2010
DOI: 10.1590/s0103-90162010000600013
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Abstract: Plant soil compaction poses a serious problem to agriculture because it produces different types of changes in plant characteristics. No method has been implemented to date to use root morphological changes as indicators of soil compaction levels. Therefore, the aim of the present study was to evaluate whether or not the morphological changes in root apexes of soybean (Glycine max (L.) Merrill) can be used as indicators of soil compaction levels. To this end, a silt-loamy soil material (from a Typic Argiudoll,… Show more

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Cited by 18 publications
(6 citation statements)
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References 25 publications
(34 reference statements)
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“…Sarto et al (2018) have also observed that the root diameter of Carthamus tinctorius L. (IMA-2106 genotype) increased in the compacted layer, with an increased mechanical penetration resistance. This indicates that compaction promotes root thickening, because of morphophysiological changes in the radicle system after entering the compacted layer (Ramos et al 2010). These results are also in agreement with the hypothesis of Russell & Goss (1974), which state that mechanical soil resistance typically causes increases in root diameter within the compacted layer.…”
Section: Resultssupporting
confidence: 88%
“…Sarto et al (2018) have also observed that the root diameter of Carthamus tinctorius L. (IMA-2106 genotype) increased in the compacted layer, with an increased mechanical penetration resistance. This indicates that compaction promotes root thickening, because of morphophysiological changes in the radicle system after entering the compacted layer (Ramos et al 2010). These results are also in agreement with the hypothesis of Russell & Goss (1974), which state that mechanical soil resistance typically causes increases in root diameter within the compacted layer.…”
Section: Resultssupporting
confidence: 88%
“…Yield reductions will be due to reduced water supply, which in turn are determined by changes in soil water infiltration and storage, and the crop's ability to extend a root system to access that water. Such a response to compaction is discussed in se veral studies (e.g., Barraclough and Weir, 1988;Ramos et al, 2010). Other possible effects on yield not considered in the modelling are impaired germination due to increased soil mechanical strength and subsequent reduction o f plant stand (Hadas et al, 1985;Radford et al, 2000).…”
Section: Modelling Of Crop Performancementioning
confidence: 98%
“…Furthermore, the mechanism underlying root-shoot and root-soil interactions, roles of root-sourced hormones in regulating crop growth and development, and soil moisture and nutrient management on the root architecture and physiology may be necessary for the root morphology itself. Indeed, Ramos et al (2010) reported that root morphology changes depending on soil physicochemical characters. This interaction was supported by Forde and Lorenzo (2001) when they proposed "trophomorphogenesis" to describe changes in plant morphology that arise from variations in the availability or distribution of nutrients in the environment.…”
Section: Discussionmentioning
confidence: 99%