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Mostrando ítems 1-10 de 2096
Grass-shrub coexistence: understanding root distribution in ecological sites of the Semiarid Chaco, Argentina
(Taylor & Francis, 2021-12)
The objective of this study was to analyze the root distribution of grasses and shrubs, at different soil depths, in two ecological sites (ES): highland (forest) and lowland (grassland). The root density (RD) estimation ...
BEAN ROOT COLONIZATION BY PSEUDOMONAS CEPACIA UPR 5CBEAN ROOT COLONIZATION BY PSEUDOMONAS CEPACIA UPR 5C
(University of Puerto Rico Mayagüez Campus Agricultural Experiment Station, 1994)
Mind the gap among patches in arid plant communities: Rapid root proliferation in response to N addition
(Oxford University Press, 2017-11)
Aims: In arid communities, it has been proposed that individual plants can extend their roots beyond their canopy exploring neighbouring bare ground areas. This becomes relevant in systems where the vegetation is distributed ...
Variation in biomass allocation and root functional parameters in response to fire history in Brazilian savannas
(2021-01-01)
Fire is a fundamental ecological factor in savannas because it affects vegetation dynamics and ecosystem functioning. However, the effects of fire on below-ground compartments, including biomass and root traits, and their ...
Tamm Review: Deep fine roots in forest ecosystems: Why dig deeper?
(2020-06-15)
While the number of studies dealing with fine root dynamics in deep soils layers (depth > 1 m) has increased sharply recently, the phenology, the morphology, the anatomy and the role of deep fine roots are still poorly ...
Root and shoot interactions in a tropical integrated crop–livestock–forest system
(2020-05-01)
Integrated crop–livestock–forest systems (ICLFS) have potential advantages compared to monoculture, but most studies quantifying plant biomass in integrated production systems, have quantified only the aboveground component ...
Do xerophytic and mesophytic perennial grasses differ in soil resource capture and allocation? A field 15N experiment
(Wiley Blackwell Publishing, Inc, 2021-12)
In rangelands, pattern and processes below-ground are important for a complete understanding of their ecology. Recent studies in grass-dominated communities in Europe, North America and South America indicate that root ...
The root of the problem of perennials domestication: is selection for yield changing key root system traits required for ecological sustainability?
(Springer, 2019-02)
Aims: During the process of domestication of herbaceous seed-producing perennial crops, selection for high yield induces a shift in the resource-use strategy from conservative to acquisitive. So far, studies on plant ...
Physiognomic changes in response to herbivory increase carbon allocation to roots in a temperate grassland of central Argentina
(Springer, 2019-08)
In most temperate grasslands, cattle grazing can promote physiognomic changes on plant communities, as well as changes in species growth patterns. Through these changes in vegetation, cattle grazing can generate changes ...
Difference in hydroxamic acid content in roots and root exudates of wheat (Triticum aestivum L.) and rye (Secale cereale L.): Possible role in allelopathy
(Kluwer Academic Publishers-Plenum Publishers, 1991)
Hydroxamic acids (Hx) produced by some cereal crops have been associated with allelopathy. However, the release of Hx to the soil by the producing plant-an essential condition for a compound to be involved in allelopathy-has ...