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Genotype×environment interactions for root depth of wheat
Field Crops Research, 2012Numerous studies have reported on genotype x environment (G x E) interactions for yield and components of yield, but none to our knowledge have attempted to use this approach for root traits. G x E interactions for root depth were assessed for 24 wheat genotypes over six field environments with contrasting soil physical characteristics in the low ...
Botwright Acuna, T. L., Wade, L. J.
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Rooting Depth and Spatial Arrangement of Roots in Winter Wheat
1991ABSTRACT The Kinetics of rooting depth and spatial arrangement of winter wheat roots were studied in field conditions. Rooting depth was observed with a minirhizotron and spatial arrangement by root mapping. Distances between each point in the soil and the nearest root were calculated directly from 4 superimposed horizontal maps.
J. MASSE, F. TARDIEU, C. COLNENNE
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Depth of root symbiont occurrence in soil
Biology and Fertility of Soils, 1986The woody legume Prosopis glandulosa (mesquite) growing in the California Sonoran Desert develops functional root symbiotic associations (N2-fixing nodules, vesicular-arbuscular mycorrhizal fungi) at depths greater than 4 m in moist soil above a seasonally stable water table. Population densities of symbiotic microorganisms are substantially greater at
R.A. Virginia +2 more
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Effective root depth of the Caatinga biome
Journal of Arid Environments, 2013Abstract In Brazil, the semi-arid tropical zone comprises approximately 12% of its territory. In this region the Caatinga is the only exclusively Brazilian biome. Nonetheless, there is a lack of knowledge about its structure and functioning. This study aimed at assessing the effective depth of the root system of the preserved Caatinga biome, as well ...
E.A.R. Pinheiro +2 more
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Rooting depth of wheat in the Victorian Mallee
Australian Journal of Experimental Agriculture, 1990In 1986 and 1987 wheat was sown in an experiment at the Mallee Research Station, Walpeup, at 2 times of sowing and with 3 rates of applied nitrogen. Soil cores were taken and trenches excavated to 1.5 m to measure wheat root growth and depth of rooting. Wheat roots penetrated to a maximum depth of 104 cm in crops sown in May, the optimum time of sowing
M Incerti, GJ O'Leary
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Grapevine water relations and rooting depth in karstic soils
Science of The Total Environment, 2019Environmental sustainability of viticulture is negatively affected by prolonged droughts. In limestone dominated regions, there is limited knowledge on grapevine water status and on methods for accurate evaluation of actual water demand, necessary to appropriately manage irrigation.
Savi T. +7 more
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An analytical root depth distribution
Schenk (2008) proposed a model for the depth distribution of plant roots based on a simple hydrological scheme and the assumptions that plants will take up the shallowest water available first, and will distribute their roots in proportion to uptake at each depth. Here, we derive an analytical solution to the Schenk model under an idealized climate (inCiaran J. Harman, Dana A. Lapides
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Rooting Depth and Dry Matter Development of Sunflower
Agronomy Journal, 1993AbstractThe use of modeling and computers increases the potential to estimate crop water use and irrigation requirements. However, for that potential to be realized, data on root growth are needed for model development and/or input. Few field studies have included direct measurement of sunflower (Helianthus annuus L.) root development.
M. N. Jaafar, L. R. Stone, D. E. Goodrum
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