

open access: yes, 2001
Two trials were conducted to determine whether the weed control benefits of high sowing rates of perennial ryegrass (Lolium perenne) continued into the second year after sowing. Seeds of Scotch thistle (Cirsium vulgare), nodding thistle (Carduus nutans),
Armstrong, Michelle Louise
core  

Purification and properties of oxalate oxidase from barley seedlings.

open access: bronze, 1979
Mamoru Sugiura   +5 more
openalex   +2 more sources

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