Results 11 to 20 of about 7,882 (249)

A minimal mechanistic model of plant responses to oxygen deficit during waterlogging [PDF]

open access: yesQuantitative Plant Biology
Plants exhibit diverse morphological, anatomical and physiological responses to hypoxia stress from soil waterlogging, yet coordination between these responses is not fully understood.
Silou Chen   +2 more
doaj   +2 more sources

Variable tree rooting strategies are key for modelling the distribution, productivity and evapotranspiration of tropical evergreen forests [PDF]

open access: yesBiogeosciences, 2021
A variety of modelling studies have suggested tree rooting depth as a key variable to explain evapotranspiration rates, productivity and the geographical distribution of evergreen forests in tropical South America.
B. Sakschewski   +15 more
doaj   +1 more source

Effects of Slope Aspect and Rainfall on Belowground Deep Fine Root Traits and Aboveground Tree Height

open access: yesFrontiers in Plant Science, 2021
The vertical root distribution and rooting depth are the main belowground plant functional traits used to indicate drought resistance in arid and semiarid regions.
Ma Lihui   +6 more
doaj   +1 more source

The Number of Rooted Trees of Given Depth [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2013
In this paper it is shown that the logarithm of the number of non-isomorphic rooted trees of depth $k\geq 3$ is asymptotically $\frac{\pi^2}{6}\cdot\frac{n}{\log\log\dots\log n}$, where $\log$ is iterated $k-2$ times in the denominator.
Péter Pál Pach   +3 more
openaire   +2 more sources

Revisiting the two-layer hypothesis: coexistence of alternative functional rooting strategies in savannas. [PDF]

open access: yesPLoS ONE, 2013
The two-layer hypothesis of tree-grass coexistence posits that trees and grasses differ in rooting depth, with grasses exploiting soil moisture in shallow layers while trees have exclusive access to deep water.
Ricardo M Holdo
doaj   +1 more source

The effect of drought and interspecific interactions on depth of water uptake in deep- and shallow-rooting grassland species as determined by δ18O natural abundance [PDF]

open access: yesBiogeosciences, 2014
Increased incidence of drought, as predicted under climate change, has the potential to negatively affect grassland production. Compared to monocultures, vertical belowground niche complementarity between shallow- and deep-rooting species may be an ...
N. J. Hoekstra   +3 more
doaj   +1 more source

The square root depth wave equations [PDF]

open access: yesProceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2010
We introduce a set of coupled equations for multi-layer water waves that removes the ill-posedness of the multi-layer Green–Naghdi (MGN) equations in the presence of shear. The new well-posed equations are Hamiltonian and in the absence of imposed background shear, they retain the same travelling wave solutions as MGN.
Cotter, CJ, Holm, DD, Percival, JR
openaire   +3 more sources

Asparagus (Asparagus officinalis L.) Root Distribution Varies with Cultivar during Early Establishment Years

open access: yesHorticulturae, 2023
Soil type, crop management practices, annual plant growth patterns, and seasonal changes have all been shown to influence asparagus (Asparagus officinalis) roots.
Daniel Drost
doaj   +1 more source

Genotypic Variability in Architectural Development of Mungbean (Vigna radiata L.) Root Systems and Physiological Relationships With Shoot Growth Dynamics

open access: yesFrontiers in Plant Science, 2021
Selection for root system architectures (RSA) to match target growing environments can improve yields through better adaptation to water and nutrient-limiting conditions in grain legume crops such as mungbean. In this study, the architectural development
Vijaya Singh, Michael Bell, Michael Bell
doaj   +1 more source

Variability of root traits in spring wheat germplasm. [PDF]

open access: yesPLoS ONE, 2014
Root traits influence the amount of water and nutrient absorption, and are important for maintaining crop yield under drought conditions. The objectives of this research were to characterize variability of root traits among spring wheat genotypes and ...
Sruthi Narayanan   +3 more
doaj   +1 more source

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