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Root lifespan turnover and efficiency

WebAbout this book. In the course of evolution, a great variety of root systems have learned to overcome the many physical, biochemical and biological problems brought about by soil. … Websynthesize root turnover data for major biomes and plant life forms globally, (2) to generate broadscale patterns of root turnover along climatic gradients, and (3) to contrast regional and local environmental controls over root turnover. We illustrate this last objective by using regional patterns to predict site-level responses to global change.

Regional scale patterns of fine root lifespan and turnover …

WebMar 29, 2002 · The mechanism behind the shorter root lifespan in a warmer environment has been suggested to be based on enhanced metabolism (respiration) which accelerates … WebThe study of root population dynamics is of interest to many disciplines, including crop science, physiology, ecology, and soil science. For example, a better understanding of root … botes mathee https://colonialfunding.net

Root Life Span, Efficiency, and Turnover 22 v3 Plant …

WebOct 4, 2010 · The limited root growth and very short lifespan of roots at the surface soil layers was probably associated with high soil temperatures and tillage practices. The optimal range of temperature for peach root growth is between 12 and 22 °C (Tamási 1986), values that in summer are usually found in deeper soil layers in this region. In this ... WebRoot architectural traits, such as lateral branching and root hair density, are clearly advantageous for phosphorus-use efficiency. However, monitoring these traits and using them for selection in breeding programs is certainly not straightforward. View chapter Purchase book TREE PHYSIOLOGY Root System Physiology WebJul 27, 2005 · Plant fine roots are subject to continual turnover, i.e., old roots die during the plant life cycle and are quickly replaced by new roots. New roots grow partly into undepleted soil areas and can take up nutrients at a higher rate than old roots. ... This indicates that root turnover might be an efficiency mechanism, but not the only one ... hawthorne housing element

(PDF) Impacts of environmental factors on fine root lifespan

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Root lifespan turnover and efficiency

Regional scale patterns of fine root lifespan and turnover under ...

WebEstimates of fine root lifespan and turnover are based on empirical observations and relationships with fine root and whole‐plant traits and apply explicitly to the fine root pool … WebDownload scientific diagram Conceptual models indicating predicted responses of fine root lifespan to increased temperature (top panel) and increased temperature variability (bottom panel).

Root lifespan turnover and efficiency

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WebEissenstat DM, Yanai RD (1997) The ecology of root lifespan. Adv Ecol Res 27:1–62. Google Scholar Eissenstat DM, Yanai RD (2002) Root lifespan, turnover and efficiency. In: Waisel Y, Eshel A, Kafkafi U (eds) Plant roots: the hidden half, 3rd edn. Marcel Dekker, New York, pp 221–238. Google Scholar Webanisms controlling root turnover is likely to be found in the still poorly-defined relation between root function and root age. Yanai etat (1995) introduced a cost-benefit model to explore whether root life span maximizes the efficiency of nutrient capture, with efficiency defined as the ratio of nutrient

WebEstimates of fine root lifespan and turnover are based on empirical observations and relationships with fine root and whole-plant traits and apply explicitly to the fine root pool … Webexplore whether root life span maximizes the efficiency of nutrient capture, with efficiency defined as the ratio of nutrient gained (benefit) per unit carbon expended (cost) on a root …

WebFeb 7, 2013 · Estimates of fine root lifespan and turnover are based on empirical observations and relationships with fine root and whole-plant traits and apply explicitly to … WebMay 16, 2014 · The lifespan of fast-cycling roots is a critical parameter determining a large flux of plant carbon into soil through root turnover and is a biological feature regulating the capacity of a plant to capture soil water and nutrients via root-age-related physiological processes. While the importance of …

WebLike other plant organs, roots have a life history in which they pass from birth to death. The size and population structure of the root system is determined

botes memory programWebMar 1, 1997 · According to the cost-benefit assumption (Eissenstat and Yanai, 1997), warming will shorten the fine root lifespan by increasing metabolic activity, such as root respiration (Burton et al.,... bote spanischWebSep 1, 2013 · Assuming resource optimization, we hypothesized that root lifespan should maximize the lifetime root efficiency or the lifetime benefits relative to the lifetime costs (Yanai et al. 1995). Therefore, roots growing in the N-rich patches that do not become depleted should be longer lived, because they presumably are supplying more of the … hawthorne howarthWebRoot Life Span, Efficiency, and Turnover By David M. Eissenstat, Ruth D. Yanai Book Plant Roots Edition 3rd Edition First Published 2002 Imprint CRC Press Pages 28 eBook ISBN … hawthornehouston.comWebThe turnover coefficient of fine roots <1 mm diameter ranged from 2.6 to 4.4 per year, and the largest values occurred in plots with added K. This study supported the view that biomass and dynamics of fine roots … hawthorne hqWebMar 29, 2002 · Differences in fine root life span between four AM and four ECM tree species using mini‐rhizotrons in a factorial drought experiment in large mesocosms indicate … botes mlWebEstimates of fine root lifespan and turnover are based on empirical observations and relationships with fine root and whole‐plant traits and apply explicitly to the fine root pool that is relatively short‐lived and most active in nutrient and water uptake. botes perfumes