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J. Roger Harris and Susan D. Day

aeration, mechanical impedance and tree establishment J. Environ. Hort. 13 64 71 Day, S.D. Harris, J.R. 2008 Growth, survival, and root system morphology of deeply planted Coryluys colurna seven years after transplanting and the effects of root collar

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Maren J. Mochizuki, Anusuya Rangarajan, Robin R. Bellinder, Harold M. van Es, and Thomas Björkman

series book 4. Sust. Agr. Network Beltsville, MD Maiorana, M. Castrignano, A. Fornaro, F. 2001 Crop residue management effects on soil mechanical impedance J. Agr. Eng. Res. 79 231 237

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Qin Shi, Yunlong Yin, Zhiquan Wang, Wencai Fan, Jinbo Guo, and Jianfeng Hua

significant decrease in root volume would contribute to greater root density, leading to smaller mechanical impedance and greater penetrate capacity when T . 406 plant roots are elongated. There is a consensus that stronger root vertical growth ability could

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Donita L. Bryan, Michael A. Arnold, Astrid Volder, W. Todd Watson, Leonardo Lombardini, John J. Sloan, Luis A. Valdez-Aguilar, and Andrew D. Cartmill

oxygen content, and/or mechanical impedance of roots ( Miller and Gardiner, 1998 ), and thus deep planting is more likely to be detrimental in clay soils than in the well-drained soils used in the Day and Harris (2008) study and our current study (77

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Pedro García-Caparrós, Olga González-Salmerón, Mónica Pérez-Saiz, Raquel Calatrava, María Teresa Lao, Rosa María Chica, and Gumersindo De la Cruz

of light by as much as 50%, mainly due to the mechanical impedance of light by greenhouse support structures and nets ( Fisher and Runkle, 2004 ). Plants in general have the ability to adjust to changes in environmental conditions such as low

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Francisco García-Sánchez and James P. Syvertsen

balance while restricting Na + absorption in relation to soils with low Ca 2+ ( Yamada et al., 2007 ). Soil ion exchange capacity, mechanical impedance of roots, soil texture, and/or the effect of soil matric potential can influence the availability of

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Gerardo H. Nunez, Hilda Patricia Rodríguez-Armenta, Rebecca L. Darnell, and James W. Olmstead

Root growth and RSA are affected by edaphic and genetic factors. Soil characteristics such as mechanical impedance, moisture content, and nutrient availability can affect the size of the root system ( Gioia et al., 2015 ; Hund et al., 2009 ; Jin

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Suping Zhou, Marsha Palmer, Jing Zhou, Sarabjit Bhatti, Kevin J. Howe, Tara Fish, and Theodore W. Thannhauser

mechanical impedance: A review of limiting stresses and beneficial root tip traits J. Expt. Bot. 62 59 68 10.1093/jxb/erq350 Boehm, A.M. Pütz, S. Altenhöfer, D. Sickmann, A. Falk, M. 2007 Precise protein quantification based on peptide quantification using