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Tomás Martínez-Trinidad, W. Todd Watson, and Russell K. Book

can be stunted for several years after trees are transplanted ( Haase and Rose, 1993 ; Johnson et al., 1984 ; Struve, 2009 ; Watson, 2000 , 2005 ; Watson and Sydnor, 1987 ). In some cases, 85% to 95% of the rooting area is removed when trees are

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John R. Yeo, Jerry E. Weiland, Dan M. Sullivan, and David R. Bryla

Phytophthora cinnamomi is a highly virulent root rot pathogen of highbush blueberry and is present in most growing regions worldwide ( Strik and Yarborough, 2005 ; Zentmyer, 1980 ). Symptoms of infection include poor shoot growth, root necrosis

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Keisha Rose-Harvey, Kevin J. McInnes, and James C. Thomas

Golf putting greens and sports fields that are designed to use a geotextile to retain a sand-based root zone mixture atop a drainage layer are an alternative to the popular design recommended by the U.S. Golf Association (USGA) where the root zone

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Kelly T. Morgan, T.A. Obreza, and J.M.S. Scholberg

Root system structure determines the volume of soil accessible to crop plants as well as the pathway for water and solute uptake ( Kramer and Boyer, 1995 ). Increasing the length of small-diameter fibrous roots within a crop root system increases

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L. Eric Hinesley and Layne K. Snelling

of similar unnamed products. We thank N.C. Forest Service personnel K.O. Summerville, Wilson Norris, and Bill Pickens who provided pallets, rooting media, containers, shade cloth, and shade frames and permitted access to equipment, personnel, land

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J.-L. Arsenault, S. Poulcur, C. Messier, and R. Guay

114 WORKSHOP 18 Advanced Root and Rhizosphere Analysis Systems

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Taryn L. Bauerle, William L. Bauerle, Marc Goebel, and David M. Barnard

moisture for root uptake a challenge ( Daniels et al., 2012 ). Given that water uptake by plant roots is the primary driver of soil moisture depletion in irrigated crop production systems ( Clothier and Green, 1994 ), surprisingly few studies report how

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Milton E. McGiffen Jr. and Edmund J. Ogbuchiekwe

We thank Tony Vanden Hombergh and Carrie Young of Kalsec, Inc. for spectrophotometric analysis of root tissue, Anwar Ali and Carol Lovatt of the Univ. of California for preparation of the beta-carotene standard curve, Grimmway and Bolthouse

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Pauline H. Andrews and P. Allen Hammer

–17906 of the Purdue University Office of Agricultural Research. We thank The Scotts Company for supplying root media and Oglevee Ltd. for supplying rooted cuttings for this study.

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David H. Suchoff, Christopher C. Gunter, and Frank J. Louws

The efficacy of herbaceous grafts relies on the replacement of a scion root system with that of a rootstock with known disease resistance. The use of disease-resistant rootstocks in grafted tomato production has proven efficacious in managing