Root life span efficiency and turnover

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August undefined, 2024

WebNov 14, 2012 · First order roots had shorter life spans and higher biomass turnover rates than the second order roots in both species. Biomass turnover estimated by the order … 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

Estimating age-dependent costs and benefits of roots …

WebSchla¨pfer and Ryser 1996), who examined root and leaf turnover in grass species with respect to their growth rate and nutrient availability, found that slower-growing ... long root life span was signiﬁcantly associated with slow root respiration rates, low speciﬁc root length, and low nitrogen-to-carbon (N:C) ratios (Tjoelker et al. 2005 Webroot turnover rate and their sensitivity to changes in root phenology. Estimates of fine root turnover rate were calculated using four common methods relating turn-over to total root … crosscheck powered by ithenticate

Intrinsic and Extrinsic Controls of Fine Root Life Span

WebDec 21, 2001 · The relation between root age and root function is poorly understood, despite its importance to root longevity. • The effect of root age on respiration rates and 32 P-uptake kinetics was determined for roots excavated from mature apple and citrus trees (median root life spans of 30 vs 300 d). WebFeb 14, 2011 · Root life span, efficiency, and turnover; P.J. Gregory Root growth and activity; View more references. Cited by (26) ... Tillage practices effect on root distribution and water use efficiency of winter wheat under rain-fed condition in the North China Plain. Soil and Tillage Research, Volume 146, Part B, 2015, pp. 286-295 ... WebOct 5, 2024 · Global patterns of root turnover for terrestrial ecosystems. Crossref GoogleScholar Google Scholar Gillabel J, Denef K, Brenner J, Merckx R, Paustian K … cross check red

CSIRO PUBLISHING Crop and Pasture Science

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

WebMar 29, 2002 · It is hypothesized that the cost of fine root construction per unit root length would be negatively correlated with the rate at which root length is shed, and four citrus … Webfor roots excavated from mature apple and citrus trees (median root life spans of 30 vs 300 d). To evaluate whether root longevity maximizes the efficiency of nutri-ent capture, daily … crosscheck quality inspectionWebDec 16, 2006 · Root drying could thus be a way to avoid this variability source. If fresh root parameters are required, dry root parameters can be converted in fresh root parameters using equations linking fresh and dry diameters, lengths or weights. ... Root life span, efficiency, and turnover. In: Waisel Y, Eshel A, Kafkafi U (eds) Plant roots, the hidden ... cross check principle audiology

"WebDec 21, 2001 · The root lifespan that maximizes efficiency can be visualized by plotting E lifetime over time, and represents the theoretically optimal root life span ( Yanai et al., 1995; Eissenstat & Yanai, 1997 ). Parameters for calculating nutrient uptake Phosphorus uptake (UPTAKE) was estimated by three alternative methods. " - Root life span efficiency and turnover

Root life span efficiency and turnover

Estimating age‐dependent costs and benefits of roots with …

WebJul 11, 2008 · The shorter root life span would facilitate root turnover and generation of young root, which in turn would favour water and nutrient use efficiency, thus allowing L. chinensis to better cope with their stressed habitats. Physiologically, rhizomes are strong sinks to compete for photoassimilates with roots. As a result, it is conceivable that ... WebRoot 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 9780429221859 Share ABSTRACT Like other plant organs, roots have a life history in …

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WebDifferences in the life-span between root diameter and root order affect estimates of root turnover. Therefore, based on this study, both diameter and order should be considered when estimating fine root life-span and turnover. Key words: Fine root diameter, Root order, Life-span, Turnover, Fraxinus mandshurica, Larix gmelinii Cite this article WebJan 25, 2006 · The efficiency of the mycorrhizal infection was determined on five root systems after randomly sampling 30 pieces of root (1 cm long) per experimental condition. ... Root DW increased from 0.009 g at VS1 to 9.193 g at RS2, while shoot DW increased from 0.026 g at VS1 to 284.25 g at RS2. ... This evolution during the life cycle of M. truncatula ...

Webroot turnover rate and their sensitivity to changes in root phenology. Estimates of ﬁne root turnover rate were calculated using four common methods relating turn-over to total root … WebJun 23, 2014 · All the root architecture modifications resulting from the interaction between seedlings and bioagents (rhizobacteria and Trichoderma spp.) observed in the present study favored the root plasticity of rice seedlings. ... “Root life span, efficiency and turnover,” in Plant Roots: The Hidden Half, Y. Waisel, A. Eshel, and U. Kafkafi, Eds., pp ...

WebMar 1, 2005 · Since new short-lived roots were shown to have higher resource uptake efficiencies (Volder et al., 2005), roots with short life span should be more effective in absorbing water and... WebJul 1, 2005 · The fine root NPP was calculated according to the decision matrix, and root turnover rate was calculated as annual root production divided by mean fine root biomass.The mean biomass of fine (<2 mm) and finest (<1 mm) roots in ingrowth cores collected in the third year after installation was two times smaller than that in soil cores.

WebVan der Krift TAJ, Berendse F (2002) Root life spans of four grass species from habitats differing in nutrient availability. Funct Ecol 16:198–203. CrossRef Google Scholar Van …

WebMay 1, 2013 · Roots tend to favour slower growth rates and longer fine root life spans to promote high resource use efficiency (Chen and Brassard 2013; Eissenstat et al. 2000). ... Root production,... bugkuctf easy_reWebDec 21, 2001 · The relation between root age and root function is poorly understood, despite its importance to root longevity. The effect of root age on respiration rates and 32 P … bugkuctf pwn overflowWebJul 7, 2008 · Only two studies have determined the effects of elevated CO 2 on conifer fine-root life span, and there is no clear trend. Elevated CO 2 increases the absolute fine-root turnover rates; however, the standing crop root biomass is also greater, and the effect of elevated CO 2 on relative turnover rates (turnover∶biomass) ranges from an increase ... bug knight gameWebMar 3, 2012 · Roots are inhabited by a broad range of fungi, including pathogens and mycorrhizal fungi, with functional traits related to plant health and nutrition. ... Eissenstat DM, Yanai RD (2002) Root life span, efficiency, and turnover. In: Waisel Y, Eshel S, Kafkafi U (eds) Plant root: the hidden half. Marcel Dekker, New York, pp 221–238. bugkuctf web wpWebDec 15, 2006 · Within their lifespan, fine roots experience very different site conditions influencing functioning and efficiency. It is assumed that fine roots are maintained as long as the benefits (water and nutrient uptake) outweighs the costs ( Eissenstat and Yanai, 2002, Burton et al., 2000 ). cross check principleWebThe 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 … bugkuctf 矛盾WebJul 7, 2011 · On average, ~44% of the root volume was in the top 20-cm soil layer, 70% in the top 40 cm, and 90% in the top 60 cm. About 5% of the roots in pulse crops were located below 60 cm in depth, significantly less than the 12% … cross check references